Storm Data and Unusual Weather Phenomena - CIG - Mesonet

DECEMBER 1999 

VOLUME 41 

NUMBER 12 

STORM 

DATA 

AND UNUSUAL WEATHER PHENOMENA 

WITH LATE REPORTS AND CORRECTIONS 

noaa 

NATIONAL OCEANIC AND NATIONAL ENVIRONMENTAL SATELLITE, NATIONAL CLIMATIC DATA CENTER 

ATMOSPHERIC ADMINISTRATION DATA AND INFORMATION SERVICE ASHEVILLE, NC

Cover: For the last cover picture of the millenium, the editors selected out first cover photo, which appeared in the August 

1983 issue. The caption reads: “Waves from Hurricane Alecia crashing over a fishing pier on Galveston Island, TX, on 

August 17 th , 1983.” (Photograph courtesy of Barbara White and Al Wooten) 

TABLE OF CONTENTS 

Page 

Outstanding Storms of the Month ……………………………………………………………………………………….. 4 

Storm Data and Unusual Weather Phenomena ………………………………………………………………………….. 5 

Additions/ Corrections .…………………………………………………………………………………………………… 82 

Reference Notes ..…………………………………………………………………………………………………………. 97 

STORM DATA 

(ISSN 0039-1972) 

National Climatic Data Center 

Editor: Stephen Del Greco 

Assistant Editor: Stuart Hinson 

STORM DATA is prepared, funded, and distributed by the National Oceanic and Atmospheric Administration (NOAA). The 

Outstanding Storms of the Month section is prepared by the Data Operations Branch of the National Climatic Data Center. 

The Storm Data and Unusual Weather Phenomena narratives and Hurricane/Tropical Storm summaries are prepared by the 

National Weather Service. Monthly and annual statistics and summaries of tornado and lightning events resulting in deaths, 

injuries, and damage are compiled by cooperative efforts between the National Climatic Data Center and the Storm Prediction 

Center. 

STORM DATA contains all confirmed information on storms available to our staff at the time of publication. However, due to 

difficulties inherent in the collection of this type of data, it is not all-inclusive. Late reports and corrections are printed in each 

edition. 

Maps of the National Weather Service County Warning Areas which are used in the Storm Data and Unusual Weather 

Phenomena section will be printed in all editions. 

Except for limited editing to correct grammatical errors, materials submitted are generally published as received. 

Note: "None Reported" means that no severe weather occurred and "Not Received" means that no reports were received for this 

region at the time of printing. 

Subscription, pricing, and ordering information is available from: 


151 Patton Avenue 

Asheville, NC 28801 

(828)271-4800 or (828) CLIMATE 

The editors of STORM DATA solicits your help in acquiring photographs (prints or slides; black and white, or color), maps, 

clippings, etc. of significant or unusual weather events (past or present). These could be for use in the "Outstanding Storms of 

the Month'' section of STORM DATA. We request our subscribers or other interested persons to mail such items to: 

Editor - Storm Data 



Asheville, NC 28801 

Any such items received by the editor will be for use in STORM DATA only. Any other use will be with the permission of 

the owner of said items. Materials submitted will be returned if requested in the original submission. 

"I certify that this is an official publication of the National Oceanic and Atmospheric Administration and is compiled from 

information received at the National Climatic Data Center Asheville, North Carolina 28801-2733." 

2 

Thomas R. Karl 

Director, 

National Climatic Data Center

� 

'HFHPEHU &RQILUPHG 7RUQDGRHV 

� �� 

�� 

� �� 

�� 

�� 

�� 

�� 

�� 

��

Outstanding Storms of the Month 

No “Outstanding Storm of the Month” was submitted for December 1999. 

4

ALABAMA, North Central 

Franklin County 

Red Bay 09 2155CST 

0 0 0 0 

Dime size hail was reported near Red Bay. 

Colbert County 

Hail (0.75) 

7.4 W Crooked Oak 09 2212CST 

0 0 0 0 Hail (0.75) 

Dime size hail was reported on SR 247 about 3 miles inside the Franklin/Colbert County line by the 247 Volunteer Fire Department. 

Winston County 

Haleyville 09 2240CST 

0 0 3K 0 Thunderstorm Wind (G50) 

Several trees were blown down onto roadways around Haleyville. One outbuilding was destroyed on CR 23. 

ALZ001>007- 

009>017 

ALZ006 Madison 

ALZ006 Madison 

ALABAMA, Southeast 

ALABAMA, Southwest 

Lauderdale - Colbert - Franklin - Lawrence - Limestone - Madison - Morgan - Jackson - Dekalb - 

Marion - Lamar - Fayette - Winston - Walker - Cullman - Blount 

21 0400CST 

1030CST 

0 0 0 0 Ice Storm 

A light mixture of rain, freezing rain, sleet, and snow flurries fell across northern Alabama. Numerous trees across the area picked up 

a coating of ice, but it melted away by late morning. No significant accumulations were reported. Roadways became briefly slick in 

the early morning hours, but no significant icing problems occurred and no weather related accidents were reported. 

31 2359CST 

0 0 0 0 Excessive Heat 

The average temperature was 62.60 degrees at the Huntsville International Airport for 1999. This was the 2nd warmest temperature 

ever measured since records began in 1958. 

31 2359CST 

0 0 0 0 Drought 

The yearly rainfall measured at the Huntsville International Airport was 45.58 inches. This was the 4th lowest yearly rainfall ever 

recorded since records began in 1958. 

NONE REPORTED. 


ALASKA, Northern 

AKZ007 Tanana Valley 

01 0000AST 

1100AST 

0 0 

High Wind (G39) 

Deep low pressure in the Gulf of Alaska moving northeast and weak high pressure over the NW Yukon Territory resulted in a 

tightening pressure gradient over the upper Tanana Valley, producing strong east winds at Delta Junction. The Delta Junction ASOS 

reported gusts as high as 45 mph. 

AKZ003-009 Lower Kobuk Valley-Northern Seward Peninsula - St. Lawrence Island-Bering Strait Coast 

02 1535AST 

0 0 


03 1400AST 

Large Arctic High over the NW Arctic coast was stationary while a Low pressure center developed over the Seward Peninsula 

creating local strong winds at: 

Saint Lawrence Island: Gambell AWOS highest gust 52 mph. 

Lower Kobuk Valley to Cape Lisburne: Point Hope AWOS highest gust 61 mph. 

AKZ001 Arctic Slope Coastal 


Storm Data and Unusual Weather Phenomena 

Time 

Path Path 

Number of 

Estimated 

Local/ Length Width 

Persons 

Damage 

Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm 

18 2315AST 

0 0 

Extreme Windchill 

20 0000AST 

With a cold airmass in place over the North Slope, a low pressure center moved north over the west coast of Alaska producing 

extreme wind chill conditions at Point Lay. Lowest reported wind chill at Point Lay was -96. Wind speed was 25 mph. 

19 0000AST 

0600AST 

0 0 


An occluded front moving north over the Gulf of Alaska strengthened the pressure gradient across the upper Tanana Valley, 

producing strong east winds at Delta Junction. Delta Junction ASOS reported a peak gust of 51 mph. 

15 

December 1999

ALASKA, Northern 

AKZ004>005- Koyukuk-Upper Kobuk Valleys - Upper Yukon Valley - Tanana Valley - Lower Yukon Valley 

007>008 

20 

23 

21 

23 

0900AST 

1700AST 


0600AST 

0500AST 


0 

0 

0 

0 

Heavy Snow 

Ice Storm 

21 2100AST 

0 0 25K 


22 1000AST 

A strong Low in the North Pacific moved north over the Alaska Peninsula on the evening of the 21st, then northeast over the interior 

of Alaska on the 22nd, with a second low developing just beyond the northeast corner of Alaska on the afternoon of the 22nd. The 

main low over the central interior also moved northeast joining the second low early on the 23rd, with a cold front sweeping east 

across the interior the night of the 22nd and stalling over the eastern Tanana Valley early on the 23rd, then moving east into Canada 

late in the day. The storm system brought a variety of winter weather to interior Alaska, along with High winds near the Alaska 

Range. Behind the cold front, moderate west winds over the eastern Tanana Valley existed from 9am on the 23rd to 9am on the 24th, 

hampering snow and ice removal in the Tok area. 

SNOW amounts reported: 

ZONE 5: Upper Yukon Valley: Chandalar Lake #2 23rd 7.5 inches; Circle Hot Springs 21st-22nd 8.4 inches; Wiseman 21st-22nd 

13.2 inches; Chandalar lake 22nd 7.0 inches; 7 mile D.O.T 22nd 8.0 inches; Chicken 21st 9.0 inches; Eagle 21st 7.0 inches 

ZONE 4: Koyukuk Valley: Coldfoot D.O.T. 23rd-24th 17.0 inches; Chandalar Shelf D.O.T. 23rd 14.0 inches. 

ZONE 8: Lower Yukon Valley: Galena 22nd 7.0 inches. 

ZONE 7: Tanana Valley: Lake Minchumina 21st-22nd 15.5 inches; Tok D.O.T. 21st-24th 20.0 inches; Robertson River 21st 17.9 

inches; Tanacross 21st 10.0 inches; Dry Creek 21st 14.5 inches; Northway D.O.T. 21st 6.0 inches. The State of Alaska 

Department of Transportation at Delta Junction reported unofficially that 34 inches had fallen by 9pm on the 21st at Trimms Camp 

south of Delta Junction on the Richardson Highway (in the Alaska Range). 

FREEZING RAIN reported across the Tanana Valley: Ester 5NE 21st 9pm; Fox 21st-22nd; Ester Dome 21st; Chena Ridge 21st ; 

North Pole(KJNP Radio) 21st; Fairbanks midtown 22nd-23rd; Goldstream22nd freezing drizzle; Eureka 23rd. The State of Alaska 

Department of Transportation at Delta Junction closed the Richardson Highway due to strong winds and heavy rains freezing on the 

roads. Roadside ditches were full and water was running down the highways. Creeks along the Richardson were overflowing and 

running across the road. Cold ground conditions caused the water to freeze on the road accumulating up to 4 inches of ice on the 

roadway. D.O.T. snow/plow trucks were blown off the road as a result of the high winds. Two private vehicles were stranded 

overnight in the Trimms Areas (south of Delta Junction in the Alaska Range) because neither Delta nor Paxson road crews could 

reach them. The D.O.T. office at Tok reported extremely hazardous driving conditions continuing onthe 23rd as an additional six 

inches of snow fell on the ice layer. 

HIGH WIND, Tanana Valley: Highest gusts: Denali Park AWOS 47 mph; Healy 60 mph; Delta Junction ASOS 48 mph - ASOS was 

without power during the middle of this event, so highest gust noted above was from available data before and after power outage.. 

See above narrative on Freezing Rain in the Delta Junction/northern Richardson Highway area. The State of Alaska Department of 

Transportation at Delta Junction estimated winds as high as 60 mph sustained with gusts to 85 mph; trees and signs were blown 

down. 

AKZ002-004>005 North Slopes Of Brooks Range - Koyukuk-Upper Kobuk Valleys - Upper Yukon Valley 




Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


24 2200AST 

0 0 


25 0235AST 

Building high pressure over interior Alaska with a cold airmass over the Brooks Range and North Slope created a period of extreme 

windchills on the north and south slopes of the Brooks Range, inferred from observations at Anaktuvuk Pass, where the lowest 

windchill value was -80. 

25 0600AST 

0 0 


1500AST 

Strong high pressure was stationary over eastern Canada while a low pressure center at mid-levels of the atmosphere moved 

north-northeast over the western Alaska Range, the western Tanana Valley, and to Fort Yukon in the Upper Yukon Valley before 

dissipating. This created strong east winds at Delta Junction, where the highest winds reported by the ASOS were 39 mph sustained 

and gust to 58 mph. 

26 1535AST 

0 0 


27 1000AST 

The occlusion from a strong low moving north over the Alaska Peninsula moved over the western Alaska Range and before 

26 

December 1999

ALASKA, Northern dissipating brought strong south winds near Alaska Range Passes. Highest winds reported were: 


Healy gust to 53 mph; Delta Junction ASOS gust to 50 mph. 

28 

29 

29 

31 

2124AST 

1300AST 


0615AST 

1400AST 



Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 

0 



29 1100AST 

0 0 

Blizzard 

31 2359AST 

Large low pressure 600 miles northeast of Prudhoe Bay drifted southwest to 450 miles northeast of Prudhoe Bay with a weather front 

moving southeast over the Beaufort Sea. Strong high pressure remaining over Russia Far East created strong winds and blizzard 

conditions over the eastern Arctic Coast, along with low wind chills initially. Event continued into January 2000. 

Blizzard conditions occurred at: Deadhorse, Barter Island, Kuparuk. 

High wind occurred at Barter Island: 67 mph sustained, gust to 78 mph. 

Lowest Wind Chill reported: Barter Island -88; Deadhorse -90; Nuiqsut -87. 

ALASKA, Southeast 

AKZ024 Lynn Canal-Glacier Bay 

06 1700AST 

2300AST 

The haines areas received 2 feet of snow. 

AKZ027 Southern Southeast Alaska Ernest Sound To Dixon Entrance 

08 

0300AST 

0900AST 

AKZ028 Dixon Entrance To Cape Decision-Coastal Area 

08 0300AST 

0900AST 

Peak winds at several locations were 45 kt. 

AKZ022 Cape Fairweather To Cape Suckling-Coastal Area 

0 

0 

0 

0 

0 

0 

Heavy Snow 



08 0800AST 

1400AST 

0 0 

Heavy Snow 

Heavy snow warning for Zone 22 West of Yakutat. Satellite data indicated heavy snow showers were over coastal areas where no 

surface observations were available. 


11 1530AST 

0 0 

Heavy Snow 

12 0845AST 

Snowfall at Yakutat was 13.2 inches for a 48 hour period. Unknown how much accumulated in any period because the snow was 

occasionally mixed with rain. 

AKZ027>028 Southern Southeast Alaska Ernest Sound To Dixon Entrance - Dixon Entrance To Cape Decision- 

Coastal Area 

13 

1000AST 

2130AST 


14 0600AST 

2130AST 

0 

Numerous heavy snow showers produced 13 inches at Yakutat. 


17 1000AST 

1600AST 

Yakutat received 10.2 inches of snow in 6 hours. 

18 1600AST 

0 

19 0600AST 

Yakutat received 21 inches of snow in about 30 hours. 

0 

0 

0 

0 

0 

0 

Heavy Snow 

Heavy Snow 

Heavy Snow 

AKZ022-025 Cape Fairweather To Cape Suckling-Coastal Area - Juneau Borough-Admiralty Island-Icy Strait 

Area 

37 

Heavy Snow 

December 1999

ALASKA, Southeast 

AKZ025 Juneau Borough-Admiralty Island-Icy Strait Area 

ALASKA, Southern 

AKZ017 Central Gulf Coast 

27 0100AST 

0 0 

Flood 

28 1500AST 

Aslow moving tropical connection frontal boundry spread 3 to 5 inches of rain over the Northern Panhandle. Minor small stream 

flooding of Jordan Creek in the Juneau airport area flooded two homes and one business. The Skagway and Taiya Rivers near 

Skagway were bank full but no flooding was reported. 

01 0000AST 

0400AST 

0 0 


A moderate front, associated with a strong 958 mb low 120 miles south of Middleton Island, was preceded by brisk east winds across 

much of the Gulf of Alaska waters immediately adjacent to the Alaskan coast. Wind gusts reached 62 mph at Middleton Island very 

early Wednesday. The front moved inland and the low weakened significantly as the day progressed Wednesday. 

AKZ015-018 Cook Inlet - Kodiak Island-Eastern Alaska Peninsula 

AKZ020 Aleutian Islands 



06 1200AST 

0 0 


2359AST 

Strong westerly winds, on the back side of a weakening low near Middleton Island, were reported through the Barren Islands 

(northeast of Kodiak Island) and in the lower part of Cook Inlet. Gusts reached close to 60 mph at the Augustine Island site in lower 

Cook Inlet. Westerly winds of 65 mph were reported by the M/V "Sealand Tacoma", east southeast of the Barren Islands, late 

Monday. 

07 1200AST 

0 0 


08 0900AST 

A strong front elongated eastward through the Aleutians and extreme southern Bering Sea Tuesday afternoon through Wednesday. 

As the front elongated east, it weakened. Initially, strong southeast winds to 71 mph were reported around Shemya (extreme western 

Aleutians) late Tuesday afternoon and Tuesday night. Winds were not quite as strong across the eastern Aleutians in advance of the 

front. 

08 0600AST 

2300AST 

0 0 

Heavy Snow 

11 inches of new snow was recorded at the DOT site just east of the town of Cordova. Most of the snow fell in 12 hours between 

9am and 9pm Wednesday. 

08 

09 

1800AST 

1500AST 

AKZ019-021 Western Alaska Peninsula - Pribilof Islands 

AKZ011>013- 

015>016 

0 

0 


10 1200AST 

0 0 

Blizzard 

11 0900AST 

Strong northwesterly winds to 60 mph were observed along the western Aleutians late Wednesday and Thursday. A strong 966 mb 

low, just south of Attu late Wednesday afternoon, moved east southeast then dissipated Thursday morning. A second center formed 

in the south central Bering Sea early Thursday, curving south southeast by Adak Thursday morning. As the low passed, brisk 

westerly winds on the back side of the storm moved into Adak, where gusts reached close to 60 mph in the mid afternoon. Williwas 

moving down from Mount Ballyhoo produced wind gusts of 86 mph at the Dutch Harbor Spit Friday between 7 pm and 8 pm. 

Blizzard conditions developed across the Pribilofs and the western Alaska Peninsula Friday and Saturday. Northwest wind gusts 

from 35 to near 50 mph dropped visibilities to 1/4 mile in blowing snow. 

Kuskokwim Delta - Kuskokwim Valley - Susitna Valley - Cook Inlet - Bristol Bay Coastal 

10 

12 

0000AST 

2300AST 



Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 


12 0000AST 

2300AST 

0 0 


Brisk northerly winds brought wind chills down to 65 below across many areas of the Kuskokwim Delta and Bristol Bay. Local wind 

chills to 65 below were also observed along higher terrain of the Kuskokwim Valley. 

Brisk northeast winds, gusting to 50 mph locally around Cantwell and out of the passes of the western Alaska Range Saturday and 

Sunday, also brought wind chills down as low as 65 below. 

48 

December 1999

ALASKA, Southern Local winds around Whittier reached 63 mph Sunday evening. 

AKZ019 Western Alaska Peninsula 

11 

12 

0000AST 

1600AST 

AKZ021 Pribilof Islands 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

Blizzard 

11 0000AST 

0 0 

Heavy Snow 

12 0900AST 

An "arctic type" low moved southward through the eastern Bering Sea to a position between Saint Paul Island and Unalaska 

mid-afternoon Saturday as an innocuous 1014 mb center. As the system turned southeast into the 'relatively milder' waters of the 

North Pacific, the very cold, unstable air aloft, associated with the low, triggered rapid deepening. By 3pm Sunday the low was an 

intense 986 mb storm 300 miles south of Cordova. 

Heavy snows were observed across the Pribilofs and Alaska Peninsula as the low passed...with snowfall amounts ranging from 6 to 

12 inches in less than 24 hours. Brisk north and northwest winds on the back side of the low caused blizzard conditions in blowing 

snow along the Alaska Peninsula from Saturday afternoon through Sunday afternoon. 

AKZ017>018-020 Central Gulf Coast - Kodiak Island-Eastern Alaska Peninsula - Aleutian Islands 

18 

19 

0000AST 

2359AST 

AKZ011-019-021 Kuskokwim Delta - Western Alaska Peninsula - Pribilof Islands 

0 

0 


18 1200AST 

0 0 

Blizzard 

20 2359AST 

An intense 963 mb low in the north-central Pacific moved into Bristol Bay early Sunday, weakening to a 980 mb center. By 9 am 

Monday, the low had weakened to a 994 mb center just west of Kotzebue Sound. Brisk north winds along the west side of the low 

were observed from the Pribilofs into the eastern Aleutians. Gusts reached 67 mph at Dutch Harbor Saturday. 

Strong easterly winds were observed ahead of the front associated with this low. By Saturday evening, the front had moved northeast 

into the Gulf of Alaska...on its way inland toward the Alaska Range early Sunday. Gusts reached 76 mph at Middleton Island in 

advance of the front, diminishing rapidly around 3 am Sunday as the front moved by the Island. Gusts reached 53 mph late Saturday, 

and 64 mph Sunday, around Cordova. Strongest winds around Cordova occurred with the frontal passage. 

Across the Kuskokwim Delta, blizzard conditions developed Saturday, continuing into Sunday. Wind chills reached 50 below around 

Bethel Monday with winds still gusting to 40 mph. 

Blizzard conditions were also reported across the Pribilofs from Saturday through early Monday. 

Strong northerly winds were also reported along the Alaska Peninsula, accompanied by local blizzard conditions in blowing snow 

Monday. 

AKZ014>015-017 Copper River Basin - Cook Inlet - Central Gulf Coast 

21 

22 

0000AST 

2359AST 

AKZ015-017 Cook Inlet - Central Gulf Coast 

0 

0 

75K 


21 0000AST 

2359AST 

0 0 200K 

Heavy Snow 

Strong southeasterly winds blew across the Gulf of Alaska Tuesday and Wednesday ahead of a moderate front. While wind gusts 

were generally 40 to 60 mph ahead of the front, reports of stronger winds were received. Prior to the onset of strong winds, many 

areas adjacent to Prince William Sound and across Southcentral Alaska received a heavy dump of snow. 

Notably, in the city of Cordova, east southeast winds reached sustained values of 104 mph with gusts reaching an incredible 150 

mph. This report came from a pilot on the ground in downtown Cordova by the Coast Guard. Additionally , there were unconfirmed 

reports the following day of water from Eyak Lake onto the runway (which is adjacent to the Lake). Two vessels broke loose from 

their moorings in the Cordova harbor, ending up on the breakwater as wind gusts over 120 mph buffetted the area. Fortunately, the 

hulls suffered only minor damage. At least two roofs were blown off buildings. Numerous trees fell on streets and houses. A heavy 

mix of rain and snow clogged storm drains and flooded some basements. Reports from Cordova Electric Cooperative Tuesday 

afternoon measured rainfall of 5.56 inches in 24 hours! 

Avalanches temporarily blocked the Richardson Highway near Thompson Pass and were also blamed for a fiber-optic cable cut that 

interrupted telephone service to Fairbanks. Heavy snow was also reported in Thompson Pass with 28+ inches received from 7 am 

Monday to 7 am Tuesday. Two boats sunk in the Valdez Small Boat Harbor. 

Heavy snow was also reported around the Kenai Peninsula, with 10 to 14 inches recorded Monday. 

59 

December 1999

ALASKA, Southern Heavy snow preceded strong winds around Anchorage. 14.9 inches of snow fell in the city between 9 am Monday and 9 am Tuesday. 

Strong southeasterly winds then followed...especially along the Anchorage hillside. Gusts of 73 mph were recorded at the Rabbit 

Creek Forest Service site at 6pm Tuesday, followed an hour later by temperatures reaching a balmy 48 F. Winds at the site peaked at 

75 mph early Wednesday (3 am - 4 am). 

Other peak winds in the area were: 

113 mph in Bear Valley 

96 mph between 10pm Tuesday and 7am Wednesday - Mid hillside (O'Malley and Maintree) 

91 mph prior to 7am Wednesday at Glen Alps 

79 mph between 2am and 3am Wednesday at a mesonet site along Muldoon Road 

75 mph at 4:43 am Wednesday at the National Guard site along the Glenn Highway 

67 mph at Portage at 4:30 am Wednesday 

AKZ011-013- 

015>017 

Further north, wind gusts of 59 mph were recorded at Palmer at 9:24 pm Tuesday and at the Wasilla Fire Station between 3 am and 4 

am Wednesday. 

Temperatures across much of the Anchorage/Palmer area "skyrocketed into the 40s and 50s" on Wednesday, as reported by the 

Anchorage Daily News. Reports of slick roads, local flooding due to ponding of water over ice, power outages and even "bare 

enough ground to mow the lawn" were received. Nearly 300 vehicles ended up as '"ditch-divers" on Tuesday around the Anchorage 

area. At one point, thousands of homes in the Matanuska Valley were without power. On Wednesday, the Palmer Golf Course was 

opened 10 am to 3 pm...and best of all, it was free! 

Winds also reached high speeds in the Copper River Basin and were accompanied by locally heavy rains (a very unusual event at this 

time of year!). Gusts above 40 mph began at 3 pm at the Gulkana observation site, peaking at 63 mph between 6 and 7 pm Tuesday. 

Strong gusts continued through midnight. Gusts reached 55 mph at the Eureka AWOS, located along the western extent of the 

Copper River Basin. Wind gusts reached 75 mph around Paxson. 

Winds gusting as high as 70 mph were reported around th ecommunities of Halibut cove and Peterson Bay, where power was 

interrupted. 15 to 18 power poles were taken out by falling trees. Damage was said to be 'extreme' even by Homer standards. 

Kuskokwim Delta - Susitna Valley - Cook Inlet - Bristol Bay Coastal - Central Gulf Coast 

25 

27 

25 

27 

0000AST 

0400AST 

AKZ019>021 Western Alaska Peninsula - Aleutian Islands - Pribilof Islands 

26 

0000AST 

0400AST 

AKZ015 Cook Inlet 

0000AST 

2359AST 

AKZ013 Susitna Valley 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 

0 

0 

0 

Winter Storm 

Blizzard 


26 

M37OU 

0900AST 

1500AST 

1 0 2K 

Avalanche 

Blizzard conditions were reported across much of the southwest Alaskan coast, Bristol Bay, the eastern Aleutians and Pribilofs 

Sunday. Wind gusts reached close to 50 mph in places, with local wind chills to 70 below calculated in the southwest interior. By 

Sunday morning, freezing rain was locally reported across the Bristol Bay and Kuskokwim Valley zones. Two snow machiners died 

in the Kuskokwim Delta on their way to Bethel, where warnings for wind chills to 75 below were in effect. 

Rain and freezing rain were preceded by locally heavy snows across much of the southern third of the Alaska mainland from Saturday 

afternoon through midday Sunday. Another derailment and fuel spill was reported north of Talkeetna. An avalanche death was 

reported around Hatcher Pass on December 26th. 

On Sunday, southeasterly winds again reached 50 to locally 90 mph around Turnagain Arm, the Upper Anchorage Hillside, parts of 

the Matanuska-Susitna Valley and areas adjacent to Prince William Sound. Fort Richardson reached a balmy 51 F at 2:06 pm 

Sunday, with a peak wind of 56 mph occurring at 2:03 pm...just 3 minutes earlier. Wind gusts along the mid Anchorage hillside 

reached 74 mph at 4:37 pm Sunday, however further up the mountains, a 90 mph wind gust was recorded in Bear Valley. 

Newspaper reports indicated heavy snow took out power to 100 customers in Voznesenka and Kachemak Selo, with a small outage 

also reported in the east Halibut Cove area. All are areas along the shores of Kachemak Bay. 

The warm air that brought record breaking temperatures to a few locations, also caused black ice on secondary roads in much of 

Southcentral Alaska. Just prior to the warm temperatures, precipitation... which began as snow...briefly turned to freezing rain, then 

10 6 

December 1999

ALASKA, Southern all rain. Wind gusts around the Cordova boat harbor again reached 60 to 70 mph Sunday and early Monday. 


AMERICAN SAMOA 

Tutuila County 

Pago Pago 02 1130SST 

1600SST 

Tutuila County 

Countywide 28 1315SST 

1455SST 

The culprit for the hazardous weather was an intense 964 mb low situated 240 miles south of King Salmon at 9am Sunday...having 

moved quickly north toward the State from its postion in the northeast Pacific Saturday and Saturday night. The front associated with 

this low stretched almost north-south from the Susitna Valley into the eastern Pacific early Sunday morning. By 9pm Sunday, the 

low had weakened over 20 millibars to a 986 millibar center just south of Iliamna with the front displaced only about 180 miles 

furhter east. Arctic air draped around the low, roughly coinciding with the Alaska Range late Saturday, drifted north into the Tanana 

Valley, while re-entering Cook Inlet from the western Alaska Range early Monday. 

27 1200AST 

0 0 


28 1500AST 

A strong front, just south of the Aleutians, was preceded by easterly winds close to 60 mph across the central and western third of the 

Chain. Winds began to diminish as the front began to weaken Tuesday. 

ARIZONA, Central and Northeast 

AZZ015 Western Mogollon Rim 

ARIZONA, Northwest 

0 

0 

0 

0 

Urban/Sml Stream Fld 


01 0000MST 

0 0 

Drought 

31 2359MST 

A record dry spell was set at theFlagstaff airport this fall and early winter. There were 99 days without measurable precipitation at 

the airport between September 23 and January 1, 2000. On September 23, 1.45 inches of rain fell and then there was no measurable 

precipitation until January 1st when it snowed 1.3 inches (0.21 inch liquid). 


ARIZONA, South 

AZZ019-035 Northern Greenlee - Cochise County 

ARIZONA, Southwest 

03 1000MST 

1700MST 

0 0 10K 


A dry cold front moving across southern Arizona brought gusty winds and areas of blowing dust. A peak wind of 58 mph occured at 

Douglas. In northern Greenlee county a tree was blowin across Highway 191 blocking traffic just south of Hanagan Meadow. 


ARKANSAS, Central and North Central 

Scott County 

Cauthron 03 0140CST 

Logan County 

Booneville 03 0200CST 

0 

Thunderstorm winds knocked down a few trees at Booneville. 

Johnson County 

Clarksville 03 0215CST 

0 

Thunderstorm winds downed some trees in Clarksville. 

Logan County 

Subiaco 03 0235CST 

0 

Thunderstorm winds blew down a few trees at Subiaco. 

Newton County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


5 SW Jasper 03 0245CST 

0 0 

Thunderstorm winds downed several trees about 5 miles southwest of Jasper. 

11 7 

0 

0 

0 

0 

0 

Hail (0.75) 

December 1999 

Thunderstorm Wind (G50) 



Thunderstorm Wind (G50)

ARKANSAS, Central and North Central 

Polk County 

Hatfield 03 0345CST 

Polk County 

Dallas 03 0445CST 

0 0 

Thunderstorm winds knocked down some large tree limbs at Dallas. 

Polk County 

Mena 04 1450CST 

1451CST 

Clark County 

0.5 40 0 

0 

0 

0 

Hail (0.75) 


Tornado (F0) 

A weak tornado was spawned in Mena of Polk County. Mostly minor damage occurred around U.S. Highway 71 and Morrow Street, 

including some roof damage at a strip shopping center and at a couple of restaurants. An industrial plant also suffered some roof 

damage, with two empty truck trailers blown over in the parking lot. The tornado was on the ground for a half mile before dissipating. 

Hollywood 04 1625CST 

0 0 


Thunderstorm winds downed some trees around Hollywood on or near state highways 51 and 53. 

Clark County 

Gurdon 04 1625CST 

0 0 

Thunderstorm winds knocked down a few trees around Gurdon on or near state highway 53. 

Hot Spring County 

2.1 SE Friendship to 04 1649CST 

2.1 NW Donaldson 

1658CST 

Johnson County 

5 NW Clarksville to 04 1710CST 

6.8 NNW 

Clarksville 

1715CST 


4.3 75 0 

0 


Tornado (F1) 

A weak tornado was spawned in Hot Spring County. The tornado developed around 2 miles southeast of Friendship and caused 

mostly tree damage. Hundreds of trees were either snapped or twisted. The tornado crossed U.S. Highway 67 at the Ouachita River 

bridge and destroyed a barn and damaged the back porch of a house in the area. The tornado dissipated about 2 miles northwest of 

Donaldson. 

2.8 50 0 

0 

Tornado (F1) 

A weak tornado was spawned in Johnson County. The tornado developed around 5 miles northwest of Clarksville and destroyed a 

barn and a shed. One house had several pieces of siding removed and another house had some roof shingles torn off. Several trees 

and power lines were also downed before the tornado dissipated about 7 miles north-northwest of Clarksville. 

7 NNE Malvern 04 1728CST 

0 0 

Thunderstorm winds blew down a few trees about 7 miles north-northeast of Malvern. 

Yell County 

.8 NW Ola to 

2 NE Centerville 

04 1730CST 


6 SE Malvern 04 1740CST 

Garland County 

1 N Mountain Pine 09 1510CST 

Garland County 

1 W Mountain Pine 09 1510CST 

Lincoln County 

8.7 75 0 

0 


Tornado (F1) 

A weak tornado was spawned in Yell County. The tornado developed just northwest of Ola and damaged a couple of old chicken 

houses and flattened an old barn. A few houses suffered some roof damage, with damage to a few outbuildings as well. One house 

suffered more extensive damage with a broken front porch window, a damaged front porch, and several trees blown onto a metal 

fence. A few dozen trees, power lines and power poles were also downed before the tornado dissipated about 2 miles northeast of 

Centerville. 

Star City 09 1715CST 

0 0 

Thunderstorm winds knocked down some power lines at Star City. 

ARKANSAS, East 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



12 8 

0 

0 

0 

0 

0 

0 

Hail (0.88) 

Hail (1.00) 

Hail (0.75) 

December 1999 


ARKANSAS, Northwest 

Crawford County 

Alma 02 2355CST 

Madison County 

Huntsville 03 0029CST 

0 

Thunderstorm winds blew down several large tree limbs. 


0 

0 

0 

0.10K 

Marble 03 0045CST 

0 0 10K 

One half of the roof of a double-wide trailer was blown off by thunderstorm winds. 


Pettigrew 03 0045CST 

Thunderstorm winds blew large tree limbs down. 

Carroll County 

Osage 03 0103CST 

Thunderstorm winds blew large tree limbs down. 

Sebastian County 

Ft Smith 03 0118CST 




0 

0 

0 

0 

0 

0 

0 

0 

0.10K 

0.10K 

Hail (0.75) 

Thunderstorm Wind 





Hail (0.88) 

Ft Smith 03 0122CST 0.2 75 0 0 5M 

Tornado (F1) 

A gustnado occurred at 122 am near Phoenix and 46th street in Fort Smith and was on the ground for approximately 20 seconds. 3 

warehouses and 2 office buildings were heavily damaged. A motor home, 

construction trailer and cessna airplane were also destroyed. There was also damage to a hangar at the Fort Smith airport and minor 

damage was done to 2 commuter planes. 



0 

Thunderstorm winds blew down numerous power poles. 


0 

3K 


Mulberry 03 0140CST 

0 0 10K 


Thunderstorms winds blew several trees down, 9 power poles down, and the roof off a barn near Mulberry. 


Charleston 03 0140CST 


0 

0 

Hail (0.88) 

Ozark 03 0200CST 

0 0 1K 


Thunderstorm winds blew down several large trees between Mulberry in Crawford county and Ozark in Franklin county. The report 

came from the forrest service. 

ARKANSAS, Southeast 

ARKANSAS, Southwest 

Little River 

County 


18 W Ashdown 04 1345CST 

0 1 400K 


John Moon, who lives near Hwy 108 West of Ashdown, had three chicken houses, one metal building and farm equipment destroyed 

and a fourth house damaged. In addition, he lost 44,000 two day old chicks with an estimated total damage of $350 thousand dollars. 

Moon was inside one of the chicken houses when the winds struck. A large fan fell on his back causing minor injuries. The winds 

also damaged the home of Ashdown Police Sargent Danny Hallet, Hwy 108 west of Ashdown. Windows were broken out on his 

patrol car and a camper trailer was overturned. Two other homes reported roof damage; several trees were uprooted and some 

snapped off above the ground accounting for the remainder of monetary loss. 

Howard County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


1 W Center Pt to 04 1455CST 

6 E Center Pt 

1515CST 

House destroyed by thunderstorm winds. 

13 9 

0 

0 

60K 

December 1999 


ARKANSAS, Southwest 

Howard County 

7 W Nashville to 04 1455CST 

0 0 48K 

3 E Nashville 

1515CST 

Three barns destroyed and minor roof damage to a residence. Numerous power outages 

CALIFORNIA, Extreme Southeast 

CAZ031 Lower Colorado River Valley 


11 0500PST 

1600PST 

0 1 


Strong and gusty winds knocked over at least 2 big rigs on Interstate 10,forcing authorities to block off traffic for several hours. A 

driver of one truck suffered minor injuries, but was not hospitalized. 

CALIFORNIA, North Central 

CAZ067-069 Motherlode/Camptonville To Groveland - West Slope Northern Sierra Nevada 

09 0140PST 

0 0 


1100PST 

The first winter storm for many this winter season in the Northern Sierra Nevada was responsible for disrupting electrical power for 

1,300 PG&E customers. A mix of rain, wet snow, and ice severed power lines mainly in western Nevada County. The snow and ice 

also affected the morning commute disabling traffic along Highways 49, 20 and 174. The California Highway Patrol reported more 

than 30 non-injury accidents along these routes during the morning commute. 

CAZ015-017 Northern Sacramento Valley - Southern Sacramento Valley 

19 1200PST 

0 0 

Record Warmth 

22 1800PST 

Abnormal dry conditions, the lack of winter Tule fog, and an offshore flow produced record warmth across the Sacramento Valley. 

Afternoon high temperatures were 10 to 20 degrees above normal. High temperature records were set four consecutive days in Red 

Bluff, while records were set three out of four days in Redding and Sacramento. Red Bluff and Redding experienced the warmest 

temperatures on the 20th recording highs of 73 F. But the warmest temperatures valley-wide occurred on the 21st. High temperatures 

on the 21st included 72 at Redding, 71 at Red Bluff, 69 at Sacramento Executive Airport, and 66 in Downtown Sacramento. 

CAZ017 Southern Sacramento Valley 

CALIFORNIA, Northeast 

CAZ073 Mono 

CAZ073 Mono 

CAZ073 Mono 

CAZ073 Mono 

CAZ073 Mono 

CAZ073 Mono 

CALIFORNIA, Northwest 

CAZ001 Redwood Coast 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


20 0600PST 

1000PST 

0 2 120K 

Fog 

Dense fog was responsible for an 8 vehicle pile up on Highway 12 on Andrus Island in south Sacramento County. California 

Highway Patrol reported visibilities of 75 feet. Two big-rigs and 6 passenger vehicles were involved in the accident. 

07 0910PST 

0 

Wind sensor in Lee Vining recorded a wind gust of 58 mph. 

07 0945PST 

Mammoth Airport recorded a wind gust of 66mph. 

0 

0 

0 

0 

0 



07 1050PST 

0 0 0 


Spotter in Lee Vining reported wind gust to 62 mph. Winds sustained at 22 mph with much stronger gusts. 

13 0634PST 

0 0 

Spotter report of wind gust to 71 mph 5 miles North of Lee Vining. 

13 0751PST 

0 

Spotter report of wind gust to 67 mph recorded in Mono City. 

0 

0 

0 



19 0825PST 

0 0 5K 

High Wind 

High winds blew over two semis on U.S. Highway 395. A Union-76 gas station in Lee Vining had windows blown out and other 

damage. 

14 0730PST 

1 0 

Heavy Seas 

A crab boat outbound across the Humboldt Bay bar was struck by a rogue wave and sunk. Three crewmen were rescued by the Coast 

Guard. A fourth crewman, the boat owner, drown. The exact age of the owner was not available. M40BO 

14 10 

December 1999

CALIFORNIA, South Central 

CAZ020>021 

CAZ020 

CAZ020>021 

CAZ024>025 

CAZ020>024 

CAZ020>021 

CAZ020>021 

CAZ020>021 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


01 0001PST 

0 0 

Excessively Dry 

31 2359PST 

In Bakersfield (Southern San Joaquin Valley)...just 0.13 inches of rain fell tying with December in 1976 and 1903 as the 10th driest 

December on record. Six Decembers had no rainfall. In Fresno (Central SJV)... only 0.03 inches fell and it was the 3rd driest on 

record. The rainy season total had only 0.52 inches by the end of December which was the 3rd driest season start and eclipsed only 

by 1917 with 0.49" and 1929 with 0.51". Fresno has had only 6 years in which at least one inch of rain had not fallen by the end of 

December. Interior Central California mountain snow packs reflected the much below normal rainfall on the adjacent San Joaquin 

Valley floor. 

02 0500PST 

0830PST 

0 0 

Fog 

Dense Fog formed along the east side of the Central San Joaquin Valley around dawn with visibilties dropping to less than 1/4 mile 

from Merced to Fresno. 

03 0200PST 

0 0 

Frost 

08 0800PST 

The morning of the 3rd in the South San Joaquin Valley had the first "freezing" temperature of this episode with Wasco as the lone 

reported 32 degree F reading. For this cold episode of the 3rd through the morning of the 8th, the 4th was the coldest with numerous 

stations in the Central and South San Joaquin Valley below freezing including Arvin at 24F, Wasco, 25F, and Visalia and Merced at 

28 degrees F. For citrus crops... no substantial frost damage likely occurred. It was a little milder the mornings of the 5th through 

the 7th. On the 8th...Coldest citrus locations were in the 26-28 deg F range. Some readings included 26F at Arvin, 27F at Visalia 

and Wasco, 28F at Lemoore, Hanford, and Madera, and 27Fat Riverbend (Duration less than freezing of 7 hours and 1 hour at 27F). 

The first night likely for agriculture to protect its coldest locations occurred on the 4th and subsequently on the 8th. 

07 1405PST 

0 0 

Gusty Wind 

2345PST 

Relatively strong gradient wind over Interior Central California brought advisory level winds to broad areas of the Kern County 

Mountain and Desert areas. While desert wind was generally in the 35 to 41 knot range...Mojave did have very localized high 

west-northwest wind at 60 gusting to 80Kt at 1426 PST. Edwards AFB reported the peak wind for the day from the west at 34 knots 

at 1658 PST with China Lake at 43 knots from the west-southwest at 41 knots at 1453 PST. Mojave wind jumped from 10 knots 

gusting to 40 knots as early as 0847 PST. Mountain wind peaked later in the day at 2252 PST with reports of gusts to 43 knots from 

the NNW (Sandberg, CA). 

10 0600PST 

1200PST 

0 0 

Gusty Wind 

Lemoore NAS ASOS reported a northwest wind gust to 31 Knots at 1055 PST with blustery conditions over much of the remainder 

of Interior Central California. 

10 2300PST 

0 0 

Frost 

11 0900PST 

The west side of the Central and Southern San Joaquin Valley beneath clear skies went below freezing just below midnight on the 

10th and dropped eventually to the upper 20s close to dawn on the 11th. Coalinga dropped to 27 degs F. to verify the freeze warning 

with several locations at 28F for 3 to 4 hours. Along the east side many stations dipped to 29 to 31F as stratus persisted during the 

middle of the night before clearing before dawn. Madera dropped to 28F as the coldest location in the eastern zones. Any frost 

protection measures taken by agricultural were likely effective during this night. 

12 0100PST 

0800PST 

0 0 

Frost 

Overnight temperatures were seasonal in regard to the winter months but likely necessitating some protective measures by local citrus 

agriculture to protect in the colder locations on the morning of December 12th. Overnight low temperatures: Merced 29F, Madera 

31F, Coalinga 25F, Fresno 30F, Lemoore 27F, Hanford 29F, Visalia 28F, Porterville 28F, and Bakersfield 31F. 

14 0200PST 

0730PST 

0 0 

Frost 

The Central and north portions of the Southern San Joaquin Valley were rather cool overnight causing local concern to agriculture. 

Observed low temperatures: Merced 28F, Madera 28F, Fresno 32F, Lemoore 30F, Hanford 30F, Visalia 28F, and Coalinga 28F. 

The southern portion of the South Valley remained above freezing due to residual cloudiness. 

15 11 

December 1999

CALIFORNIA, South Central 

CAZ020>021 

CAZ020>021 

CAZ020>021 

CAZ020 

CALIFORNIA, Southeast 

15 0030PST 

0830PST 

0 0 

Frost 

Overnight low temperatures likely adversely affected colder locations within the ag area. Observed overnight lows: Merced 29F, 

Madera 31F, Fresno 32F, Lemoore 27F, Hanford 29F, Visalia 28F, Coalinga 31F, Porterville 27F, Delano 28F, Arvin 33F, and 

Bakersfield 33F. 

16 0200PST 

0 0 

Frost 

30 0800PST 

With persistent high pressure and the resulting much drier than normal conditions over Central Interior California, overnight 

minimum temperatures, with only a couple of mornings as exception, continued near and below freezing for an extended period of 

time through the remainder of the month of December. While minimum temperatures did drop low enough to cause concern and 

some protection measures among area citrus growers, only the very coldest grove locations likely needed extensive protection. 

Overnight minimums during the period for both the Central and Southern San Joaquin Valley ranged from the 26 to 36 degree F 

range. The morning of the 16th was apparently the coldest for the period of the 16th - 30th. Temperature durations up to 9 hours 

below freezing at the coldest locations were reported and a number of the locations dropping as low as 26 deg F. 

18 0030PST 

1000PST 

0 0 

Fog 

Several areas in the Central and Southern San Joaquin Valley experienced dense fog this morning with reported visibilities from less 

than 1/4 mile to zero. Areas impacted included Merced County southward through Kings and Tulare Counties. 

19 0500PST 

0830PST 

0 0 

Locally dense fog developed with visibilities less than 1/4 mile around Fresno. 


CALIFORNIA, Southwest 

CAZ048>049-057 San Bernardino County Valley/The Inland Empire - Riverside County Valley/The Inland Empire - 

Santa Ana Mountains And Foothills 

03 0334PST 

0 0 210K 


04 1300PST 

The strongest Santa Ana wind event of this year began in the early morning hours of December 3 and continued into the afternoon of 

December 4. Ten power poles were knocked down in Northwest San Bernardino, just below the Cajon Pass. Power lines were also 

blown down in Muscoy, Rialto, Fontana, Murrieta, and Lake Elsinore. Two elementary schools were closed due to the downed power 

lines. Most of the major highways in the Inland Empire and through the Santa Ana Mountains were closed, partially due to two 

semi-tractor trailers that overturned, partially from blowing dust reducing visibility, and partially from road signs and other debris 

being blown onto the roads. Two barns were destroyed when their roofs were lifted off and six horses received minor injuries. 

CAZ043 San Diego County Coasts 

CAZ048>049-057- 

061 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


06 1350PST 

1 0 150K 

Heavy Surf 

1800PST 

A kneeboarder was overpowered by 8 to 10 foot waves off Sunset Cliffs Park. Efforts to revive him were unsuccessful and he was 

pronounced dead about 2 hours later. A 32 foot commercial fishing boat was swamped 20 miles southwest of Point Loma by large 

swells, the 2 man crew and a U. S. Coast Guard rescue team were forced to abandon the craft a few moments before it overturned 

and sank around 6 p.m. M42IW 

San Bernardino County Valley/The Inland Empire - Riverside County Valley/The Inland Empire - 

Santa Ana Mountains And Foothills - Coachella Valley 

10 2300PST 

0 1 50K 10K High Wind (G55) 

11 1300PST 

Power lines, traffic signs, and outdoor Christmas decorations were blown down, a semi-tractor trailer overturned; blowing dust and 

sand caused poor visibilities and forced road closures and the cancellation of outdoor events. Several trees were knocked over and 

broken tree limbs littered roadways. 

CAZ050 San Diego County Valleys 

12 0000PST 

0 1 

13 1530PST 

A 35 year old male was found suffering from hypothermia east of the Otay Mesa area. 

16 12 

Fog 

Extreme Cold 

December 1999


CAZ048-057 San Bernardino County Valley/The Inland Empire - Santa Ana Mountains And Foothills 

San Diego County 

5 NW Campo 21 1700PST 

22 1300PST 

CAZ042-048>050- 

056>058 

19 0930PST 

0 0 12K 


20 0130PST 

High winds toppled an 80 foot-tall tree onto a house in Ontario. Elsewhere in Ontario and Upland, windows were broken and outdoor 

signs damaged. 

21 

22 

2000PST 

1900PST 

0 

0 

0 

2 

227K 

Wild/Forest Fire 

Orange County Coastal Plain - San Bernardino County Valley/The Inland Empire - Riverside 

County Valley/The Inland Empire - San Diego County Valleys - Riverside County Mountains - 

Santa Ana Mountains And Foothills - San Diego County Mountains 

CAZ049 Riverside County Valley/The Inland Empire 


Cardiff By The Sea 

to 

Imperial Beach 


Cardiff By The Sea 

to 


Orange County 


22 0840PST 

0 0 

Dust Storm 

1455PST 

Strong Santa Ana winds hit Southwestern California on the evening of 12/21 and lasted through most of the following day. 

Widespread power and phone outages occurred from falling trees knocking down lines and snapped poles. A large dust cloud over the 

San Jacinto Valley closed highways, sand blasted cars, and reached a height of 500 feet. Blowing sand, dirt and cross winds at 

Ontario International Airport forced the diversion of two commercial airline flights and the cancellation of three others. Gusty winds 

also spread a house fire in Glendale to an adjacent house causing two injuries and $50,000 damage. Wind gusts between 35 and 53 

mph were observed at Newport Beach and Huntington Beach. Firefighters had difficulty controlling three wildfires in San Diego 

County due to the strong wind gusts. 

22 

23 

0600PST 

1000PST 

0700PST 

1100PST 

0 

0 

0 

0 

Storm Surge 

Storm Surge 

The highest spring tides of the year occurred between 8 and 9 a.m. these two days. Cobblestones, sand, and other debris were 

deposited onto Highway 101 and in the parking lots of restaurants near the mouth of San Elijo Lagoon. Waves were breaking over sea 

walls, jetties, and other alongshore coastal structures around Point La Jolla. In Imperial Beach debris was washed on to Cortez 

Street.No damage to property was reported, but debris removal and road cleanup costs were estimated at $20,000. 

2 NE Mission Viejo 27 1600PST 

2030PST 

0 0 


Dry conditions and gusty Santa Ana winds fanned a wild fire into a 38 acre blaze before being brought under control by more than 

100 firefighters. 


Oceanside 31 1504PST 

Orange County 

Costa Mesa to 31 1523PST 

Newport Beach 

1524PST 

Orange County 

Santa Ana 31 1524PST 

1531PST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


CALIFORNIA, Upper 

CAZ082-082 South Central Siskiyou County 

0 

0 

0 

0 

0 

0 

Funnel Cloud 

Waterspout 

Funnel Cloud 

09 1328PST 

0 0 

Heavy Snow 

2000PST 

Spotter SY49 northeast of Mt. Shasta City reported 5 inches of new snow. 

A Heavy Snow Warning was issued for the Mt. Shasta City area (CAZ082) at 1649 PST on 12/8 and cancelled at 0924 PST on 12/9. 

The criteria for heavy snow in that zone is 5" in 12 hours or 7" in 24 hours. 

This appears to have verified. 

17 13 

December 1999

CALIFORNIA, West South Central 

CAZ039-044>047- 

052>054 

Ventura County 

Santa Barbara County South Coast - Ventura County Interior Valleys - Ventura County Coastal 

Valleys - Santa Monica Mountains Recreation Area - Los Angeles County Valleys - Santa Barbara 

County Mountains - Ventura County Mountains - Los Angeles County Mountains Excluding The 

Santa Monica Range 

02 1730PST 

0 0 


03 1800PST 

Strong offshore winds developed across Southern California. The winds gusted up to 77 MPH. There were numerous reports of trees 

and power lines blown down. In Santa Clarita, the winds knocked over a 60 foot tree onto the Sheriff's station. In Chatsworth, a semi 

truck was blown over. 

4 N Somis 04 0200PST 

0 2 


05 1800PST 

Strong Santa Ana winds fueled a brush fire in Ventura county. The Somis Fire burned 3,332 acres of land. Two firefighters were 

injured battling the fire. 


2 N Ojai 21 2000PST 

0 0 


27 1800PST 

Strong Santa Ana winds fueled a brush fire in Ventura county. The Ranch Fire burned 4,371 acres of land near the community of 

Ojai. No injuries were reported, but the fire did destroy one home. 

Los Angeles 

County 

5 N La Canada 21 2145PST 

0 0 


23 1800PST 

Strong Santa Ana winds fueled a brush fire in Los Angeles county, north of La Canada. The Rafael Fire burned 524 acres. No injuries 

were reported. 


3 N Seacliff 22 0115PST 

2100PST 

0 0 


Santa Ana winds fueled a brush fire in Ventura county, north of Seacliff. The Rincon Fire burned around 300 acres. No injuries were 

reported. 

Los Angeles 

County 

4 N Arcadia 27 1445PST 

0 1 


30 1800PST 

Strong Santa Ana wind fueled a brush fire in Los Angeles county, north of Arcadia. The Santa Anita Fire burned about 750 acres. 

One firefighter was injured. 

Santa Barbara 

County 

1 S Santa Barbara 31 1100PST 

1110PST 

0 0 

A weather spotter reported two funnel clouds, just south of Santa Barbara. 

CALIFORNIA, Western 

CAZ007-007 Alameda / Contra Costa Counties 

COLORADO, Central and Northeast 

COZ034-036- 

040>041 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


Waterspout 

21 0936PST 

0 0 125K 


22 1000PST 

A strong high pressure inland and a low offshore created strong neasterly downslope wind in the Oakland and Contra Costa Co. hills. 

A strong offshore gradient created high downslope winds in the Oakland hills area. A number of large tress were downed and power 

was lost for 10,000 people. 

Summit County/Mosquito Range/Indian Peaks - Southern Front Range Foothills/Clear Creek 

Basin - Denver Metropolitan Area - Eastern Douglas And Western Elbert Counties/Castle Rock 

And Vicinity 

03 1200MST 

0 0 0 0 Heavy Snow 

04 0800MST 

Heavy snow fell over portions of the Front Range Foothills and Urban Corridor. The heaviest snowfall occurred in the foothills south 

of Interstate 70 and along the Palmer Divide. Snowfall totals included: 25 inches, 7 miles south of Tiny Town, 18 inches at 

18 14 

December 1999


Conifer, 16 inches at Larkspur, 15 inches, 8 miles northwest of Evergreen, 14 inches at Chief Hosa, 8 miles west of Castle Rock and 

3 miles north of Blackhawk, 12 inches at Pine Junction and 8 miles south of Sedalia, 11 inches at Floyd Hill and Roxbourgh, 10 

inches at Castle Rock, with lesser amounts from 5 to 8 inches reported elsewhere. 

COZ037 South Park 

COZ033-035>036- 

039 

Around the Denver Metropolitan area, snowfall totals included: 10 inches at Highlands Ranch, 9 inches at Parker, with 8 inches 

reported at Aurora and Wheat Ridge. Elsewhere around the metro area, snowfall generally ranged from 3 to 5 inches. 

08 

0000MST 

1800MST 

0 

0 

Heavy Snow 

Heavy snow fell over portions of South Park. A spotter 3 miles north of Alma reported 16 inches of fresh snowfall. In and around 

Fairplay, snow amounts ranged from 8 to 10 inches. 

Rabbit Ears & Medicine Bow Ranges/Rocky Mountain National Park - Northern Front Range 

Foothills/Upper Laramie And Cache La Poudre River Basins - Southern Front Range 

Foothills/Clear Creek Basin - Eastern Boulder County/Boulder And Vicinity 

15 0200MST 

0 0 

0 High Wind (G108) 

1500MST 

High winds developed in and near the Front Range Foothills as a strong upper level jet moved into the area. Although wind gusts 

were generally in the 70 mph to 80 mph range; a spotter located 1 mile south of Fritz Peak, near Rollinsville, measured a peak wind 

gust to 124 mph (108 kts). Other wind reports included: 77 mph (67 kts) at the NCAR Mesa Lab and atop Blue Mountain, 75 mph 

(65 kts) at Allenspark and 70 mph (61 kts) at the National Wind Technology Center. 

COZ033-035-039 Rabbit Ears & Medicine Bow Ranges/Rocky Mountain National Park - Northern Front Range 

Foothills/Upper Laramie And Cache La Poudre River Basins - Eastern Boulder County/Boulder 

And Vicinity 

16 0100MST 

0830MST 

0 0 

0 High Wind (G72) 

Another brief round of high winds developed in and near the foothills of Boulder County. Peak wind gusts included 83 mph (72 kts) 

at NCAR Mesa Lab, and 74 mph (64 kts) atop Niwot Ridge and at the National Wind Technology Center. 

COZ035>036 Northern Front Range Foothills/Upper Laramie And Cache La Poudre River Basins - Southern 

Front Range Foothills/Clear Creek Basin 

18 1145MST 

1400MST 

0 0 0 0 High Wind (G62) 

Strong winds blew for a brief period in the Front Range Foothills. Golden Gate Canyon registered a peak wind gust to 72 mph (62 

kts) while the NCAR Mesa Lab, in the foothills southwest of Boulder, reported a peak wind gust of 71 mph (61 kts). 

COZ033>034 Rabbit Ears & Medicine Bow Ranges/Rocky Mountain National Park - Summit County/Mosquito 

Range/Indian Peaks 

COLORADO, East Central 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


18 1600MST 


19 1200MST 

Heavy snow fell over portions of the northern mountains. Winter Park reported 10 inches of snow while the Eisenhower Tunnel 

registered 8 inches of new snow. 


19 15 

0 

0 

December 1999

COLORADO, South Central and Southeast 

COZ065>068- 

070>072-074>077- 

079>081 

COZ067-069- 

071>072 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


Northern Sangre De Cristo Mountains - Southern Sangre De Cristo Mountains - Teller 

County/Rampart Range/Pikes Peak - Western Fremont And Northern Custer Counties - Wet 

Mountains - Southern El Paso County/Colorado Springs And Vicinity - Northern El Paso 

County/Monument Ridge - Upper Huerfano River Basin/Walsenburg And Vicinity - Upper 

Purgatoire River Basin/Trinidad And Vicinity - Crowley And Otero Counties/La Junta And 

Vicinity - Eastern Las Animas County - Bent County/Las Animas And Vicinity - Prowers 

County/Lamar And Vicinity - Baca County/Springfield And Vicinity 

03 

04 

0500MST 

1300MST 

0 

0 


An intense winter storm moved from northwest New Mexico the morning of December 3rd into the Texas Panhandle by the morning 

of December 4th. It produced some incredible snow totals. In addition to the snow, north to northeast winds, gusting over 30 mph, 

caused low visibility and very hazardous driving conditions. One of the incredible snow totals occurred at Cuchara in southwest 

Huerfano county where 61 inches of snow was noted from 9:00 a.m. on December 3rd to noon on December 4th. Four to 5 feet of 

snow fell at the Cuchara Ski Resort in approximately 24 hours. Elsewhere in Huerfano county, 40 inches of snow was reported 

around Red Wing, and 13 inches of the white stuff accumulated at Walsenburg. In extreme southwest Pueblo county, Rye was 

graced with up to 34 inches of snow while Beulah tallied 16 inches of snow. In Las Animas county, a site 18 miles west-southwest of 

Aguilar reported 28 inches of snow. Twelve inches of snow was observed at Aguilar...7 inches was noted 4 miles north of Tobe...5 

inches fell at Trinidad and 4 inches was measured at Kim. In Custer county, 12 to 24 inches of snow occurred in the vicinity of 

Westcliffe with 16 inches covering Rosita. In Costilla county, 14 inches of snow was noted 4 miles east of Fort Garland. In Fremont 

county, 5 inches of snow accumulated at Coaldale. In Teller county, 20 inches of snow graced the community of Woodland Park 

while 9 inches was measured at Divide. In El Paso county, 12 inches of snow was measured at Monument...up to 11 inches in the 

Black Forest region...6 inches at the Air Force Academy and 4 to 6 inches in the western sections of Colorado Springs. In Otero 

county, 10 inches of snow graced Timpas. In southwest Bent county, 8 inches of snow was measured. In extreme southwest Prowers 

county, 5 inches of snow was noted. Finally, in Baca county...5 inches of snow occurred 20 miles northwest of Springfield, while at 

Springfield, 4 inches was noted. 

Teller County/Rampart Range/Pikes Peak - Upper Arkansas River Valley/Salida And Vicinity - 

Southern El Paso County/Colorado Springs And Vicinity - Northern El Paso County/Monument 

Ridge 

08 0500MST 

0 0 


1600MST 

A winter storm moved across northern New Mexico, generating areas of heavy snow across sections of southern Colorado. Some of 

the heavier snow totals in El Paso county included 8 inches at Green Mountain Falls...7 inches just west of downtown Colorado 

Springs...6 inches at both Manitou Springs and Palmer Lake and up to 5 inches in the vicinity of Monument. In Teller county, the 

Woodland Park area received up to 6 inches of snow while the Buena Vista area in eastern Chaffee county accumulated 4 inches of 

snow. 

COZ058>059 Leadville And Vicinity - W Lake / W Chaffee County 

13 0500MST 

2300MST 

0 0 

Heavy Snow 

A quick moving upper level system brought over 4 inches of snow to the mountains of Lake county and the Collegiate Range and 

Continental Divide area of western Chaffee county. 

COZ074 Upper Huerfano River Basin/Walsenburg And Vicinity 

14 

0300MST 

0600MST 

0 

0 

Heavy Snow 

A quickly moving upper level system produced 8 inches of snow in 3 hours in the foothills 15 to 20 miles southwest of Walsenburg in 

Huerfano county. 

COZ076>081 Crowley And Otero Counties/La Junta And Vicinity - Eastern Las Animas County - Kiowa County 

- Bent County/Las Animas And Vicinity - Prowers County/Lamar And Vicinity - Baca 

County/Springfield And Vicinity 

14 0400MST 

0 0 20K 


1200MST 

A quick moving upper level system brought a high wind event to the southeast plains of Colorado. Sustained winds over 40 mph 

buffetted the area for several hours, from early morning to midday. At 5:45 a.m. an empty semi-trailer truck was blown on its side in 

far eastern Prowers county near the Kansas border. The driver was not injured. In this entry, High Winds (G41) really is sustained 

over 40 mph winds. 

20 16 

December 1999

COLORADO, South Central and Southeast 

COZ058 Leadville And Vicinity 

COZ065>066-068- 

070 

18 1700MST 

0 0 

Heavy Snow 

19 0500MST 

An upper level system moved through the Rocky Mountain Region bringing a prolonged period of snow to Lake county. Six to 

almost 8 inches of snow fell throughout the county. The snow was blown and drifted by strong west winds, making for hazardous 

travel. 

Northern Sangre De Cristo Mountains - Southern Sangre De Cristo Mountains - Western Fremont 

And Northern Custer Counties - Wet Mountains 

21 1400MST 

0 0 


2300MST 

An upper level disturbance moving south through eastern Utah in combination with a cold front pushing south through southern 

Colorado caused periods of heavy snow and gusty winds. The heaviest snow was noted at Cuchara with 10 inches. Other locations 

receiving heavy snow were San Isabel in Pueblo county, which received 6 inches...La Veta Pass with 3 to 6 inches of 

snow...Westcliffe in Custer county with 4 inches...Beulah in Pueblo County with 3 inches, and 5 miles north of Canon City in 

Fremont county...also with 3 inches of snow. 

COLORADO, West 

COZ004>005- Elkhead And Park Mountains/Flat Tops/White River Plateau - Upper Yampa River 

009>010-012-018 Basin/Steamboat Springs And Vicinity - Grand And Battlement Mesas - Gore And Elk 

Mountains/Central Mountain Valleys/Aspen And Vicinity - West Elk And Sawatch 

Mountains/Taylor Park - Northwestern San Juan Mountains 

13 0900MST 

0 0 

Heavy Snow 

14 0200MST 

A fast moving Pacific trough generally deposited 6 to 10 inches of new snow in many mountain areas of western Colorado, as well as 

the upper Yampa River Basin. Higher reported amounts included 18 inches at Steamboat Springs Ski Area and 11 inches at Pyramid 

(in northeast Rio Blanco County). 

COZ002>005-010 Central Yampa River Basin/Craig-Hayden And Vicinity - Roan And Tavaputs Plateaus - Elkhead 

And Park Mountains/Flat Tops/White River Plateau - Upper Yampa River Basin/Steamboat 

CONNECTICUT, Northeast 

CTZ002 Hartford 

Springs And Vicinity - Gore And Elk Mountains/Central Mountain Valleys/Aspen And Vicinity 

19 0900MST 

0 0 

Heavy Snow 

21 1200MST 

A persistent moist northwest flow resulted in 8 to 16 inches of new snow over many mountain areas of northwest Colorado. Some 

lower elevation areas in northwest Colorado received 5 to 10 inches of new snow. The heaviest reported amounts include 28 inches 

at Vail Ski Area, 26 inches at Steamboat Springs Ski Area, and 17 inches at Pine Springs Ranch. 

11 1100EST 

1500EST 

0 0 

Strong Wind 

An intensifying low pressure system in the Gulf of Maine brought strong northwest winds to parts of northern Connecticut. Wind 

gusts of 40 to 50 mph were common from late morning into mid afternoon. In Hartford County, the strong winds downed an isolated 

tree in Canton. 

CTZ002>004 Hartford - Tolland - Windham 

CONNECTICUT, Northwest 

20 0900EST 

0 0 

Freezing Rain 

2000EST 

Light freezing rain fell in the deeper valleys of northern Connecticut, as rain fell into a shallow layer of below freezing air at the 

surface. The resultant light coating of ice formed "black ice" on many roadways, which caused many accidents. It was estimated that 

there were nearly one hundred accidents, mostly fender benders, throughout Hartford, Tolland, and Windham Counties as a result of 

the slick driving conditions. 


CONNECTICUT, Southern 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



21 17 

December 1999

DELAWARE 

DEZ001 New Castle 

Kent County 

Countywide 13 1200EST 

14 1500EST 

New Castle 

County 

10 1900EST 

0 0 

Wind 

11 0700EST 

A strong cold front moved through Delaware during the early evening of the 10th. The front was accompanied by strong gusty 

northwest winds. As a low pressure system intensified as it moved across northern New England into the Canadian Maritimes and a 

large high pressure system built east from the Northern Plains and the Great Lakes, gusty northwest winds continued throughout 

most of the night. The strongest gusts were in the northern part of the state. Peak wind gusts included 45 mph at the New Castle 

County Airport and 30 mph in Georgetown (Sussex County). 

0 

0 

Heavy Rain 

Coochs Bridge 14 1345EST 

0 0 

Flood 

1800EST 

A slow moving low pressure system moved northeast from southern Texas the morning of the 12th into southern Mississippi the 

morning of the 13th and into West Virginia the morning of the 14th. A second low pressure system formed near the Delmarva 

Peninsula during the day on the 14th and moved well offshore that night. The slow movement by the low gave the region about 24 

hours of steady rain from around noon on the 13th into the early afternoon of the 14th. The heaviest rain (about two-thirds of the 

storm total) fell during the morning and early afternoon of the 14th. The highest storm totals were in the northern half of the state. 

Storm totals ranged from around an inch in Sussex County to nearly two inches in New Castle County. The heavy rain caused 

flooding along the Christina River. At Coochs Bridge, the Christina River reached its 9 foot flood stage at 145 p.m. EST on the 14th, 

crested at 9.8 feet at 3 p.m. EST on the 14th and was back within bankfull at 6 p.m. EST on the 14th. Elsewhere, some urban and 

poor drainage flooding occurred, but no other problems were reported. Storm totals included 1.80 inches in Newark (New Castle 

County), 1.60 inches at the New Castle County Airport, 1.40 inches in Dover (Kent County) and 1.05 inches in Georgetown (Sussex 

County). 

DISTRICT OF COLUMBIA 

FLORIDA, East Central 



FLORIDA, Extreme Southern 

Monroe County 

Marathon 06 1355EST 

1404EST 

0 0 

Waterspout observed 1 mile southeast of Sombrero Key lighthouse 

FLORIDA, Northeastern 

FLORIDA, Northwest 

FLORIDA, Southern 

Palm Beach 

County 

14 SE (Pbi)Palm 

Beach Arpt 

Dade County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 




01 

1652EST 

A pilot of a small plane sighted a waterspout in the Atlantic. 

10 E Miami Beach 11 0935EST 

0 0 

A pilot reported several waterspouts in the Atlantic east of Miami Beach. 

22 18 

0 

0 

Waterspout 

Waterspout 

Waterspout 

December 1999

FLORIDA, Southern 

Palm Beach 

County 

2 E Jupiter Inlet 

Colony 

Palm Beach 

County 

11 

1723EST 

The public reported a waterspout in the Atlantic east of Jupiter Inlet. 

Lake Worth 17 1635EST 

The sheriff reported three funnel clouds. 

Palm Beach 

County 

5 SE (Pbi)Palm 

Beach Arpt 

Palm Beach 

County 

17 

1648EST 

Two waterspouts were sighted in the Atlantic just offshore Palm Beach. 

2 E Boca Raton 20 0938EST 

The public sighted a waterspout in the Atlantic. 

FLORIDA, West Central 

Levy County 

0 

0 

0 

0 

0 

0 

0 

0 

Waterspout 

Funnel Cloud 

Waterspout 

Waterspout 

Chiefland to 01 0500EST 

0 0 0 0 Freeze 

Williston 

0900EST 

Temperatures dropped below freezing for two to four hours over mainly interior portions of Levy county. 

Levy County 

Chiefland to 02 0300EST 

0 0 0 0 

Williston 

0900EST 

Citrus County 

Crystal River to 02 0330EST 

0 0 0 0 

Floral City 

0830EST 

Sumter County 


0830EST 

0 0 0 0 

Hernando County 

Spring Hill to 02 0400EST 

0 0 0 0 

Croom 

0830EST 

Pasco County 

Pasco to 02 0400EST 

0 0 0 0 Freeze 

Zephyrhills 

0800EST 

Freezing temperatures were observed over parts of West Central Florida during the predawn hours of December 2nd, 1999. 

FLZ039-042>043- 

048>049 

FLZ050>052- 

055>057-060>062- 

065 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


Freeze 

Freeze 

Freeze 

Freeze 

Low temperatures dropped into the lower 20s in the northern portion and the middle 20s over the southern portion of Levy county . 

Temperatures remained below freezing from four to sixs hours over Levy county, mainly east of the U.S. Highway 19 corridor. 

In Citrus and Sumter counties, low temperatures dropped into the middle 20s and remained below freezing for up to five hours. 

In Hernando and Pasco counties, low temperatures dropped into the middle 20s to around 30 and remained below freezing for up to 

four hours. 

Levy - Citrus - Sumter - Hernando - Pasco 

09 0600EST 

0900EST 

0 0 0 0 Fog 

Areas of dense fog occasionally reduced visibilities to less than a quarter mile along and east of the U.S. Highway 19 corridor. 

Pinellas - Hillsborough - Polk - Manatee - Hardee - Highlands - Sarasota - De Soto - Charlotte - 

Lee 

11 

0300EST 

0900EST 

23 19 

0 

0 

0 

0 

Fog 

December 1999

FLORIDA, West Central 

Widespread areas of dense fog reduced visibilities to less than a quarter mile south of a New Port Richey to Polk City line. 

FLORIDA, West Panhandle 

GEORGIA, East Central 

GEORGIA, Lower 




GEORGIA, North and Central 


GEORGIA, Northeast 

GAZ018-026- Stephens - Franklin - Hart - Elbert 

028>029 

GEORGIA, Southeast 

GEORGIA, Southwest 

GEORGIA, West Central 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


13 1900EST 

0 

14 0800EST 

Dense fog blanketed the area causing some traffic accidents. 




HAWAII 

HIZ007>008 West Hawaii Including Leeward Kohala And Kona - South Hawaii Including Kau 

0 

01 0000HST 

0 0 

Drought 

31 2359HST 

Wet weather was prevalent over much of the Aloha State in December as two upper-air lows affected the region. However, parts of 

southern and western areas of the island of Hawaii remained dry through the month and are still in drought conditions. 

Island of Hawaii 

Despite heavy rains on the windward side of the isle, leeward areas were relatively dry. Gages in Kona and leeward Kohala were 

mostly within the 30 to 60 percent of average range for the month. 

For the year, 3 out of 17 available gages reported 1999 rainfall above average (Mt. View, 106 percent; Glenwood, 121 percent; and 

Kamuela Upper, 104 percent). Just seven miles away from Kamuela Upper is the gage at Kamakoa, the driest site for 1999 at 3.90 

inches, or 23 percent of average. The remaining windward gages were mainly in the 75 to 100 percent of average range. Gages in 

the Kau District were mostly in the 40 to 60 percent of average range for the year. 

The following list contains rainfall statistics for selected locations from the island of Hawaii. The first column is the observed rainfall 

for December. The second column is the 30-year average for that location, while the third column lists the percent of average rainfall 

for the month. The fourth and fifth columns are the year-to-date total and the percent of average, respectively. 

YTD 

Dec 99 Avg. %Avg. YTD %Avg. 

Island of Hawaii 

Hilo Airport 14.41 12.00 120 116.77 90 

Pahala 10.21 5.40 189 28.39 52 

Honaunau 1.24 3.10 40 32.30 50 

Kamuela (Upper) 4.14 6.00 69 60.05 104 

24 20 

Fog 

December 1999

HAWAII 

Hawaii County 

Honokaa to 01 1150HST 

Pahoa 

1500HST 

Hawaii County 

Ookala to 01 1500HST 

Pahoa 

1710HST 

Hawaii County 

Keaau to 01 2015HST 

Pahoa 

2200HST 

Maui County 

Pauwela to 01 2115HST 

Hana 

02 0000HST 

Maui County 

Glenwood 29.72 17.20 173 200.41 121 

Laupahoehoe 16.16 14.80 109 107.70 72 

Kamakoa 0.70 2.10 33 3.90 23 

Kapapala 15.28 7.70 198 38.25 57 

Many farmers, ranchers, and residents remained water-starved through December. However,state agricultural officials have not put a 

dollar amount on the drought's effects on Hawaii's farms and ranches, said Donald Martin, state agricultural statistician. Even if they 

tried, the true costs will continue long after the drought ends, he said. "We may have ample rainfall next year, but smaller herds and 

crops means we'll still be feeling the effects many years down the road," Martin said. 

Although Kau gages, as noted above, showed rainfall in the 40 to 60 percent of average range for the year; no rain gages are present 

in the area hardest hit in Kau. Two subdivisions near the southern point of the island, Hawaiian Ocean View Estates and the nearby 

Hawaiian Ranchos, have not had significant rainfall for three years, said Hawaii County Civil Defense Administrator Harry Kim. 

Because those subdivisions lack county water, their residents must pay to have water trucked in or take containers to a county spigot 

miles away for daily living requirements. He said with drinking and cooking the top priorities, for most residents in the area a car 

wash is but a distant memory. 

0 

0 

0 

0 

0 

0 

0 

0 

Flood 

Flood 

Flood 


Maui 01 2130HST 

2300HST 

0 0 

Lightning 

Lightning strikes knocked out power and damaged telephone and computer systems at summit observatories on Haleakala. The 

observatories included the Air Force's Maui Space Surveillance Complex and several University of Hawaii sites. No damage 

estimates were available. 

Hawaii County 


Pahoa 

02 0330HST 

Honolulu County 

Makaha to 02 0115HST 

Wahiawa 

0400HST 

Hawaii County 

Keaau to 02 0330HST 

Naalehu 

0500HST 


Wahiawa to 02 0400HST 

Honolulu 

0700HST 

Hawaii County 


Naalehu 

0545HST 

Hawaii County 


Naalehu 

1545HST 

Kauai County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Flood 


Flood 


Hanalei to 02 1120HST 

0 0 


Kilauea 

1400HST 

To put the events of 1 and 2 December into perspective, an upper-air low over the state destabilized the atmosphere, causing heavy 

rainfall, hail, snow, and periods of lightning. The most significant problem to occur on Oahu was the overflowing of the Lake Wilson 

dam near Wahiawa in the early morning hours of 2 December. This sent a torrent into Kaukonahua Stream, which rose past its banks 

and sent as much as four feet of water into yards downstream. Twenty homes were affected by the flood, with fifty residents having 

25 21 

Flood 

Flood 

December 1999

HAWAII 

Maui County 

to be evacuated for a time from the Otake Camp section of Waialua. 

Torrential rains caused Waiawa Stream in lower Pearl City to overflow, and fire crews used a raft to reach five stranded residents in a 

three-story apartment building off Lehua Avenue in the early hours of 2 December. 

The upper low also dropped small hail on the upper slopes of Haleakala in Maui in the morning hours of 2 December. Icy conditions 

on the main road to the summit caused park officials to close it near the 7000-foot level from 4:40 AM to 8:00 AM. 

The storm left unusually deep snow on Mauna Kea on the island of Hawaii on 2 December, extending to as low as Hale Pohaku at the 

9600-foot elevation. Drifts were as deep as two feet along the road to the 13,796-foot summit. 

In summary, several parts of Oahu and the island of Hawaii had 24-hour rainfall totals of more than five inches, and an upper Nuuanu 

site on Oahu exceeded seven inches for the 24-hour period ending 8 AM on 2 December. Heavy rain in Kauai's central mountains 

raised the level of the Hanalei River, but it did not get to flood stage. Ponding of roads, minor rock- and landslides, and isolated 

power outages were common for the early days of December in Kauai, Oahu, Maui, and the island of Hawaii. 

Haiku 03 1700HST 

1950HST 

0 0 


Heavy showers caused severe road ponding on streets in the Haiku area and a rockslide onto Haiku Road. 

HIZ001>007 Kauai - Oahu - Maui - North And East Hawaii Including Windward Kohala / Hamakua / Hilo / 

Puna - Molokai - Lanai - West Hawaii Including Leeward Kohala And Kona 

03 1700HST 

0 0 

High Surf 

06 0200HST 

A deep storm low far northwest of the state generated surf of 20 to 25 feet along north shores and 8 to 15 feet on west shores across 

the island chain. Fifty people were rescued from the waves by lifeguards on Oahu, with no major injuries reported. Also on Oahu, 

all north-shore beaches, and Keawaula Beach just north of Makaha on the west side, were closed for a time because of the 

dangerously high surf. 



Hawaii County 


Pahoa 

1400HST 

Hawaii County 


Naalehu 

0700HST 

Hawaii County 


Hilo 

0840HST 

Hawaii County 


Mountain View 

1000HST 

Hawaii County 

07 1000HST 

0 0 

High Surf 

09 0730HST 

Storm low far northwest of the state produced surf of 10 to 15 feet on north shores and 6 to 10 feet along west shores across the 

Hawaiian Islands. 


0 0 

Flood 

Naalehu 

2100HST 

Honolii Beach in Hilo was closed for a time due to the Wailuku River raging after heavy downpours. 

Kauai County 

Hanalei to 10 1335HST 

0 0 


Kilauea 

2300HST 

Police reported water overflowing the Wainiha Bridge in northern Kauai at 1:35 PM, 1 hour and 20 minutes after the Lihue weather 

office had issued an urban and small stream flood advisory for the northern parts of Kauai. 


Waialua to 10 1400HST 

Waimanalo 

11 0200HST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


26 22 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Flood 

Flood 

Flood 

Flood 


December 1999

HAWAII 

Kauai County 

Kauai 10 2300HST 

11 0200HST 

Hawaii County 


Naalehu 

0720HST 

0 

0 

0 

0 




Hawaii County 


Naalehu 

12 0100HST 

Kauai County 

11 0200HST 

0 0 

High Surf 

12 1300HST 

Storm low well northwest of the state caused surf of 10 to 15 feet along the north shores and 6 to 10 feet on the west shores of all the 

islands. 

0 

0 

Flood 

Flash Flood 

Mana to 12 0830HST 

0 0 


Koloa 

1100HST 

Another upper-level low affected the Hawaiian Islands from 9 to 12 December, producing heavy rain over much of the state. The 

most significant rainfall occurred on Kauai, Oahu, and the island of Hawaii. Important, though not excessive, precipitation fell on 

Lanai as well. 

A brief, heavy downpour on Oahu in the midafternoon of 10 December swept a 14-year-old boy down a Waipahu drainage canal for 

perhaps a quarter-mile. Fortunately, the boy was pulled from the water by a passer-by. Early on 11 December, Waimea Bay and 

other North Shore beaches on Oahu were closed due to debris from the overflowing Waimea River and rising surf. 

Showers that hit Lanai about noon on 10 December helped extinguish a 2000-acre brush fire that had been burning for about 24 hours 

a mile south of Lanai City. 

In Hilo on the island of Hawaii, Kamehameha Avenue, from the Wailoa River to Mamo Street, was closed from 10 through 12 

December because of flooding from excessive storm runoff. 

All in all, 10 to 18 inches of rain fell on many southeastern and windward sections of the island of Hawaii over the three-day period 

of 9 to 12 December. The other isles received totals in the 3- to 5-inch range. As was the case in early December, this storm event 

caused occasional ponding of roadways, minor rock- and landslides, and isolated power outages throughout the island chain. 



19 0500HST 

0 0 

High Surf 

20 0500HST 

Storm low northwest of the state generated surf of 12 to 18 feet on the north shores and 6 to 10 feet along the west shores of all the 

Hawaiian Islands. 


Puna - Molokai - Lanai 

22 2200HST 

0 0 

High Surf 

24 0200HST 

Storm low northwest of Hawaii produced surf of 10 to 15 feet along the north shores of all the islands. 



Maui County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


24 1800HST 

0 0 

High Surf 

26 0500HST 

Deep storm low far northwest of the state caused surf of 15 to 20 feet along the north shores and 10 to 15 feet on the west shores of 

all the islands. 

Kihei to 25 1810HST 

0 0 

Waterspout 

Maalaea 

1815HST 

Two waterspouts were sighted in Maalaea Bay just after 6 PM on Christmas Day. Eye witnesses said that the waterspouts moved 

ashore and apparently dissipated. There were no reports of injuries or damage. 

27 23 

December 1999

HAWAII 

HIZ004-008 North And East Hawaii Including Windward Kohala / Hamakua / Hilo / Puna - South Hawaii 

Including Kau 

26 2030HST 

0 0 


29 0630HST 

West to northwest winds of 50 to 70 mph occurred near the summits of Mauna Kea and Mauna Loa on the island of Hawaii. 


Puna - Molokai - Lanai 


31 0600HST 

2200HST 

0 0 

High Surf 

Storm low far northwest of the state produced surf of 8 to 12 feet along the north shores of all the Hawaiian Islands. 

1 S Waikiki 31 1250HST 

1300HST 

0 0 

Waterspout 

Waterspout was spotted by an off-duty NWS employee about a mile south of Diamond Head on the island of Oahu. 


Mililani Town 31 1725HST 

1740HST 

0 0 

Funnel Cloud 

A funnel cloud was sighted by a member of the general public just overhead of Mililani in central Oahu. There were no reports of 

any injuries or damage from the phenomenon. 

IDAHO, Extreme Southeast 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



IDAHO, North 

IDZ005 Northern Clearwater Mountains 

02 0700MST 

2000MST 

Hemlock Butte- 9 inches of snow 

IDZ005-010 Northern Clearwater Mountains - Eastern Lemhi County 

09 0800MST 

10 0800MST 

Gibbonsville- 6 inches of snow 

Shanghai Summit- 8 inches of snow 

IDZ005>006 Northern Clearwater Mountains - Southern Clearwater Mountains 

11 0300MST 

13 0915MST 

Elk Butte- 9 inches of snow 

Mountain Meadows- 7 inches of snow 

Dixie- 7 inches of snow 

Cool Creek- 11 inches of snow 

Savage Pass- 8 inches of snow 


12 0415MST 

13 0350MST 

Cool Creek- 11 inches of snow 


Mountain Meadows- 6 inches of snow 

Savage Pass- 8 inches of snow 


14 2200MST 

15 2145MST 




Pierce- 11 inches of snow 

Headquarters- 10 inches of snow 

Elk City- 15 inches of snow 

Powel- 11 inches of snow 

Weippe- 14 inches of snow 

28 24 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Heavy Snow 

Heavy Snow 

Heavy Snow 

Heavy Snow 

Heavy Snow 

December 1999

IDAHO, North 

Dixie- 6 inches of snow 

IDZ005 Northern Clearwater Mountains 

17 1530MST 

18 0810MST 




IDAHO, Northwest 

IDZ001-004 Northern Panhandle - Central Panhandle Mountains 

0 

0 

Heavy Snow 

02 0600PST 

0 0 

Heavy Snow 

31 2200PST 

Snow amounts of 4 to 12 inches were reported in the mountains of North Idaho, mainly above 3000 feet in elevations. 

IDZ001 Northern Panhandle 

18 0700PST 

1000PST 

0 6 200K 


Strong winds from a winter storm collapsed a structure under construction in Bonner Ferry. Six people were injured when they fell 

from the roof of the structure. 

IDAHO, Southeast 

IDZ018>019-031 Sawtooth Mountains - Upper Snake Highlands - Big And Little Wood River Region 

02 0600MST 

0 0 30K 


2100MST 

A winter storm brought heavy snow to the mountains of Eastern Idaho. Accumulation of 5 to 8 inches were reported from the 

Sawtooth Mountains to the Teton Basin. Additionally, snow amounts below 2 inches were reported across the Snake and Magic 

Valleys. This snow was whipped up by winds of up to 50 mph, in the wake of a cold front, and caused numerous accidents due to 

poor visibilities. Poor visibility from blowing snow also caused I-84 from Burley to the Utah border to be closed during the storm. 

IDZ018>019-031 Sawtooth Mountains - Upper Snake Highlands - Big And Little Wood River Region 

IDAHO, Southwest 

IDZ011-013- 

028>030 

12 2000MST 

0 0 


13 1300MST 

A winter storm brought heavy snow to the mountains of Central and Eastern Idaho. Accumulation of 6 to 12 inches were reported 

from the Sawtooth and Boulder Mountains across the Upper Snake Highlands to the Teton Basin. 

West Central Mountains - Boise Mountains - Camas Prairie - Owyhee Mountains - Southern Twin 

Falls County 

01 0105MST 

0 0 

Heavy Snow 

02 2045MST 

A cold North Pacific storm tracked inland through Southeast Oregon and Southwest Idaho, spreading heavy snow across the region. 

Reports from spotters and cooperative observers indicated 5 to 10 inches of snowfall throughout the West Central Mountains, with 

higher elevation sites reporting as much as 14 inches. 5 to 7 inches of snow fell in the Boise Mountains, from Placerville to Grimes 

Creek, and 3 to 4 inches of snow were reported in the Owyhee Mountains, the Camas Prairie, and Southern Twin Falls County. 

IDZ011-013 West Central Mountains - Boise Mountains 

IDZ011-013- 

028>029 

ILLINOIS, Central 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


09 0300MST 

0800MST 

0 0 

Heavy Snow 

A cold front moved through Southeast Oregon and Southwest Idaho during the early morning hours of December 9th, dropping up to 

6 inches of snow in the West Central Mountains and 5 to 7 inches in the Boise Mountains. 

West Central Mountains - Boise Mountains - Camas Prairie - Owyhee Mountains 

12 1200MST 

0 0 

Heavy Snow 

13 0600MST 

A moist Pacific storm brought local heavy snow to Southwest Idaho's mountains. In the West Central Mountains, Deadwood and 

Westbranch reported 9 inches of new snow and Cascade and Bear Basin reporting 5 to 6 inches of snow. In the Boise mountains, 

Bogus Basin received 8 to 9 inches while higher elevation sites reported over a foot of new snow. 5 to 7 inches of new snow was 

reported over the Camas Prairie and the Owyhee Mountains. 


29 25 

December 1999

ILLINOIS, Northeast 


ILLINOIS, Northwest 

ILZ007-015 Carroll - Rock Island 

ILZ001>002-007- 

009-015>018- 

024>026-034>035 

05 0700CST 

1300CST 

0 0 


Low pressure over Missouri lifted into the Ohio Valley. Precipitation began as rain, but as the system moved east strong north winds 

on the backside of the storm ushered in colder air allowing for a changeover from rain to snow. A narrow band of 1 to 4 inches of 

snow fell from Northeast Missouri through the Quad Cities into Northwest Illinois. 

Jo Daviess - Stephenson - Carroll - Whiteside - Rock Island - Henry - Bureau - Putnam - Mercer - 

Henderson - Warren - Hancock - Mcdonough 

12 2300CST 

0 0 

Fog 

13 1300CST 

Dense fog combined with freezing temperatures to deposit a thin layer of ice on many roads. Several accidents were reported. 

ILZ034>035 Hancock - Mcdonough 

ILZ009-015>018- 

024>026-034>035 

ILZ001>002-007- 

009-015>018- 

024>026-034>035 

ILZ001>002-007- 

009-015>018- 

024>026-034>035 

ILLINOIS, South 

ILZ075>078- 

080>094 

ILLINOIS, Southwest 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


15 0400CST 

1400CST 

0 0 


A storm system over Northern Missouri raced northeast to near Chicago, Illinois by late afternoon. Precipitation began as rain and 

changed over to snow between 7 and 9 am as north winds ushered in colder air. Accumulations were confined to Northeast Missouri, 

Southeast Iowa and West Central Illinois along and south of Interstate 80 where amounts ranged from 1 to 3 inches. 

Whiteside - Rock Island - Henry - Bureau - Putnam - Mercer - Henderson - Warren - Hancock - 

Mcdonough 

16 1900CST 

0 0 


17 0500CST 

An alberta clipper system brought snow to Eastern Iowa, Northwest Illinois and Northeast Missouri. 

Snow blanketed the entire region with amounts ranging from 1 to 3 inches in many areas. Freezing drizzle 

mixed with the snow across portions of Northwest Illinois which limited amounts to between a dusting and a 

half inch in several areas along and north of Highway 88. Numerous accidents were reported. 



19 1500CST 

0 0 


20 0400CST 

A vigorous upper level storm system raced from the Northern Rockies into the Midwest bringing snow to the region. Freezing rain 

and drizzle mixed with the snow which kept amounts to around 1 inch over much of Northwest and West Central Illinois. Roads were 

slick in spots with several accidents reported. An arctic front swept across the region during the overnight. Strong north winds 

produced some blowing and drifting of snow, and dangerously cold wind chills of 15 to 30 below zero. 



23 1400CST 

2300CST 

0 0 


Low pressure over Southern Minnesota dropped southeast and brought widespread light to moderate snow to much of Eastern Iowa 

and Northwest Illinois. Accumulations of 2 to 4 inches occurred north of Highway 34 with 1 to 3 inches to the south where the snow 

was mixed with freezing rain and sleet at times. Numerous accidents were reported as roads were slick and hazardous. 

Jefferson - Wayne - Edwards - Wabash - Perry - Franklin - Hamilton - White - Jackson - 

Williamson - Saline - Gallatin - Union - Johnson - Pope - Hardin - Alexander - Pulaski - Massac 

01 0001CST 

0 0 

Drought 

31 2359CST 

Moderate drought conditions continued to plague parts of southern Illinois into early winter. Heavy rainfall at mid-month brought 

significant relief. Before then, the dry weather caused unusually high wildfire activity. Campfires and other outdoor burning was 

banned in several counties, including Alexander, Hardin, Jackson, Johnson, Pope, Pulaski, and Union. 


30 26 

December 1999

INDIANA, Central 

INDIANA, Northeast 

INDIANA, Northwest 

INDIANA, South Central 

INDIANA, Southeast 






INDIANA, Southwest 

INZ081>082- Gibson - Pike - Posey - Vanderburgh - Warrick - Spencer 

085>088 

IOWA, Central 

IAZ044-057-082- 

092 

01 0001CST 

0 0 

Drought 

31 2359CST 

Moderate drought conditions continued to plague southwest Indiana into early winter. Heavy rainfall during mid month, up to 4 

inches in some places, brought significant relief. Until then, wildfire danger was especially high. The Christmas tree crop was 

damaged by the long-term drought. Most tree seedlings died, but the larger trees fared remarkably well. 

Crawford - Audubon - Union - Taylor 

19 1100CST 

0 0 

Heavy Snow 

2000CST 

After an extended period of very warm and dry weather, the first significant snowfall of the season occurred in Iowa. Low pressure 

passed north of the state as an Arctic cold front trailing from the low swept southeast across the state. Light snow began during the 

late morning hours of the 19th and increased in intensity during the afternoon hours. Nearly all of Iowa reported at least some snow. 

The heaviest snow fell over the southwest quarter of the state. Four to six inch amounts were common in a band extending from 

southwest into the central counties. Surrounding this band, one to three inch snowfall amouts were common over the rest of the state. 

The heaviest snow accumulation was reported in Bedford, with 6.3 inches. The snow resulted in a large number of traffic accidents 

as temperatures were at or a little above freezing at the inception of the event. In the wake of the Arctic front, temperatures fell 

rapidly into the low to mid 20s resulting in considerable icing on roadways. 

IOWA, East Central and Southeast 

IAZ066-068- Clinton - Scott - Jefferson - Henry - Van Buren 

087>088-098 

IAZ041>042- 

052>054-064>068- 

077>078-087>089- 

098>099 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


05 0700CST 

1300CST 

0 0 





Delaware - Dubuque - Linn - Jones - Jackson - Johnson - Cedar - Clinton - Muscatine - Scott - 

Washington - Louisa - Jefferson - Henry - Des Moines - Van Buren - Lee 

12 2300CST 

0 0 

Fog 

13 1300CST 

Dense fog combined with freezing temperatures to deposit a thin layer of ice on many roads. Several accidents were reported. A 

single fatality accident occurred at Highway 218 and Melrose Avenue on the southwest side of Iowa City. Iowa State Patrol said the 

driver failed to stop at the end of an exit ramp and was broadsided by a semi-tractor trailor. Weather was not considered a factor. 

Another accident resulted in two fatalities at Highway 1 and Interstate 80 on the north side of Iowa City. Iowa City police said fog and 

slick roads were present but were not considered a factor. 

31 27 

December 1999

IOWA, East Central and Southeast 

IAZ068-077- Scott - Washington - Jefferson - Henry - Des Moines - Van Buren - Lee 

087>089-098>099 

IAZ041-051>054- 

063>068-076>078- 

088>089-098>099 

IAZ030-040>042- 

051>054-063>068- 

076>078-087>089- 

098>099 

IAZ040>042- 

052>054-063>068- 

089 

IOWA, Northeast 

IOWA, Northwest 

IAZ001>003- 

012>014-020>022- 

031>032 

IOWA, Southwest 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


15 

0400CST 

1400CST 

0 

0 



changed over to snow between 7 and 9 am as north winds ushered in colder air. Accumulations were confined to Southeast Iowa 

along and south of Interstate 80 where amounts ranged from 1 to 3 inches. 

Delaware - Benton - Linn - Jones - Jackson - Iowa - Johnson - Cedar - Clinton - Muscatine - Scott - 

Keokuk - Washington - Louisa - Henry - Des Moines - Van Buren - Lee 

16 1900CST 

0 0 

17 0500CST 


Snow blanketed the entire region with amounts ranging from 1 to 3 inches in many areas. Freezing drizzle 

mixed with the snow across portions of Northeast Iowa which limited amounts to between a dusting and a 

half inch in several areas along and north of Highway 20. Numerous accidents were reported. 


Clayton - Buchanan - Delaware - Dubuque - Benton - Linn - Jones - Jackson - Iowa - Johnson - 

Cedar - Clinton - Muscatine - Scott - Keokuk - Washington - Louisa - Jefferson - Henry - Des 

Moines - Van Buren - Lee 

19 1500CST 

0 0 


20 0400CST 

A vigorous upper level storm system raced from the Northern Rockies into the Midwest bringing snow to the region. Accumulations 

ranged from 1 to 3 inches. Locally higher amounts of 4 inches fell in a narrow band over portions of Iowa, Johnson and Louisa 

counties. An arctic front swept across the region during the overnight. 

Strong north winds produced some blowing and drifting of snow, and dangerously cold wind chills of 15 to 30 below zero. 

Buchanan - Delaware - Dubuque - Linn - Jones - Jackson - Iowa - Johnson - Cedar - Clinton - 

Muscatine - Scott - Des Moines 

23 1400CST 

0 0 


2300CST 

ow pressure over Southern Minnesota dropped southeast and brought widespread light to moderate snow to much of Eastern Iowa 

and Northwest Illinois. Accumulations of 2 to 4 inches occurred north of Highway 34 with 1 to 3 inches to the south. A narrow swath 

of 5 to 6 inches fell from near Cedar Rapids to Maquoketa to Dubuque. Roads were snowpacked and hazardous throughout the region 

with numerous accidents reported. Several businesses closed early. 


Lyon - Osceola - Dickinson - Sioux - O'Brien - Clay - Plymouth - Cherokee - Buena Vista - 

Woodbury - Ida 

01 0000CST 

0 0 

Drought 

31 2359CST 

Dry weather that began in August continued through December. Dry surface and soil conditions became even more pronounced. 

Water levels continued to fall slowly, especially in wetlands, small streams, and lakes. Above normal temperatures contributed to 

further drying. There was great concern for the future growing season because of the dry soil conditions, and there were a few grass 

fires. 


32 28 

December 1999

KANSAS, East 

KSZ012-022>024- 

026-035>040- 

054>055 

KANSAS, Extreme Southeast 


Brown - Riley - Pottawatomie - Jackson - Jefferson - Dickinson - Geary - Morris - Wabaunsee - 

Shawnee - Douglas - Lyon - Osage 

04 2000CST 

0 0 


05 0900CST 

A low pressure system moved from Oklahoma to Missouri and spread wintry weather across much of Northeast and East central 

Kansas. Cold rain changed to sleet then to snow during the evening of the 4th and continued through mid morning on the 5th. The 

heaviest snow fell in a 70 mile wide corridor centered along a line from near Council Grove to near Valley Falls. Some of the 

reported amounts include: Eskridge 12"; Nortonville 10"; Alta Vista 9"; White City 9"; Auburn 8"; Council Grove Resevoir 8"; 

Holton 6.5"; Herington 6". Amounts across Topeka ranged from 4 to 8". Three to 4 foot drifts were reported on U.S. Highway 56 

west of Council Grove. Tree limbs were downed in Council Grove as well as a light pole. Power lines were downed near Auburn. 

Around 11,000 homes in the storm area had power outages some of which lasted into the evening hours of the 5th. Many wrecks 

occurred throughout the area but fortunately there were no serious injuries. 

Girard 02 2250CST 

0 0 

Thunderstorm winds blew down a tree on the west side of Girard. 

KANSAS, North Central 


KANSAS, Northeast 

KSZ025-102 Atchison - Doniphan 

KANSAS, Northwest 

KANSAS, Southeast 

Cowley County 

0 


05 0800CST 

1200CST 

0 0 

Heavy Snow 

Portions of Atchison and Doniphan Counties were under a band of heavy snow early on the morning of December 5. Snow began 

around 3 am, and accumulated at a rate of more than 1 inch per hour. By 8 am, reports were received of 6 inches of snow on the 

ground. Before the event ended around midday, the NWS co-op observation site in Atchison had received a total of 9 inches of snow. 


7 N Arkansas City 02 2023CST 

Occurred at Strother Field. 

Reno County 

Yoder 02 2023CST 

Cowley County 

Floral 02 2045CST 

0 0 

Barn destroyed and trees blown down. Time of occurence estimated. 

Butler County 

Augusta 02 2102CST 

Cowley County 

Burden 03 2045CST 

Cowley County 

Arkansas City 03 2148CST 

Cowley County 

6 S Winfield 03 2150CST 

Cowley County 

2 NE Tisdale 03 2230CST 

Time estimated. 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


33 29 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

10K 


Hail (0.88) 



Hail (0.75) 

Hail (1.00) 

Hail (0.88) 

Hail (1.00) 

December 1999


KSZ051>052- Mcpherson - Marion - Harvey - Butler - Kingman - Sedgwick 

068>069-082>083 

KANSAS, Southwest 

Barber County 

1 SW Hazelton 03 1855CST 

KSZ066-079-081- 

090 

KSZ061 Hamilton 

KSZ063 Finney 

KSZ078 Ford 

04 1800CST 

0 0 

Heavy Snow 

05 0700CST 

An early season winter storm produced a 30-mile swath of heavy snow 6 to 10 inches deep across that part of central and 

south-central Kansas from around Kingman east-northeast across the Wichita metropolitan area to around Hillsboro. The greatest 

accumulations (8 to 10 inches) occurred across northern Sedgwick, Harvey and southeast McPherson counties. The snow was 

convective, with thunder reported over most of this area. Reports were also received from the cooperative network. 

Stafford - Edwards - Pratt - Barber 

0 

0 

Hail (1.00) 

04 1800CST 

0 0 


05 0200CST 

A winter storm produced 6 inches of snow across most of the area. In Barber county, the snow was lighter but at the same time ice 

accumulated to 3/4 of an inch during a period of freezing rain. Power lines were reported to be down in the area. 

14 0544CST 

Wind occurred at Syracuse. 

14 1100CST 

A few power outages reported. 

14 1414CST 

0 

63 kt gust recorded by backup equipment at the airport. 

KENTUCKY, Central 

KYZ030>031-034- Jefferson - Oldham - Shelby - Spencer - Anderson - Mercer 

038>039-047 

0 

0 

0 

0 

0 




24 0200EST 

1000EST 

0 0 

Heavy Snow 

A fast moving area of low pressure dropped 4 to 6 inches of snow across parts of North Central Kentucky during the morning hours 

of December 24th. 

KENTUCKY, Eastern 

KYZ068>069-088- Rockcastle - Jackson - Harlan - Owsley - Perry - Clay - Leslie - Letcher 

114>118 

KENTUCKY, Northeast 

KENTUCKY, Northern 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


24 0900EST 


1400EST 

Snowfall of 2 to 5 inches occurred across southeast Kentucky. The greatest snowfall occurred in a band from Rockcastle and Jackson 

counties thru Owsley, Clay, Perry, Leslie, Harlan and Letcher counties. The greatest snowfall amounts occurred in Perry and Harlan 

counties where 5 inches was reported. Temperatures remained below freezing thru December 25th, allowing much of the area to 

enjoy a white Christmas. 



KENTUCKY, Southwest 

KYZ001>022 Fulton - Hickman - Carlisle - Ballard - Mccracken - Graves - Livingston - Marshall - Calloway - 

Crittenden - Lyon - Trigg - Caldwell - Union - Webster - Hopkins - Christian - Henderson - 

Daviess - Mclean - Muhlenberg - Todd 

01 

31 

0001CST 

2359CST 

34 30 

0 

0 

Drought 

December 1999

KENTUCKY, Southwest 

Western Kentucky continued to flirt with severe drought conditions into early winter. The Palmer Drought Index indicated severe 

drought conditions at the start of December. Heavy rainfall amounts of up to 3 inches at mid month moderated the drought, but then 

no rain fell for the remainder of the month, which again placed western Kentucky on the verge of a severe drought. Burning bans 

were in effect for most counties until the heavy rain at mid month. The city of Marion, located about 30 miles northeast of Paducah, 

experienced the most serious water supply problems. On December 2, residents of Marion were asked to voluntarily conserve water 

due to low water levels on its two reservoirs. Lake George was 8 feet below normal pool elevation, and was holding only about 62 

million gallons in late November. Normally, the lake holds 146 million gallons. The continuing drought shriveled waterfowl habitat, 

especially for geese and ducks. Western Kentucky's goose-hunting season, normally a big attraction to hunters from around the 

country, was dealt a major setback. December Christmas tree sales were hurt by the drought. Most tree seedlings were killed during 

the drought, but only 10 to 20 percent of the mature trees died. Wildfire activity continued above normal. A large forest fire occurred 

in the Trigg County portion of the Land Between The Lakes Recreation Area early in the month. No acreage estimate was available. 

A brush fire in northwest McCracken County late in the month burned about 20 acres. 

LOUISIANA, Northeast 

West Carroll 

Parish 

Darnell 09 1806CST 

East Carroll 

Parish 

Countywide 12 1513CST 

Franklin Parish 

Crowville 12 1530CST 

Trees and power lines were blown down. 

LOUISIANA, Northwest 

Natchitoches 

Parish 

1.2 NNE 

Marthaville to 

4.7 NE Marthaville 

Union Parish 

04 

1833CST 

1842CST 

4 30 0 

Tornado occurred in rural wooded area. Damage consisted of leaf stripped trees and broken branches. 

0 

0 

0 

0 

0 

0 

0 

10K 

Hail (0.75) 

Hail (0.75) 


Tornado (F0) 

Loch Lomon 09 1600CST 

0 0 30K 


Several large pines down causing damage to 2 homes and several power lines. Loch Lomon is located along Hwy 2 about 3 miles 

northwest of Sterlington, Ouachita Parish. 

LOUISIANA, Southeast 

Livingston Parish 

Denham Spgs 12 1030CST 

0 

Thunderstorm winds overturned and destroyed a mobile home. 

Washington 

Parish 

0 

15K 


Bogalusa 12 1800CST 

0 0 10K 


Thunderstorm winds blew the roof off of an unoccupied building and knocked down several trees. 

East Baton Rouge 

Parish 

Baton Rouge 18 0800CST 

A lightning strike ignited a fire in a house. 

LOUISIANA, Southwest 

Calcasieu Parish 

Lake Charles 04 2120CST 

0 

Trees downed on Highway 397 and East Prien Lake Road. 

LAZ041 Calcasieu 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 

400K 

1K 

Lightning 


19 0600CST 

0 1 8K 

Fog 

A man suffered severe injuries when his truck ran off the road into a culvert and deep ditch in De Quincy. His injuries included a 

crushed foot and leg, and broken ribs and wrists. 

35 31 

December 1999

MAINE, North 


MAINE, South 

MEZ018>028 Interior York - Interior Cumberland - Androscoggin - Kennebec - Interior Waldo - Coastal York - 

Coastal Cumberland - Sagadahoc - Lincoln - Knox - Coastal Waldo 

MEZ018 Interior York 

MEZ007>009- 

012>014-018>028 

MEZ008>010- 

012>014-018>022 

01 0330EST 

1900EST 

0 0 

Strong Winds 

Strong, gusty, north winds developed across southern Maine on the west side of an intensifying ocean storm. Peak wind gusts were 

39 mph (measured) at Portland and Brunswick, and 37 mph (measured) at Augusta. No damage reports were received. 

10 0600EST 

0800EST 

0 0 

Freezing Fog 

Freezing fog caused black ice to form on the roads and greatly reduced visibilities across extreme southwestern Maine leading to a 

number of accidents in the Berwicks. Numerous accidents were also reported across the border in New Hampshire. 

Northern Oxford - Northern Franklin - Central Somerset - Southern Oxford - Southern Franklin - 

Southern Somerset - Interior York - Interior Cumberland - Androscoggin - Kennebec - Interior 

Waldo - Coastal York - Coastal Cumberland - Sagadahoc - Lincoln - Knox - Coastal Waldo 

11 0500EST 

0 0 

Strong Winds 

12 0500EST 

Strong, gusty, northwest winds developed across western Maine on the west side of an intensifying low pressure system over the 

Canadian maritimes. The wind downed trees and limbs onto power lines causing scattered power outages. Downed trees damaged 

houses and vehicles, and temporarily blocked some roadways in western York, western Cumberland , and Oxford Counties. 

Approximately 27,000 customers were affected by power outages. The peak wind gust in Portland was 51 mph (measured). 

Northern Franklin - Central Somerset - Southern Piscataquis - Southern Oxford - Southern 

Franklin - Southern Somerset - Interior York - Interior Cumberland - Androscoggin - Kennebec - 

Interior Waldo 

20 1600EST 

0 0 

Freezing Rain 

2300EST 

Freezing rain developed over much of western Maine, except along the immediate coast, during the late afternoon and evening of 

Monday the 20th and caused numerous accidents. One man was killed in Wilton when a truck slid acroos the center line and into the 

path of an oncoming car. By midnight, temperatures had warmed to above freezing, although some roads reportedly remained icy 

throughout the night. 

MARYLAND, Central 

MDZ002>003 Allegany - Washington 

MARYLAND, Northeast 

MDZ008 Cecil 

Caroline County 


14 1500EST 

Cecil County 


14 1500EST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


13 0600EST 

0 0 

Winter Weather 

0900EST 

Light rain fell across Western Maryland from 6:00 AM through Noon on the 13th. However, temperatures at ground level were 

below freezing in Washington and Allegany Counties between 6:00 AM and 9:00 AM, allowing the rain to freeze on impact. 

Although precipitation amounts were light, a thin layer of ice accumulated on roads making driving difficult. Due to the slippery 

conditions, Interstate 68 between Hancock and Flintstone was shut down through mid-morning. Several accidents were reported on 

this stretch of highway. 

10 1800EST 

0 0 

Wind 

11 0700EST 

A strong cold front moved through the Maryland Eastern Shore during the early evening of the 10th. The front was accompanied by 

strong gusty northwest winds. As a low pressure system intensified as it moved across northern New England into the Canadian 

Maritimes and a large high pressure system built east from the Northern Plains and the Great Lakes, gusty northwest winds 

continued throughout most of the night. The strongest gusts were in the northern part of the Eastern Shore. Peak wind gusts included 

45 mph at the New Castle County Airport in Delaware and 41 mph at the Baltimore-Washington International Airport. 

36 32 

0 

0 

0 

0 

Heavy Rain 

Heavy Rain 

December 1999

MARYLAND, Northeast 

Kent County 


14 1500EST 

Queen Anne'S 

County 


14 1500EST 

Talbot County 

0 

0 

0 

0 

Heavy Rain 

Heavy Rain 


0 0 

Heavy Rain 

14 1500EST 




hours of steady rain from around noon on the 13th into the early afternoon of the 14th. The heaviest rain (about two-thirds of the 

storm total) fell during the morning and early afternoon of the 14th. Storm totals averaged around an inch and a half. Some poor 

drainage flooding occurred, but no other problems were reported. Storm totals included 1.87 inches at the Conowingo Dam (Cecil 

County), 1.65 inches at the Baltimore-Washington International Airport, 1.30 inches in Easton (Talbot County) and 1.20 inches in 

Federalsburg (Caroline County). 

MARYLAND, South 


MARYLAND, West 

MDZ001 Garrett 

26 1500EST 

0 0 


27 2300EST 

Strong, persistent northwest winds behind a cold front produced orographically enhanced snows to the higher elevations of Garrett 

County. Snowfall totals of 4 to 6 inches were found over the mountain ridges, with lesser amounts of 2 to 4 inches reported at lower 

elevations across the county. Some snowfall totals included 4 to 6 inches at the Wisp Ski Resort, 4 inches at Mountain Lake Park and 

3 inches in Oakland. 

MASSACHUSETTS, Central and East 

MAZ022-024 Barnstable - Nantucket 

MAZ022 Barnstable 

MAZ004>005-007- 

009-011>021- 

023>024 

MAZ002>004- 

008>011 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


01 0500EST 

1400EST 

0 0 


An ocean storm passing over Georges Bank brought a period of high winds to Cape Cod and Nantucket. Sustained winds of 40 mph 

were reported at Provincetown and Nantucket, with frequent gusts to 55 mph at both locations. There were no reports of damage. 

10 

11 

1800EST 

1300EST 

0 

0 


Northern Worcester - Western Middlesex - Eastern Essex - Western Hampden - Eastern Hampden 

- Southern Worcester - Western Norfolk - Southeast Middlesex - Suffolk - Eastern Norfolk - 

Northern Bristol - Western Plymouth - Eastern Plymouth - Southern Bristol - Southern Plymouth - 

Dukes - Nantucket 

11 1000EST 

0 0 

Strong Wind 

2100EST 

An intensifying low pressure system in the Gulf of Maine brought strong northwest winds to most of Massachusetts. Wind gusts of 

40 to 50 mph were common during the afternoon and evening, and there were scattered reports of downed tree limbs and wires. The 

most substantial damage, in the form of isolated downed trees and wires, occurred in Petersham and Hingham. On Cape Cod, 

sustained winds of 40 mph were reported at Provincetown for a three-hour period. Ferry service between Hyannis and Nantucket was 

suspended for a time due to the strong winds. 

Western Franklin - Eastern Franklin - Northern Worcester - Western Hampshire - Western 

Hampden - Eastern Hampshire - Eastern Hampden 

20 1000EST 

0 0 

Freezing Rain 

1800EST 

Light freezing rain developed in the deeper valleys of western and central Massachusetts, as rain fell into a shallow layer of below 

freezing air at the surface. The resultant light coating of ice created "black ice" on many roadways in the region, causing dozens of 

car accidents. Portions of Interstates 91 and 190 were closed for a time due to accidents. Greenfield and Northampton were 

especially hard hit by the slick driving conditions. 

37 33 

December 1999

MASSACHUSETTS, Central and East 

MAZ020>022-024 Southern Bristol - Southern Plymouth - Barnstable - Nantucket 

MASSACHUSETTS, West 

MICHIGAN, East 

30 0600EST 

0800EST 

0 0 

Strong Wind 

Low pressure moving across Ontario Canada brought a brief period of strong southwest winds to south coastal Massachusetts. 

Sustained winds of 30 to 35 mph were reported at Nantucket and Hyannis early in the morning. The Buzzards Bay Entrance Tower, 

which is an elevated platform, reported a gust to 59 mph. 



MICHIGAN, Extreme Southwest 


MICHIGAN, North 

MIZ008-016-019- Chippewa - Emmet - Charlevoix - Antrim 

021 

MIZ008-016>017- 

019-021>022-027 

MIZ015>016 Mackinac - Emmet 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


16 1300EST 

0 0 

Heavy Snow 

17 1300EST 

A low pressure system east of James Bay brought northwest winds across the Great Lakes region. This allowed for lake effect snow 

bands to become established over portions of northwest lower Michigan and eastern upper Michigan. Some of the bands and the 

associated snowfall persisted for nearly 24 hours over a few locations. One band over northern Antrim county brought up to 9 inches 

of snowfall. Another band affected northern Charlevoix county and extreme southern Emmet county where up to 11 inches of snow 

fell. Finally, northwestern Chippewa county received 8 to 11 inches, all due to a lake effect snow band. 

Chippewa - Emmet - Cheboygan - Charlevoix - Antrim - Otsego - Kalkaska 

22 1300EST 

0 0 

Heavy Snow 

24 0800EST 

Arctic air moved across the Great Lakes to produce a prolonged period of lake effect snow across portions of eastern upper and 

northwest lower Michigan. A band of snow established itself over southern Emmet and Cheboygan counties during the afternoon on 

the 22nd. By late evening the lake effect snow expanded into Charlevoix, Antrim and Otsego counties. During the morning of the 

23rd, the snow ended across southern Emmet and Cheboygan after producing 14 to 16 inches of snow. Lake effect snow then began 

falling across far northestern Chippewa county. The snow finally diminished by early morning on the 24th. By early morning on the 

24th, far northwestern Chippewa county received 16 to 18 inches of snow. Northwestern Otsego and northern Antrim counties 

received 12 to 14 inches, while southwestern Otsego, southern Antrim and northern Kalkaska county received 6 to 8 inches. 

25 1400EST 

0 0 


26 0200EST 

A strong cold front, associated with a storm system moving across southern Canada, moved across the northern Great Lakes from the 

evening of the 25th to the early morning hours on the 26th. Strong winds behind this cold front affected the entire Great Lakes 

region. The strongest wind speeds were felt in Emmet and Mackinac counties along the lake Michigan shoreline. Sustained winds 

during this time period were at 30 to 40 MPH with occasional gusts to 50 MPH. Wind speeds up to 62 MPH were recorded in the 

straits of Mackinac. 

MIZ019-021-028 Charlevoix - Antrim - Crawford 

26 0800EST 

2000EST 

0 0 

Heavy Snow 

Arctic air moving over the Great Lakes produced lake effect snow over portions of northwest lower Michigan. The heaviest snow fell 

in a band producing 6 to 7 inches of snow. The band extended from southern Charlevoix county across western Antrim county, and 

into extreme northwest Crawford county. 

MIZ026-031 Grand Traverse - Manistee 

27 2100EST 

0 0 

Heavy Snow 

28 0900EST 

Arctic air moving over the Great Lakes produced lake effect snow over northwest lower Michigan. The heaviest snow fell around 

Traverse City and portions of eastern Manistee county. These locations received up to 6 inches of snow. 

38 34 

December 1999

MICHIGAN, Upper 

MIZ001>003 Keweenaw - Ontonagon - Houghton 

MIZ001-001>003- 

005>006-009-014 

MICHIGAN, West 

MIZ056>057-064- 

071 

MIZ043-056>057- 

064-071 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


19 1400EST 

0 0 

Heavy Snow 

24 0800EST 

A strong low pressure system passed north of Lake Superior. Strong north winds behind the associated cold front produced bands of 

lake effect snow along the south shore of Lake Superior. The heaviest accumulations were over the Keweenaw Peninsula and along 

the lake in Ontonagon County. Snowfall totals from cooperative observers were 27 inches in Houghton, 28.8 inches near Ontonagon, 

and 18 inches in Phoenix. Snowfall rates of more than an inch an hour were reported during the height of the storm. 

Keweenaw - Ontonagon - Houghton - Marquette - Alger - Gogebic - Schoolcraft 

25 1930EST 

0 0 50K 


26 1000EST 

A strong cold front associated with an intense low pressure center over Hudson Bay swept across Upper Michigan Christmas Night 

with 35 to 45 mph winds and gusts over 60 mph. The strongest winds were reported over the Keewenaw Peninsula where 90 

percent of the area lost power overnight and hundreds of trees were blown down, ranging from 5 to 6 inch diameter fir trees to 12 

inch birch and maple trees. Power companies worked well into the afternoon of the 26th removing downed trees and reparing 

damaged power lines. 

Ottawa - Kent - Allegan - Van Buren 

21 

24 

0700EST 

0000EST 

0 

0 


Lake effect snow began after passage of a cold front early in the day on Tuesday, December 21st. Light snow developed across all of 

western lower Michigan during the evening hours of the 21st, and became heavier on the 22nd, after a trough of low pressure moved 

through. The heaviest snow fell between 6 a.m. on the 22nd, to the late evening hours of the 23rd. The following is a list of maximum 

storm total snowfalls from the 21st through the 24th: 

North Central Van Buren County 16 inches 

South Central Allegan County 15 inches 

Southeast Ottawa County 12 inches 

Southwest Kent County 12 inches 

Oceana - Ottawa - Kent - Allegan - Van Buren 

28 

0700EST 

1300EST 

0 

0 

Heavy Snow 

An Alberta Clipper system moved through the Great Lakes region, producing a short period of moderate to heavy snow across 

western lower Michigan. Although snow was reported across all of lower Michigan, the heaviest snow fell west of US-131. The 

following are a few snowfall totals: 

Grandville (Kent County) 7.7 inches 

Allegan (Allegan County) 7 inches 

Bloomingdale (Van Buren County) 7 inches 

Hudsonville (Ottawa County) 6 to 7 inches 

Walkerville (Oceana County) 5 to 6 inches 

MINNESOTA, Central and South Central 

Mille Lacs County 

Milaca 25 2130CST 

0 0 

Strong Wind 

One hundred thirty foot radio tower collapsed in Milaca. No AWOS or ASOS wind measuring 

equipment operating in the city of Milaca. However, Princeton aiport (Mille Lacs county), had a gust 

to 45 mph at 1035 pm CST. St. Cloud airport (Stearns County), had a gust to 44 mph at 852 pm CST. 

Mora (Kanabec county) had a gust to 55 mph at 935 pm CST, and a gust to 47 mph at 1035 pm CST. 

MINNESOTA, Northeast 

MNZ010>012- Koochiching - Northern St. Louis - Northern Cook / Northern Lake - Central St. Louis - Southern 

019>021 

Lake - Southern Cook 

25 1500CST 

0 0 

Strong Wind 

26 1030CST 

Extreme northeastern Minnesota experienced strong, sustained winds of 25 to 40 MPH from late Christmas afternoon into the 

39 35 

December 1999

MINNESOTA, Northeast 

morning of the 26th. Gusts were measured around 50 mph, especially near Lake Superior, with unofficial estimates as high as 60 

mph. The strong winds caused near-whiteout conditions in blowing snow in some locations and knocked down trees and power lines, 

causing widespread power outages. Several large trees were blown down on the Gunflint Trail. A few businesses in Ely suffered sign 

damage. Some homes in International Falls had shingles and Christmas lights blown away. Near Ray, some farm buildings had roof 

damage. 

MINNESOTA, Northwest 

MNZ004 Kittson 

MNZ001-004>009- 

016>017-023>024 

MINNESOTA, Southeast 

19 0530CST 

2130CST 

0 0 

Blizzard 

A strong low pressure system tracked across southern Canada, producing blizzard conditions across portions of northeast North 

Dakota and extreme northwest Minnesota. A few schools closed for the day, due to the poor visibility. 

West Polk - Kittson - Roseau - Lake Of The Woods - West Marshall - East Marshall - North 

Beltrami - North Clearwater - South Beltrami - South Clearwater - Hubbard 

25 1800CST 

2200CST 

0 0 


A cold front dropped south out of Manitoba and Saskatchewan, bringing strong winds behind it. With the warm temperatures and 

little snow cover, blowing snow was not a problem. The strongest wind occurred near the Lake of the Woods, where Flag Island 

reached a gust of 75 knots. 


MINNESOTA, Southwest 

MNZ071>072- Lincoln - Lyon - Murray - Cottonwood - Nobles - Jackson - Pipestone - Rock 

080>081-089>090- 

097>098 

MINNESOTA, West 

01 0000CST 

0 0 

Drought 

31 2359CST 

Dry weather that began in August continued through December. Dry surface and soil conditions remained quite pronounced. Water 

levels continued to fall slowly, especially in wetlands, small streams, and lakes. Above normal temperatures contributed to further 

drying. There were a few grass fires reported. Agricultural concern was mostly for the future growing season, but there were some 

effects of the drought noted to winter wheat. 


MINNESOTA, West Central 

MISSISSIPPI, Central 

Washington 

County 


3 E Greenville 09 1800CST 

0 0 175K 


A surplus store was nearly destroyed and several homes received roof damage. A barn was completely destroyed. Several trees and 

power lines were blown down. 

Yazoo County 

1 ENE Bentonia to 09 1836CST 

7 NE Bentonia 

1845CST 

Grenada County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


6 400 0 

1 

Tornado (F3) 

This strong tornado blew down or uprooted thousands of trees and destroyed two mobile homes. One person was seriously injured. 

Several barns and out buildings were also destroyed and several farm implements were damaged. One of the out buildings had steel 

girders which were anchored into three foot square concrete pads and buried in the ground. Almost all of these girders were pulled 

out of the ground and thrown at least fifty yards. 

Grenada 09 1950CST 

0 5 25K 


A business received major roof damage and five employees sustained injuries. Several tractor-trailers were blown over. 

40 36 

200K 

December 1999

MISSISSIPPI, Central 

Montgomery 

County 

Winona 09 1955CST 

Several trees were blown down. 

Warren County 


Several trees and power lines were blown down. 

MISSISSIPPI, North 

Yalobusha County 

0 

0 

0 

0 

5K 

10K 




2015CST 

0 0 20K 


A few small sheds were demolished. Some houses had their roofs torn off or badly damaged. Some trees were blown over. 

Lee County 

6 SE Tupelo 09 2115CST 

2120CST 

Lee County 

Mooreville to 09 2120CST 

3 NE Guntown 

2135CST 

Several trees and power lines were blown down. 

Itawamba County 

Fulton 09 2145CST 

2150CST 

A few trees were knocked down. 

MISSISSIPPI, South 

MISSISSIPPI, Southeast 

MISSOURI, East 

MISSOURI, Lower 





MISSOURI, Northeast 

MOZ009 Scotland 

MOZ009>010 Scotland - Clark 




Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 

0 

0 

0 

0.01K 

10K 

5K 

Hail (0.75) 



05 0700CST 

1300CST 

0 0 





12 2300CST 

0 0 

Fog 

13 1300CST 

Dense fog combined with freezing temperatures to deposit a thin layer of ice on many roads. Several accidents were reported. 

15 0400CST 

1400CST 

0 0 



changed over to snow between 7 and 9 am as north winds ushered in colder air. Accumulations were confined to Southeast Iowa, 

Northeast Missouri and West Central Illinois where amounts ranged from 1 to 3 inches. 

16 

17 

1900CST 

0500CST 

41 37 

0 

0 


December 1999

MISSOURI, Northeast 


Snow blanketed the entire region with amounts ranging from 1 to 3 inches. Numerous accidents were reported. 


19 1500CST 

0 0 


20 0400CST 

A vigorous upper level storm system raced from the Northern Rockies into the Midwest bringing snow to the region. Accumulations 

ranged from 1 to 3 inches. An arctic front swept across the region during the overnight. 

Strong north winds produced some blowing and drifting of snow, and dangerously cold wind chills of 15 to 30 below zero. 

MISSOURI, Northwest 

MOZ005>006- Harrison - Mercer - De Kalb - Daviess - Grundy - Buchanan 

013>015-020 

MOZ054 Henry 

MOZ054 Henry 

05 0800CST 

0 0 

Heavy Snow 

1300CST 

Rain changed over to heavy snow in parts of northwest Missouri early on the morning of December 5th. Snow began around 3 am in 

the St. Joseph area, and spread northeastward during the next few hours. By 8 am, St. Joseph and Bethany reported snow depths of 6 

inches or more. Storm totals of 6 to 11 inches were reported in a narrow band running from the St. Joseph area to just east of 

Princeton in Mercer County. Law enforcement agencies reported traffic accident rates 4 times the typical Sunday morning rate. 

06 0000CST 

0 0 

Flood 

07 2359CST 

A wet first weekend of December saw approximately 1.5 inches of rain over the South Grand River basin, which was enough to 

cause minor flooding of the South Grand near Urich. 

09 0000CST 

0 0 

Flood 

11 2359CST 

Additional rainfall of a half inch to an inch, on top of what had fallen a few days before, was sufficient to cause renewed minor 

flooding of the South Grand River near Urich. The river crested on December 10 at 25.9 feet, 1.9 feet above flood stage. 

MISSOURI, Southeast 

MOZ076-086>087- Perry - Bollinger - Cape Girardeau - Wayne - Carter - Ripley - Butler - Stoddard - Scott - 

100-107>112-114 Mississippi - New Madrid 

MISSOURI, Southwest 

Cedar County 

01 0001CST 

0 0 

Drought 

31 2359CST 

Southeast Missouri continued to flirt with severe drought conditions into early winter. According to the Palmer Drought Index, the 

region started the month in a severe drought. Heavy rainfall of up to 4 inches at mid-month moderated the drought, but then no rain 

for the remainder of the month placed the region back on the verge of a severe drought. The much-needed rain helped save some 

wheat and pastures and allowed some trees and perennials to strengthen their root systems. Long-term moisture deficits remained 

significant. 

7 E Stockton 03 0035CST 

0 0 0 

Thunderstorm winds blew down a tree near the intersection of Highways A and 32. 

Newton County 

3 W Neosho 03 2106CST 

Newton County 

Seneca 03 2107CST 

Jasper County 

3 W Joplin 03 2115CST 

Jasper County 

Carl Jct 03 2115CST 

Barton County 

9 W Lamar 03 2128CST 

Barton County 

9 W Lamar 03 2128CST 

Barton County 

Lamar 03 2205CST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


42 38 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 


Hail (0.75) 

Hail (0.75) 

Hail (1.00) 

Hail (0.88) 

Hail (1.75) 


Hail (1.00) 

December 1999


Lawrence County 

Bowers Mill 03 2205CST 

Newton County 

Seneca 03 2215CST 


Miller 03 2235CST 

Jasper County 

Fidelity 03 2245CST 

Jasper County 

Carthage 03 2245CST 

Dade County 

Pennsboro 03 2245CST 

Greene County 

Walnut Grove 03 2315CST 

Polk County 

Eudora 03 2325CST 

Dade County 

5 S Lockwood 03 2350CST 

Polk County 

Half Way 03 2355CST 

Miller County 

Eldon 04 0010CST 

Miller County 

Aurora Spgs 04 0019CST 


Miller 04 0020CST 

Camden County 

Osage Beach 04 0022CST 

MONTANA, Central 

MTZ011 Blaine / Chouteau / Hill 

06 0440MST 

Chinook 11S. 

MTZ015 Gallatin / Madison 

11 0500MST 

1700MST 

10 inches at Hebgen Dam. 



Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


15 0100MST 

1700MST 

20 inches Hebgen Dam...9 inches Big Sky 2WNW. 

MTZ009 Rocky Mountain Front 

15 1900MST 

0 

16 0200MST 

Babb and 9SW Dupuyer...G66 kt at Browning at 2103 MST. 

MTZ010 Eastern Glacier / Eastern Pondera / Toole / Liberty 

15 1900MST 

16 0200MST 

CTB ASOS. 

MTZ012 Cascade / Eastern Teton 

15 2200MST 

16 0400MST 

GTF ASOS...56kt Stockett 7S 308MST. 

43 39 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

60K 

30K 

40K 

Hail (0.75) 

Hail (0.88) 

Hail (1.75) 

Hail (0.88) 

Hail (0.75) 

Hail (0.88) 

Hail (0.75) 

Hail (0.75) 

Hail (1.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.88) 

Hail (0.75) 

Hail (0.75) 


Heavy Snow 

Heavy Snow 




December 1999

MONTANA, Central 


15 2245MST 

Chinook 11S. 

MTZ012 Cascade / Eastern Teton 

16 1234MST 

Millegan. 

MTZ010 Eastern Glacier / Eastern Pondera / Toole / Liberty 

18 0255MST 

CTB ASOS steady winds. 


18 0855MST 

Chinook 11S. 


MONTANA, East 

MTZ016>018-020- 

022>024-026 

19 1700MST 

20 1700MST 

15inches Hebgen Dam. 

18 

19 

2200MST 

1200MST 

MONTANA, South 

MTZ028 Wheatland 

MTZ028>029-034- 

038 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

8K 





Heavy Snow 

Phillips - Valley - Daniels - Roosevelt - Garfield - Mccone - Richland - Prairie 

12 1600MST 

0 0 

13 0000MST 

Sustained winds as high as 55 mph were reported at the airport in Livingston. 

Wheatland - Musselshell - Stillwater - Big Horn 



15 1530MST 

0 0 


16 0300MST 

A strong slow moving low pressure system over Southern Alberta combined with high pressure over the Great Basin to produce 

strong pressure gradients over South Central Montana from the afternoon of the 15th to the early morning hours of the 16th. The 

airport in Livingston reported a peak wind gust of 76 mph. There were several other reports of wind gusts between 60 and 70 mph. 

MTZ028-034-038 Wheatland - Stillwater - Big Horn 

MTZ031>033- 

036>038 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


17 1900MST 

0 0 


18 0600MST 

Strong southwest winds picked up across South Central Montana ahead of a Pacific cold front during the evening of the 17th and the 

morning of the 18th. Sustained winds of 51 mph were reported at the airport in Livingston, and gusts as high as 77 mph were 

reported in Fort Smith and 61 mph in South Bridger. In Livingston, at least one building had its roof blown off. 

Rosebud - Custer - Fallon - Powder River - Carter - Big Horn 

18 2200MST 

0 0 


19 0600MST 

An arctic cold front crossed southern Montana on the evening of the 18th. Behind the front, gusty northwest winds were common 

throughout southeast Montana. Gusts as high as 77 mph were reported in Broadus and 60 mph in Ekalaka. Miles City had sustained 

winds of 52 mph and several other locations in southeast Montana had sustained winds between 40 and 50 mph. The winds also 

produced blowing snow which forced the closure of several highways because of brief whiteout conditions. 

MONTANA, West 

MTZ001-006 Kootenai/Cabinet Region - Bitterroot / Sapphire Mountains 

02 0700MST 

2000MST 

Twin Lakes- 8 inches of snow 

Bear Mountain- 7 inches of snow 

Stahl Peak- 12 inches of snow 

44 40 

0 

0 

Heavy Snow 

December 1999

MONTANA, West 

MTZ001>002-004- 

006-043 

Kootenai/Cabinet Region - West Glacier Region - Lower Clark Fork Region - Bitterroot / Sapphire 

Mountains - Blackfoot Region 

06 1015MST 

07 0700MST 

Banfield MTN- 8 inches of snow 

Flattop MTN- 6 inches of snow 


Lookout- 8 inches of snow 


Stuart MTN- 6 inches of snow 

Hoodoo Basin- 14 inches of snow 

Hawkins Lake- 6 inches of snow 

Lolo Pass- 12 inches of snow 

MTZ002-006 West Glacier Region - Bitterroot / Sapphire Mountains 

09 1000MST 

10 1000MST 

Moss Peak- 7 inches of snow 


Noisy Basin- 13 inches of snow 


Swan Lake- 7.5 inches of snow 

MTZ002-004-043 West Glacier Region - Lower Clark Fork Region - Blackfoot Region 

MTZ001>002-004- 

006-043 

MTZ001>002-004- 

006-043 

MTZ001>002-004- 

006-043 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


11 0300MST 

12 1000MST 


Noisy Basin- 7 inches of snow 

Hoodoo Basin- 7 inches of snow 


12 0415MST 

13 0350MST 

Banfield Mountain- 6 inches of snow 


Flattop Mountain- 14 inches of snow 

Lookout Pass- 12 inches of snow 


Twelve Mile Creek- 6 inches of snow 


0 

0 

0 

0 

0 

0 

0 

0 

Heavy Snow 

Heavy Snow 

Heavy Snow 



14 2200MST 

15 2145MST 

Libby 32 SE- 7 inches of snow 

Big Mountain- 12 inches of snow 

Noise Basin- 9 inches of snow 

Flattop Mountain- 9 inches of snow 

Swan Lake- 6 inches of snow 


Heron 2 NW- 6 inches of snow 

Noxon- 12 inches of snow 

Stuart Mountain- 7 inches of snow 

North Fork Jocko- 14 inches of snow 


Lost Trail Ski Resort- 16 inches of snow 

0 

0 

Heavy Snow 



17 1530MST 

18 0810MST 


0 

0 

Heavy Snow 



45 41 

Heavy Snow 

December 1999

MONTANA, West Hoodoo Basin- 11 inches of snow 




NEBRASKA, Central 

NEBRASKA, East 



NEBRASKA, Extreme Northeast 

NEZ013>014 Dixon - Dakota 

NEBRASKA, Extreme Southwest 

01 0000CST 

0 0 

Drought 

31 2359CST 



drying. There were a few grass fires, and agricultural concern was mounting for the future growing season. 


NEBRASKA, South Central 

NEZ047 Howard 

NEBRASKA, West 

14 0600CST 

0 0 25K 0 Winter Storm 

2200CST 

A quick moving storm system slid across the area and dumped the seasons first measurable snowfall. Most areas received 1 to 3 

inches of snow. However, strong north winds gusting to 40 mph caused significant blowing snow and many roads became ice 

covered. A North Loup man was killed when the car he was driving collided head-on with another vehicle near St. Paul. The ice 

covered roads may have contributed to the accident. 


NEVADA, North 

NVZ031 N Elko Cnty 

NVZ031>032-034- 

036 

02 0900PST 

2100PST 

0 0 

Heavy Snow 

Heavy snow fell across northern Elko county with both Wildhorse and Jack Creek Lodge receiving 5 inches of snow. 

N Elko Cnty - Sw & Sc Elko - Ruby Mountains/E Humboldt Range - N Lander & N Eureka 

07 1200PST 

2330PST 

0 0 

Heavy Snow 

A winter storm brought heavy snow to parts of northern Nevada. Some snowfall totals include: 5 inches at Emigrant Pass; 5 inches at 

Wildhorse and Spring Creek; 9 inches at Lamoille Canyon; and 12 inches at Green Mountain. 

NVZ030>031 Humboldt - N Elko Cnty 

12 

13 

2000PST 

0800PST 

NVZ030-032 Humboldt - Sw & Sc Elko 

NEVADA, South 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

Heavy Snow 

13 0430PST 

0 0 1.5K 

High Wind 

0645PST 

A vigorous winter storm brought high winds and heavy snow to portions of northern Nevada. A mobile home in Grass Valley just 

south of Winnemucca had part of its roof blown off with the swamp cooler blown into the back yard about 50 feet from the house. In 

Elko a caller to a local radio station reported the wind picked up a shed and shattered it. An NWS employee had his deck furniture 

blown into the middle of his yard including his gas grill. Four inches of snow was reported at both McDermitt and Jarbidge. 


46 42 

December 1999

NEVADA, West 

NVZ003 Greater Reno/Carson City/Minden Area 

02 1020PST 

0 0 

Spotter report of wind gust to 61mph recorded 5 miles E of Gardnerville. 


02 1020PST 

0 0 

National Weather Service Office in Reno recorded a wind gust of 54 knots. 


02 1320PST 

0 0 0.50K 

Spotter in Minden reported wind gust to 73 mph. A fence was blown down. 


02 1337PST 

0 0 

Spotter report of wind gust to 62 mph 6 miles SW of Gardnerville. 

NEW HAMPSHIRE, North and Central 

NHZ010-013>014 Strafford - Interior Rockingham - Coastal Rockingham 

NHZ008-010- 

013>014 

NHZ001>010- 

013>014 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 





01 0330EST 

1900EST 

0 0 

Strong Winds 

Strong, gusty, north winds developed across southeastern New Hampshire on the west side of an intensifying ocean storm. The peak 

wind gust at Portsmouth was 35 mph (measured). No damage reports were received. 

Merrimack - Strafford - Interior Rockingham - Coastal Rockingham 

10 0600EST 

0 0 

Freezing Fog 

0800EST 

Freezing fog caused black ice to form on the roads and greatly reduced visibilities across southeastern New Hampshire leading to 

numerous accidents. In one 14-vehicle accident on Route 101in Exeter, the scene was described as looking like someone rolled a 

bowling ball down the highway knocking cars off the roadway. Only one of the 14 vehicles was reported to be drivable after the 

accident, but no serious injuries were reported. Numerous other accidents were reported throughout the area, including a 5-vehicle 

accident on Route 101 in Epping. 

Northern Coos - Southern Coos - Northern Grafton - Northern Carroll - Southern Grafton - 

Southern Carroll - Sullivan - Merrimack - Belknap - Strafford - Interior Rockingham - Coastal 

Rockingham 

11 0500EST 

0 3 

Strong Winds 

12 0500EST 

Strong, gusty, northwest winds developed across New Hampshire on the west side of an intensifying low pressure system over the 

Canadian maritimes. The wind downed trees and limbs onto power lines causing scattered power outages. Downed trees damaged 

houses and vehicles, including over a dozen houses in Meredith. Fallen trees also temporarily blocked some roadways; Route 16 

below Pinkham notch was closed for more than 19 hours. Two employees of the State Department of Transportation were injured 

when trees fell on their vehicles near Jackson. Another person was injured when a tree fell on his vehicle near Chocorua Lake. 

Approximately 17,000 customers were affected by power outages. The peak wind gust in Concord was 52 mph (measured). 

NHZ001>010-013 Northern Coos - Southern Coos - Northern Grafton - Northern Carroll - Southern Grafton - 

Southern Carroll - Sullivan - Merrimack - Belknap - Strafford - Interior Rockingham 

20 1200EST 

2100EST 

0 0 

Freezing Rain 

Freezing rain developed over much of New Hampshire, except along the immediate coast, during the afternoon of Monday the 20th 

and caused numerous accidents. By late evening, temperatures had warmed to above freezing, although some roads reportedly 

remained icy throughout the night. 

NEW HAMPSHIRE, Southern 

NHZ011>012 Cheshire - Hillsborough 

11 1200EST 

2000EST 

0 0 

Strong Wind 

An intensifying low pressure system in the Gulf of Maine brought strong northwest winds to Cheshire and Hillsborough Counties in 

southern New Hampshire. Wind gusts of 40 to 50 mph were common during the afternoon and early evening. There were scattered 

reports of downed tree limbs and power lines, with one tree down in Jaffrey. 

NHZ011>012 Cheshire - Hillsborough 

20 0900EST 

2100EST 

0 0 

Freezing Rain 

Light freezing rain fell in the valleys of southwest New Hampshire, as a result of rain falling into a shallow layer of below freezing air 

at the surface. The resultant light coating of ice formed areas of "black ice" on many roadways, causing dozens of accidents. 

47 43 

December 1999

NEW HAMPSHIRE, Southern 

Portions of Interstate 93, the Everett Turnpike, and Routes 9 and 101 had to be closed for a time due to icing and accidents. Many of 

the accidents reported were in Manchester and Nashua. 

NEW JERSEY, Northeast 


NEW JERSEY, South and Northwest 

NJZ001 Sussex 

NJZ007>010- 

012>019 

Atlantic County 

10 

11 

1900EST 

0700EST 


14 1600EST 

Burlington County 


14 1600EST 

Camden County 


14 1600EST 

Cumberland 

County 


14 1600EST 

Gloucester County 


14 1600EST 

Hunterdon County 


14 1600EST 

Mercer County 


14 1600EST 

Salem County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 


Warren - Morris - Hunterdon - Somerset - Middlesex - Western Monmouth - Eastern Monmouth - 

Mercer - Salem - Gloucester - Camden - Burlington 

10 1900EST 

0 0 

Wind 

11 0700EST 

A strong cold front moved through New Jersey during the early evening of the 10th. The front was accompanied by strong gusty 

northwest winds. As a low pressure system intensified as it moved across northern New England into the Canadian Maritimes and a 

large high pressure system built east from the Northern Plains and the Great Lakes, gusty northwest winds continued throughout 

most of the night. The strongest wind gusts were in the northern part of the state, especially in the higher terrain of Sussex County. 

Peak wind gusts included 60 mph at High Point (Sussex County), 58 mph in Sparta (Sussex County), 51 mph in Hazlet (Monmouth 

County), 37 mph in Trenton (Mercer County) and 36 mph in Somerville (Somerset County). 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 


0 0 

Heavy Rain 

14 1600EST 



Peninsula during the day on the 14th and moved well offshore that night. The slow movement by the low gave most of southern New 

Jersey and parts of west central New Jersey about 24 hours of steady rain from noon on the 13th into the mid afternoon of the 14th. 

The heaviest rain (about two-thirds of the storm total) fell during the morning and early afternoon of the 14th. Storm totals averaged 

around an inch and a half. There was some urban and poor drainage flooding, but no other problems were reported. Storm totals 

included 2.48 inches in Estell Manor (Atlantic County), 1.90 inches in West Deptford (Gloucester County), 1.86 inches in Mount 

Laurel (Burlington County) and Verga (Gloucester County), 1.84 inches in Lumberton (Burlington County), 1.80 inches in Somerdale 

(Camden County), 1.76 inches in New Lisbon (Burlington County), 1.67 inches in Westampton (Burlington County), 1.53 inches in 

Cherry Hill (Camden County), 1.50 inches in Hamilton Square (Mercer County), 1.43 inches in Seabrook (Cumberland County), 

Washington's Crossing (Mercer County) and Wertsville (Hunterdon County) and 1.37 inches in Millville (Cumberland County). 

Storm totals in the rest of New Jersey were around an inch. 

48 44 

December 1999

NEW JERSEY, South and Northwest 

NJZ001 Sussex 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


14 0900EST 

0 0 

Wintry Mix 

1800EST 



Peninsula during the day on the 14th and moved well offshore that night. At the same time on the 14th, a large high pressure system 

became stronger as it moved across nearby Canada. The northeast flow around this high brought colder air into Northwest New 

Jersey. As precipitation moved back into the region during the morning of the 14th, it fell as a mixture of sleet, freezing rain and 

plain rain over the higher terrain in the county. Most valley areas were warm enough for precipitation to fall as rain. Untreated roads 

and walkways became very slippery. There was also a slight accretion of ice on trees and power lines. During the evening, enough 

warm air moved in to raise temperatures above freezing. 

NJZ023>024 Western Cape May - Eastern Cape May 

14 1200EST 

0 0 

0 Coastal Flooding 

1400EST 




became stronger as it moved across nearby Canada. The northeast flow around these two systems produced higher than normal tides 

along the shore. The afternoon high tide on the 14th at the Cape May Ferry Terminal just reached the threshold for minor tidal 

flooding (6.7 feet above mean lower low water) from 1212 p.m. EST through 124 p.m. EST. All the other main tide gages along the 

New Jersey shore remained below minor tidal flooding levels. No serious problems were reported. 

NJZ001-007>009 Sussex - Warren - Morris - Hunterdon 

20 0300EST 

0 0 

Freezing Rain 

1400EST 

A high pressure system that moved across the northern Middle Atlantic States and New England on the weekend of the 18th and 19th 

pumped in a cold, dry air mass into the region. On the 19th, a weak low pressure system developed along the South Carolina coast 

and pumped moisture northward into the region. While the air aloft was warm enough for precipitation to fall as rain, temperatures 

near the ground were still below freezing. As precipitation spread north across Northwest New Jersey between 3 a.m. and 6 a.m. 

EST on Monday the 20th, it began as light freezing rain. The cold air tenaciously held on and took the better part of the morning for 

readings to get entirely above the freezing mark in Hunterdon, Morris and Warren Counties and into the middle of the afternoon for 

Sussex County. Nearly a quarter of an inch of ice accrued in some of the valleys of Sussex County before the change to plain rain 

occurred. Driving and walking on untreated surfaces were treacherous. 

NEW MEXICO, Central and North 

NMZ004>007-013 Sangre De Cristo Mountains - Northeast Highlands - Harding - Far Northeast Plains - Quay 

03 1600MST 

0 0 

Heavy Snow 

04 1800MST 

Heavy snow of 6 to 9 inches was reported across the north central mountains. Heavy snow of 3 to 7 inches also developed in the 

northeast plains while Quay County measured 8 to 12 inches along the Caprock. 

NMZ010>012-018 Sandia/Manzano Mountains - Central High Plains/Estancia Valley County - Conchas 

Lake/Guadalupe - De Baca 

08 1800MST 

0 0 

Heavy Snow 

09 0600MST 

A swath of heavy snow developed across the central highlands eastward into the east central plains. Up to 8 inches of fresh snow 

was estimated across the southern Manzano Mountains. Satellite trends and isolated measurements indicated amounts of 4 to 6 

inches over the rangeland from Corona in northern Lincoln County east into southern De Baca, northeast Chaves and southern 

Roosevelt Counties. 

NMZ016>017 Lincoln County High Plains/Hondo Valley - Capitan/Northern Sacramento Mountains 

24 2100MST 

0 0 

Heavy Snow 

25 1500MST 

An upper level low which had remained stalled over northern Mexico for nearly 36 hours moved slowly northward producing heavy 

snow of 7 to 12 inches across the Sacramento Mountains and adjacent highlands of south central New Mexico late on Christmas Eve 

and Christmas morning. 

NEW MEXICO, South Central and Southwest 

NMZ025 Southern Sacramento Mountains 

25 0230MST 

1900MST 

0 0 

Heavy Snow 

A winter storm dumped 14 to 16 inches of snow on the southern Sacramento mountains of south central New Mexico. A white 

Christmas was quite welcome during the area's second consecutive dry winter . 

49 45 

December 1999

NEW MEXICO, Southeast 

NMZ027 Guadalupe Mountains Of Eddy County 

08 

14 

1600MST 

1900MST 


0400MST 

1100MST 


18 1300MST 

1600MST 

Sustained Wind 


24 1130MST 

1300MST 



0 

0 

0 

0 

0 

0 

0 

0 





24 2100MST 

0 0 

Heavy Snow 

25 0700MST 

An upper level storm system moving to the northeast dumped 12 inches of heavy/wet snow on the Queen community. 

NEW YORK, Central 

NYZ009-018- Northern Onedia - Onondaga - Madison - Southern Oneida 

036>037 

26 1700EST 

0 0 

Heavy Snow 

27 1700EST 

An arctic air mass in the wake of a strong cold front brought locally heavy lake effect snow to Oneida, Onondaga and Madison 

counties. Specific snowfall reports included: Baldinsville 12"; Clay 9"; Morrisville 8.4"; Cazenovia 7"; and Boonville 8". 

NEW YORK, Coastal 

NYZ068-070 Putnam - Northern Westchester 

11 

NYZ067 Orange 

NEW YORK, East 

NYZ032>033-039- 

041>043 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0500EST 

1000EST 

0 

0 


The combination of a strong low pressure system over Northern New England and a strong high pressure system over the midwest 

produced strong and gusty northwest winds across the area. 

Estimated wind gusts of at least 58 mph downed numerous trees and utility poles across Putnam and Northern Westchester Counties. 

Tree limbs were strewn across and blocked many roads in this area. Local electric utility companies reported almost 1500 customers 

without power as a result of these high winds. 

20 

0700EST 

0900EST 

0 

0 

Light freezing rain coated streets across the area which resulted in many traffic accidents and personal injuries. Starting at 7:26 am, 

the New Windsor Police Department logged roughly one accident report every 3 minutes for over 1 hour. However, no serious 

injuries were reported. 

Northern Herkimer - Hamilton - Fulton - Northern Saratoga - Warren - Washington 

20 1300EST 

0 0 

Freezing Rain 

1700EST 

A weak low pressure moved north along the eastern seaboard on Monday morning December 20. Rain was associated with this 

system. However surfaces temperatures in sheltered valleys north of the Mohawk River in eastern New York were around or a little 

below freezing. As a result, the rain froze in the these spots and made surfaces very slippery. Roads became slippery at the tail end of 

the morning commute to work. The freezing rain was responsible for numerous vehicular accidents. Many accidents were noted from 

Exit 12 and points north, on the Adirondack Northway. There were minor injuries, but not major ones reported to the National 

Weather Service. 

50 46 

Ice 

December 1999

NEW YORK, North 

NYZ028 Northeast Clinton 

NYZ030 Southern Franklin 

11 0900EST 

0 0 10K 

Light Snow 

1500EST 

An area of low pressure intensified over northern Maine Friday night (December 10, 1999) and moved into New Brunswick, Canada 

on Saturday (December 11, 1999). Moisture wrapped around this system with snow across the area. Heaviest snow fell in the 

Adirondacks. Rain Friday night mixed with and changed to snow early Saturday. The snow was wet with gusty winds, before tapering 

off by late Saturday afternoon and evening. Across northeast Clinton county, between 2 and 6 inches of snow fell with 6 inches 

reported in Keeseville. 

11 0900EST 

0 0 10K 

Light Snow 

1500EST 




off by late Saturday afternoon and evening. Across southern Franklin county, generally 3 to 6 inches of snow fell with 6 inches 

reported in the Saranac Lake area. 

NYZ029 Southern St. Lawrence 

NYZ031 Southwest Clinton 

NYZ034 Western Essex 

NYZ030>031- 

034>035 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


11 0900EST 

0 0 5K 

Light Snow 

1500EST 




off by late Saturday afternoon and evening. Across southern St Lawrence county, generally 1 to 4 inches of snow fell. 

11 0900EST 

0 0 10K 

Light Snow 

1500EST 




off by late Saturday afternoon and evening. Across southwest Clinton county, around 6 inches of snow fell. 

11 0900EST 

0 0 20K 

Light Snow 

1500EST 




off by late Saturday afternoon and evening. Across western Essex county, between 6 and 12 inches of snow fell with the Lake Placid 

area reporting 12 inches. 

Southern Franklin - Southwest Clinton - Western Essex - Eastern Essex 

14 2000EST 

0 0 20K 

Light Snow 

15 0500EST 

A complex storm system moved across the region Tuesday night, December 14th and into Quebec on Wednesday, December 15th. 

A mixture of rain, snow and sleet during the evening of December 14th changed to light snow overnight . Generally between 3 and 6 

inches of snow fell across the area. In both Lewis (Essex county) and Tupper Lake (Franklin county) 6 inches of snow fell while 3 1/2 

inches fell in Ellenburg Depot (Clinton county). Roads were reported slippery throughout the area. 

NYZ026>029 Northern St. Lawrence - Northern Franklin - Northeast Clinton - Southern St. Lawrence 

14 2000EST 

0 0 4K 

Light Snow 

15 0500EST 



inches of snow fell across the area. A few snowfall accumulations included: Colton (St Lawrence county) 5 inches and 3 inches in 

Peru (Clinton county). Roads were reported slippery throughout the area. 

NYZ029 Southern St. Lawrence 

23 1000EST 

1500EST 

0 0 1K 

Light Snow 

Lake effect snow across southern St Lawrence county resulted in 3 inches at Wanakena, New York. 

51 47 

December 1999

NEW YORK, West 

NYZ007>008-010- Jefferson - Lewis - Erie - Wyoming - Chautauqua - Cattaraugus 

012-019>020 

NYZ006-006>007- 

010-019>020-020 

16 1530EST 

0 0 46K 

Heavy Snow 

17 0500EST 

Cold air crossing the Great Lakes produced lake effect snows downwind of Lakes Erie and Ontario. 

Off Lake Erie the band of precipitation began across the Niagara Peninsula, but settled south quickly across the Buffalo metro area 

before settling over southern Erie, Wyoming and the northern portions of Chautauqua and Cattaraugus counties. Snow fell heavily in 

this area and thunder was reported. Snowfall totals were close to a foot with specific reports of 14" at Perrysburg; 11" at Springville, 

and 10" at Warsaw, Colden and Wales. 

Off Lake Ontario, the activity began as a mix of rain, sleet and snow showers. Lake bands became better organized overnight with 

one to two inches per hour over the Tug Hill. Specific snowfall reports included 17" at Montague, 10" at Highmarket and 6" at 

Lowville. 

Oswego - Jefferson - Erie - Chautauqua - Cattaraugus 

22 1710EST 

0 0 85K 

Heavy Snow 

24 0100EST 

The season's first lengthy lake effect episode began late on the 21st following a cold front. 

Off Lake Erie, snow fell at the rate of two inches per hour at the peak of the storm. The band drifted from the ski country to the 

southern suburbs of Buffalo. The activity shifted back south on the 23rd and reintensified overnight. The heaviest snows fell close to 

the lake shore as the winds were fairly light. Specific storm totals included: 20" Derby and Evans; 18" Stockton, Dunkirk and 

Hamburg; 17" Perrysburg; 12" Orchard Park and Silver Creek; 10" East Aurora; 9" Bennington; and 6" at Lancaster and Jamestown. 

East of Lake Ontario, a single intense band remained nearly stationary from the morning of the 22nd through the night of the 

23rd-24th. A narrow area along the Jefferson-Oswego county line received over three feet of snow. The heavy band shifted south 

across Oswego County by the early morning of the 24th. Storm totals included: 54" at Sandy Creek; 42" at Montague; 40" at 

Redfield; 37" at Mannsville; 31" at Lacona; 26" at Hooker; 25" at Adams; 24" at North Osceola; 15" at Lowville; 12" at Parish; and 

10" at Oswego. 

NYZ002>006-020 Orleans - Monroe - Wayne - Northern Cayuga - Oswego - Cattaraugus 

NORTH CAROLINA, Central 

26 2248EST 

0 0 61K 

Heavy Snow 

27 1950EST 

Locally heavy snowbands set up on a west to northwest wind off Lakes Erie and Ontario. The heaviest snow fell close to Lake Ontario 

from Orleans to Northern Cayuga Counties with six to nine inches across the Rochester metro area. Specific storm totals included: 

Ellicottville 11"; Highmarket 10"; Ontario 9"; Rochester and Little Valley 8"; Sandy Creek, Jamestown and Alfred 6". 


NORTH CAROLINA, Central Coastal 


NORTH CAROLINA, Extreme Southwest 


NORTH CAROLINA, North Coastal 


NORTH CAROLINA, Northwest and North Central 

NCZ001 Ashe 

NCZ018 Watauga 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


28 2130EST 

0 0 0 


29 0200EST 

The ASOS at the Ashe County Airpot, located 2 miles east-northeast of Jefferson, reported occasional wind gusts between 50 and 53 

knots from 930 PM on the 28th to 2 AM on the 29th. High winds also downed power lines across Ashe County. 

28 2310EST 

0 0 0 


29 0130EST 

During the late evening of the 28th and early morning of the 29th, the emergency manager in Boone estimated wind gusts of 50 

knots, downing several tree limbs. 

52 48 

December 1999

NORTH CAROLINA, South Coastal 


NORTH CAROLINA, Southwest 

NCZ034>037- 

054>057-066>072- 

082 

NCZ034>037- 

048>049-051>056- 

058>059-062>067 

NCZ033-050 Avery - Mitchell 

NCZ033 Avery 

Caldwell - Alexander - Iredell - Davie - Mcdowell - Burke - Catawba - Rowan - Polk - Rutherford - 

Cleveland - Lincoln - Gaston - Mecklenburg - Cabarrus - Union 

13 1900EST 

0 0 

Fog 

14 0800EST 

Dense fog blanketed the area, causing some traffic accidents and at least one indirect traffic fatality. The one indirect fatality occurred 

in Iredell county, near Mooresville. 

Caldwell - Alexander - Iredell - Davie - Madison - Yancey - Swain - Haywood - Buncombe - 

Mcdowell - Burke - Catawba - Graham - Northern Jackson - Macon - Southern Jackson - 

Transylvania - Henderson - Polk - Rutherford 

24 0800EST 

0 0 

Snow 

1600EST 

Low pressure moving east-southeast across Tennessee and North Carolina produced light snow from just after sunrise through much 

of the afternoon. The only significant accumulations were in the high mountains north and west of Asheville, where 1 to 3 inches of 

snow fell. A couple of mountain peaks reported 4 or 5 inches. A dusting to and inch or so of snow in the rest of the mountains caused 

extremely slick roads and numerous traffic accidents (69 in a 12 hour period) were reported. Enough Christmas Eve snow fell in parts 

of the foothills and piedmont to be noticeable, but any light accumulation melted quickly. 

24 0800EST 

1600EST 

0 0 

Heavy Snow 

Northwest upslope flow in the wake of the same low pressure system responsible for bringing 1 to 3 inches of snow to much of the 

mountains of North Carolina, helped enhance snowfall amounts slightly in Avery and Mitchell counties. Total snow accumulations of 

4 inches were common across the northern half of Mitchell county and much of Avery county. 

26 1800EST 

0 0 


27 0400EST 

Gusty winds occurred following a cold front and were high enough to cause some damage. Two hangars under construction at the 

Avery County Airport collapsed. 

NCZ048>050-053 Madison - Yancey - Mitchell - Buncombe 

NCZ033-053 Avery - Buncombe 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


26 1800EST 

0 0 

Gusty Wind 

27 0400EST 

Gusty winds occurred following a cold front. Sustained winds and gusts nearly reach "high wind" criteria and a few instances of 

downed trees and minor damage were reported. 

28 2000EST 

0 0 

Gusty Winds 

29 0200EST 

Gusty winds occurred following another cold front. Sustained winds reached about 30 mph with infrequent gusts to over 60 mph at 

times. 

NORTH DAKOTA, Central and West 

NDZ003>005- Renville - Bottineau - Rolette - Ward - Mchenry - Pierce - Mclean - Sheridan - Wells - Foster 

011>013-021>023- 

025 

19 0300CST 

0 0 

Blizzard 

1500CST 

A strong low pressure system moved rapidly out of Alberta Canada and raced along the southern Canadian border. Behind the 

system a strong arctic cold front was ejected south into the northern plains and produced gradient winds out of the northwest 

at 40 to 60 mph. Snowfall with the system ranged from 1 to 3 inches. The strong winds produced visibilities less than 1/4 mile 

in most areas to near zero in open country. Temperatures fell to the single digits by mid afternoon. The cold air combined 

with the wind generated wind chills of 40 to 60 below zero. 

NORTH DAKOTA, East 

NDZ006>008- Towner - Cavalier - Pembina - Benson - Ramsey - Walsh 

014>016 

19 

0530CST 

2130CST 

53 49 

0 

0 

Blizzard 

December 1999

NORTH DAKOTA, East 

A low pressure system tracked across southern Canada, producing blizzard conditions across portions of northeast North Dakota and 

extreme northwest Minnesota. A few schools closed for the day, due to the poor visibility. 

NDZ008-016-027 Pembina - Walsh - Grand Forks 

OHIO, East 

25 1800CST 

2200CST 

0 0 


A cold front dropped south out of Manitoba and Saskatchewan, with strong winds behind it. With the warm temperatures and little 

snow cover, blowing snow was not a problem. 


OHIO, North 

OHZ013>014-023 Geauga - Ashtabula - Trumbull 

15 2000EST 

2200EST 

0 0 50K 

High Wind 

Southwest winds with gusts in excess of 50 mph affected Northeast Ohio late in the afternoon. Many trees and power poles were 

downed across Trumbull, Ashtabula and Geauga counties. 

OHZ011>014 Cuyahoga - Lake - Geauga - Ashtabula 

23 0500EST 

0 0 575K 

Heavy Snow 

24 0700EST 

Cold northwest winds blowing across Lake Erie resulted in the development of lake effect snow bands just before sunrise on the 23rd. 

Heavy snow first fell near the lakeshore in Lake and Ashtabula Counties. Snowfall rates of 2 to 3 inches per hour were observed with 

total accumulations in these areas of 15 to 25 inches in a little more than 12 hours. Many roads had to be temporarily closed with 

snarled traffic on roads kept open. Scattered power outages were also reported. The heaviest snow bands shifted to inland sections 

of Ashtabula County late on the 23rd and finally into Geauga and Cuyahoga counties early on the 24th. Accumulations of 6 to 10 

inches were measured over the eastern half of Cuyahoga County with up to a foot of snow in Geauga County. Snow totals across 

inland sections of Lake and Ashtabula Counties were generally 20 to 24 inches with isolated reports of up to 3 feet. 

OHZ013>014 Geauga - Ashtabula 

OHIO, Northwest 

OHIO, Southeast 

OHIO, Southwest 

OKLAHOMA, Eastern 

Osage County 

27 1200EST 

0 0 60K 

Heavy Snow 

28 0000EST 

Lake effect snow bands developed around midday and tapered off late in evening. Snowfall accumulations ranged from 4 to 8 inches 

in Geauga County and inland portions of Ashtabula County. 




8 W Shidler 02 2050CST 

Thunderstorm winds blew down three power poles. 

Pawnee County 

Cleveland 02 2100CST 

Osage County 

4 W Hominy 02 2110CST 

Creek County 

Bristow 02 2117CST 

Osage County 

3 W Pershing 02 2117CST 

Creek County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


8 SW Mannford 02 2125CST 

Thunderstorm winds caused tranformers to pop. 

54 50 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

1.5K 

1.5K 


Hail (0.88) 

Hail (0.75) 

Hail (0.88) 

Hail (1.00) 


December 1999


Creek County 

4 W Bristow 02 2133CST 

Creek County 

Bristow 02 2145CST 

Creek County 

6 W Kellyville 02 2145CST 

Dime size hail fell at Heyburn State Park. 

Washington 

County 

Dewey 02 2147CST 

Tulsa County 

5 N Tulsa 02 2157CST 

Osage County 

6 E Prue 02 2200CST 

Osage County 

6 E Prue 02 2200CST 

Thunderstorm winds blew a tree down. 

Creek County 

Slick 02 2215CST 

Nowata County 

Delaware 02 2215CST 

Rogers County 

5 NW Verdigris 02 2230CST 

Tulsa County 

3 E Owasso 02 2230CST 

Okmulgee County 

1 N Nuyaka 02 2250CST 

Tulsa County 

Broken Arrow 02 2300CST 

Dime hail fell near 131st street and Aspen. 

Delaware County 

3 NW Jay 02 2305CST 


Grove 02 2308CST 

Okfuskee County 

Haydenville 02 2310CST 

Mayes County 

6 SW Pryor 02 2318CST 

Mayes County 

Chouteau 02 2330CST 

Muskogee County 

3 N Muskogee 03 0000CST 

Wagoner County 

2 E Tullahassee 03 0000CST 

Latimer County 

4 E Wilburton 03 0030CST 

Thunderstorm winds blew a tree down. 

Cherokee County 

Cookson 03 0057CST 

0 

Thunderstorm winds blew several large tree limbs down. 

Le Flore County 

5 E Panama 03 0103CST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


55 51 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0.10K 

0.10K 

0.10K 

Hail (0.88) 

Hail (1.00) 

Hail (0.75) 

Hail (1.00) 


Hail (0.75) 


Hail (0.75) 


Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 



Hail (0.75) 

December 1999


Sequoyah County 

3 N Sallisaw to 

5 NE Sallisaw 

03 0105CST 

0 0 

Thunderstorm winds blew 27 trees down along State Highway 101. 


Roland 03 0107CST 

0 


Adair County 

5 SE Stilwell 03 0120CST 

0 



Bernice 03 2005CST 

Ottawa County 

1 S Fairland 03 2010CST 

Tulsa County 

1 N Collinsville 03 2053CST 

Tulsa County 

Tulsa 03 2053CST 

0 

Nickel size hail fell near 45th place north and delaware. 

Rogers County 

2 W Oologah 03 2100CST 

Tulsa County 

Owasso 03 2102CST 

Nowata County 

Alluwe 03 2130CST 

Craig County 

Vinita to 

5 E Vinita 

03 2133CST 

Ottawa County 

2 SW Miami 03 2140CST 

Ottawa County 

5 E Afton 03 2147CST 

Craig County 

Centralia 03 2200CST 


5 N Grove 03 2210CST 

Ottawa County 

5 S Wyandotte 03 2215CST 

Ottawa County 

5 SE Wyandotte 03 2225CST 

Okmulgee County 

Nuyaka 03 2230CST 

Creek County 

4 N Slick 03 2239CST 

Creek County 

4 W Sapulpa 03 2240CST 

0 0 

Quarter size hail reported at the intersection of highways 66 and 117. 

Tulsa County 


0 0 

Nickel size hail reported at the intersection of Interstate 244 and Utica. 

Tulsa County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



0 0 

Dime size hail was reported at the intersection of 55th street and Union. 

56 52 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

2.7K 

0.10K 

0.10K 




Hail (1.00) 

Hail (1.00) 

Hail (1.00) 

Hail (0.88) 

Hail (1.00) 

Hail (0.88) 

Hail (0.88) 

Hail (0.88) 

Hail (0.75) 


Hail (0.75) 

Hail (0.88) 

Hail (0.88) 

Hail (1.00) 

Hail (0.75) 

Hail (1.00) 

Hail (1.00) 

Hail (0.88) 

Hail (0.75) 

December 1999


Rogers County 

4 SW Catale 03 2256CST 

Dime size hail fell in Chelsea. 

Tulsa County 

Owasso 03 2259CST 

0 0 

Dime size hail was reported at the corner of 90th street north and 120th east avenue. 

Pawnee County 

Cleveland 03 2300CST 

Rogers County 

4 SW Catale 03 2315CST 

2325CST 

Dime size hail covered the ground in Chelsea. 

Tulsa County 

5 S Glenpool 03 2323CST 

Dime size hail fell in Liberty. 

Mayes County 

4 NNW Adair 03 2330CST 

Tulsa County 


Creek County 

4 N Slick 03 2339CST 

Tulsa County 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Hail (0.75) 

Hail (1.00) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (1.00) 


0 0 

Hail (0.88) 

Nickel size hail was reported by an off duty National Weather Service employee at the corner of 86th street and 145th east avenue. 

Tulsa County 


0 0 50K 

Golf ball size hail was reported at the corner of 81st street and Oak avenue. 

Wagoner County 

3 N Oneta 03 2341CST 

Osage County 

10 SE Prue 03 2345CST 

Craig County 

Vinita 03 2350CST 

2357CST 

Qarter to half dollar size hail fell in Vinita. 

Pawnee County 

5 S Cleveland 04 0030CST 

0 

Thunderstorm winds blew the skirting off a mobile home. 

Ottawa County 

Fairland 04 0055CST 


2 E Bernice 04 0815CST 

Golfball size hail fell on Monkey Island. 


2 E Bernice 04 0815CST 

One tree blown down on Monkey Island. 


3 W Box 04 1024CST 

0 

Dime size hail fell on the southern end of Lake Tenkiller. 

Mayes County 

5 SE Pryor 03 2020CST 

Mayes County 

Pryor 03 2048CST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


57 53 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

50K 

1K 

20K 

0.10K 

Hail (1.75) 

Hail (0.75) 

Hail (0.75) 

Hail (1.25) 


Hail (0.75) 

Hail (1.75) 


Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

December 1999

OKLAHOMA, Extreme Southeast 

Mccurtain County 

Smithville 03 0335CST 

Numerous trees down. 

Mccurtain County 

Watson 03 0340CST 

Numerous trees down. 

OKLAHOMA, Panhandle 

OKZ003 Beaver 

8 NNW Indiahoma 02 1730CST 

0 

0 

0 

0 



04 0500CST 

1800CST 

0 0 

Heavy Snow 

Four inches of snow fell to the south of the city of Beaver. 

Strong upper low over southeastern New Mexico moved northeast during the day across the Texas South Plains region and then into 

southwestern Oklahoma by the early evening hours. Heavy snowfall occurred across the eastern Oklahoma panhandle. 

OKLAHOMA, Western, Central and Southeast 

Comanche County 

Kiowa County 

5 E Snyder 02 1730CST 

Tillman County 

Frederick 02 1750CST 


Hollister 02 1750CST 

Kingfisher County 

Kingfisher 02 1759CST 

0 

Hail was reported on the southwest side of Kingfisher. 

Caddo County 

4 N Apache 02 1810CST 

Caddo County 

8 NW Apache 02 1810CST 

Oklahoma County 

5 NW Edmond 02 1834CST 

Canadian County 

10 W El Reno 02 1835CST 

Logan County 

5 SW Seward to 02 1836CST 4 30 0 0 

1 SW Seward 

1840CST 

Refer to summary at end of Dec 2nd storm reports for more information. 

Caddo County 

2 W Cyril 02 1840CST 


1 W Lawton 02 1840CST 

Garfield County 

Enid 02 1840CST 

Logan County 

2 WSW Seward to 

1 SW Seward 

02 1840CST 

Logan County 

1.5 W Seward 02 1841CST 


5 W Fletcher 02 1842CST 

Logan County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


6 SW Guthrie to 02 1843CST 12 100 0 1 

7 N Guthrie 

1901CST 


58 54 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0.20K 

3K 

1K 

0.20K 

275K 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (1.75) 

Hail (0.75) 

Hail (1.75) 

Hail (0.75) 


Hail (0.88) 

Tornado (F1) 

Hail (0.75) 

Hail (0.75) 

Hail (1.75) 



Hail (0.75) 

Tornado (F2) 

December 1999



1 W Elgin 02 1850CST 

Hail was reported on Interstate 44. 


1 E Fletcher 02 1905CST 

Hail was reported on Interstate 44. 

Grady County 

Chickasha 02 1907CST 

Noble County 

Perry 02 1930CST 

Noble County 

5 SSE Perry to 02 1930CST 11 300 0 0 

8 NE Perry 

1945CST 


Grady County 

7 S Chickasha 02 1935CST 

Payne County 

1 E Lake Blackwell 02 1959CST 

Stephens County 

6 SW Marlow 02 2007CST 


Marlow 02 2010CST 


Comanche 02 2012CST 


Arcadia 02 2015CST 

Kay County 

4 E Ponca City 02 2019CST 


5 SE Duncan 02 2020CST 


Duncan 02 2020CST 

Hail was reported on the northeast side of Duncan. 



Kay County 

Kaw City 02 2027CST 



Hail was reported on Highway 7. 


Nicoma Park 02 2030CST 

Hail was reported on NE 23rd. 


Choctaw 02 2045CST 

Cleveland County 

Norman 02 2050CST 


Newalla 02 2100CST 

Seminole County 

3 NW Seminole 02 2122CST 

Pottawatomie 

County 

Mc Loud 02 2130CST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


59 55 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

38K 

1K 

0.50K 

Hail (1.00) 

Hail (1.75) 

Hail (0.75) 

Hail (1.75) 

Tornado (F1) 

Hail (0.88) 

Hail (0.75) 

Hail (1.00) 

Hail (0.75) 

Hail (1.00) 

Hail (0.75) 


Hail (1.25) 

Hail (0.75) 

Hail (1.00) 


Hail (1.00) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (1.00) 

Hail (0.75) 

December 1999


Garvin County 

Pauls Valley 02 2200CST 

Pottawatomie 

County 

Shawnee 02 2200CST 

Garvin County 

4 SW Paoli 02 2210CST 

0 

Hail was reported on Interstate 35 near mile marker 77. 

Garvin County 

Whitebead 02 2217CST 

Pottawatomie 

County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 

0 

0 

0 

0 

50K 

Hail (1.00) 

Lightning 

Hail (0.75) 

Hail (0.75) 


0 0 0.50K 


Severe thunderstorm formed first across portions western Oklahoma during the late afternoon of the 2nd and moved into the central 

Oklahoma during the evening. As these storms reached central Oklahoma, straight-line winds caused minor tree damage 5 miles 

northwest of Edmond in northwest Oklahoma County. At 1836 CST, a tornado formed 5 miles southwest of Seward in Logan 

County, near Western and Simmons Road where a shed was damaged. The tornado, rated F1, then tracked north-northeast for 4 miles 

before dissipating 1 mile southwest of Seward. Tree damage was observed at a home along Sante Fe Avenue, and a sign was 

damaged at Sante Fe and EW86 Road. The tornado continued north-northeast inflicting tree damage as it crossed EW85 Road 

between Santa Fe and Kelley, then dissipated between EW85 and EW84 Roads. Near the end of the tornado's path, a one-mile width 

of straight-line wind damage, consisting of scattered, light tree damage, was observed southwest of Seward along EW85 Road and 

between Sante Fe and Kelley Roads. Small trees were also damaged by straight-line winds near the intersection of Sante Fe and 

Seward Road, or about 1.5 miles west of Seward. 

Another tornado then formed in Logan County about 6 miles southwest of downtown Guthrie along Kelley Avenue and about 1.2 

miles south of Prarie Grove Road, where outbuildings received light damage. Very light damage was noted on Prairie Grove Road 

between Kelley and Broadway, and three power poles were downed along Industrial Road. The tornado crossed State Highway 33 

where power poles were again downed. As it crossed State Highway 33, the tornado moved into the Cimarron National Golf Course 

and tracked down the 16th fairway. There was widespread tree damage along the eastern-most four holes of the golf course, and light 

damage to an outbuilding on the fringe of the tornado's path. The tornado then moved into a neighborhood adjacent to the golf course 

where a number of homes were damaged. One house, located on Canyon Road, suffered significant damage (rated F2) with most of 

the roof removed and some light damage to the walls. There was a minor injury reported at this home where a woman was cut by 

flying glass as she ran to take shelter. Two adjacent houses suffered roof damage. The framing to one home under construction was 

knocked off-center, and another house under construction received roof damage. The homes in this area looked to be well-built and of 

typical construction for newer homes. As the tornado traveled north-northeast, an old farmhouse on College Avenue received some 

minor roof and wall damage before the tornado crossed the Cimarron River. On the north side of the river, a mobile home roof was 

peeled off, and a permanent home received some minor damage along EW76 Road just to the east of NS311 Road. From this point 

northeast, damage was confined to trees in this rural area of Logan County. The tornado is believed to have crossed US Highway 77 

once, and then dissipated in the Cimarron River Valley, traveling a distance of 12 miles. 

The third and final tornado of the day formed near EW55 Road and west of NS323 Road, or about 5 miles south-southeast of Perry in 

Noble County Oklahoma along North Stillwater Creek, producing tree damage. The tornado passed just west of the intersection of 

EW54 Road and NS323 Road, where a residential windmill and a hay barn were destroyed. Several 1500 pound cylindrical hay bales 

were blown 100 feet. The width of damage was estimated at 50 to 75 yards at this point. Sheet metal from the hay barn originally at 

this location was found 1/2 to 3/4 mile to the northeast along the west side of NS323 Road. Across the street (east) from the sheet 

metal remains of the hay barn, a metal frame/sheet metal exterior hay barn was pushed over to the north and the roof removed. One 

half mile north on EW53 Road, two wood utility poles were down. Sheet metal debris and grass caught in the barb wire fence 

indicated winds from the south-southwest. A total of 19 metal utility poles were blown over to the north along EW51 Road. The 

tornado crossed U.S. Highway 64 three miles east of downtown Perry, or at the intersection of NS324 Road. Damage width was 

estimated at 100 yards. A pole barn building used for auto repair was destroyed. Construction of this building consisted of 6x6 

wooden uprights embedded in cement with a sheet metal exterior. Most of the building was carried away with a small amount of 

debris deposited on the north side of the slab. The owner stated that some of the 6x6 uprights were rotted near the footings. Across 

NS324 Road to the east of the auto repair building, a sheet metal hay barn lost its roof, and several smaller outbuildings were 

destroyed. Across Highway 64 to the northwest, a home suffered minor tree damage; a satellite dish was blown over and bent, and 

there was major damage to an outbuilding which was pushed over from the southwest. The tornado continued north crossing EW49 

Road removing the roof from a hay barn and causing extensive tree damage. This F0 to low end F1 damage occurred in a 300 yard 

wide path at this point. One mile north on EW48 Road, a pole barn lost its roof and three walls, and extensive tree damage was noted. 

Two miles north, just south of EW46 Road, widespread, major tree damage was observed in a grove of trees along Black Bear Creek, 

and also on EW46 Road, where a hay barn filled with hay was destroyed. The tornado weakened rapidly after this point as it moved 

northeast, with the damage path ending somewhere just west of Red Rock Road (NS327 Road) and north of EW45 Road. 

60 56 

December 1999


Kiowa County 

Snyder 03 2223CST 

Kiowa County 

Mountain Park 03 2227CST 

Kiowa County 


Kiowa County 

Snyder 03 2229CST 

Kiowa County 

4 S Mountain Park 03 2235CST 

Kiowa County 

7 ENE Cooperton 03 2315CST 

Canadian County 

Northward in Kay County, straight-line winds destroyed a shed 4 miles east of Ponca City, and power lines were downed in Kaw 

City, while in Pottawatomie County power lines and 1 tree were downed at Wolverine and Leo Streets in downtown Shawnee, 

interrupting power to about 300 residences. Also in Shawnee, lightning struck a high-voltage conductor which fell onto a power line 

leading into several homes. Many of these homes received damage to appliances and electrical systems. 

Yukon 04 0514CST 

0 0 2.5K 

Lightning struck the carport roof of a real estate office on Mustang Road causing a small fire. 

OKZ004>007- 

009>011-016-021 

Garfield County 

04 

05 

1900CST 

0700CST 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

82K 

Hail (0.75) 

Hail (0.75) 

Hail (0.88) 

Hail (1.00) 

Hail (0.88) 

Hail (1.00) 

Lightning 

Harper - Woods - Alfalfa - Grant - Ellis - Woodward - Major - Custer - Beckham 

Heavy Snow 

Enid 05 0230CST 

0 0 3.5K 

Lightning 

A winter storm accompanied by heavy snow and strong winds affected northwest Oklahoma from the evening of the 4th through the 

early morning of the 5th. Although snow fell across all of northwest Oklahoma, the heaviest snow, averaging between 4 and 8 inches, 

fell in a band approximately 50 miles wide. The band of heaviest snow fell in a southwest to northeast orientated band, and was 

bordered on the northwest by a line from Laverne to Buffalo, both in Harper County, and on the southeast by a line from Reydon in 

Roger Mills County to Burlington in Alfalfa County. The largest amount of snow fell in Arnett, which is in Roger Mills County, 

where 10 to 12 inches of snow was reported. Snow amounts tapered off very quickly to between 1 and 2 inches east of a line from 

Reydon to Burlington. Approximately 150 power poles were downed during the storm, the majority of them in Harper, Ellis, 

Woodward, and Woods Counties. In the city of Woodward in Woodward County, a carport collapsed on Sante Fe Road, while in 

Enid, which is in Garfield County, lightning struck the roof of a house on Rimrock Rd. producing 2 holes. 

Kiowa County 

Lone Wolf 08 2018CST 


Cache 08 2027CST 


3 N Medicine Park 08 2030CST 

Kiowa County 

Gotebo 08 2037CST 

Washita County 

2 W Canute 08 2105CST 

Woodward 

County 

Mutual 08 2150CST 

Woodward 

County 

4 SE Quinlan 08 2203CST 

Caddo County 

3 NNW Anadarko 08 2205CST 

Kiowa County 

2 E Roosevelt 08 2205CST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


61 57 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Hail (1.00) 

Hail (1.00) 

Hail (1.75) 

Hail (0.88) 

Hail (0.75) 

Hail (0.88) 

Hail (1.00) 

Hail (0.88) 

Hail (0.75) 

December 1999


Kiowa County 

3 E Mountain Park 08 2209CST 

Kiowa County 


Kiowa County 

5 S Cooperton 08 2226CST 


5 S Meers 08 2322CST 

Caddo County 

Hydro 08 2330CST 

09 0000CST 


Medicine Park 08 2338CST 


11 N Grandfield 09 0123CST 


Velma 09 0240CST 

Pottawatomie 

County 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

8K 

Hail (0.88) 

Hail (0.88) 

Hail (1.00) 

Hail (0.88) 

Flash Flood 

Hail (0.88) 

Hail (0.75) 



0 0 12K 

Lightning 

Thunderstorms formed over portions of western Oklahoma during the evening of the 8th and moved eastward. At 2330 CST flash 

flooding developed in Hydro in Caddo County. Between 3 and 5 inches of rain fell in this area causing water, estimated to be 10 

inches deep, to flow across a portion of Highway 58. During the early morning of the 9th, a shop was damaged; a carport was 

destroyed, and a small barn was blown over in Velma in Stephens County, while in Shawnee in Pottawatomie County, lightning 

struck a house on Castle Creek Road, exploding a hole in the living room ceiling, destroying a part of the chimney, and damaging the 

plumbing and electrical systems. 

OREGON, Central and East 

ORZ046 Blue Mountains 

01 

02 

0500PST 

1430PST 

ORZ047 John Day Basin 




Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

Heavy Snow 

Heavy snow fell during the last 24 hours in the Blue Mountains of Eastern Oregon. Many elevations over 4000 ft. received over one 

foot of accumulation. Tollgate, at an elevation of 5200 ft, had 24 inches of snow. Some other snow totals included 11 inches at 

Meacham (3800 ft.) and 5 inches at Austin (4200 ft.). 

02 0900PST 

0 0 


A COOP observer in John Day estimated a wind gust of 58 mph associated with a passage of a cold front during the morning hours. 

07 0200PST 

1600PST 

0 0 

Heavy Snow 

Heavy snow fell in the Blue Mountains of eastern Oregon and Washington. Meacham received 7 inches of snow in 9 hours. 

Tollgate, at an elevation of 5200 ft, received 6 inches between 2 am and 11 am. 

10 2300PST 

0 

11 1100PST 

7 inches of snow fell in 12 hours at an elevation of 5200 ft. 

ORZ046-048>049 Blue Mountains - Ochoco-John Day Highlands - Grand Ronde Valley 

14 

15 

0600PST 

1100PST 

0 

0 

0 

Heavy Snow 

Heavy Snow 

Widespread heavy snow fell in the Blue Mountains, Ochoco Mountains, and the Grande Ronde valley. Kamela and Tollgate, both in 

the Blue Mountains, received 12 inches. Austin, located in Grant Co. at an elevation of 4500 feet, received 8 inches overnight. This 

contributed to a power outage early on the 15th. La Grande, located at 2700 feet, received 5 inches. The storm caused many 

accidents in Ladd Canyon, closing Interstate-84 throughout much of the morning hours on the 15th. 

62 58 

December 1999

OREGON, Central and East 

ORZ045 Foothills Of The Blue Mountains 

Umatilla County 

17 1805PST 

0 0 10K 

High Wind 

High winds associated with a line of showers caused substantial damage to a residence just southeast of Stanfield. Shingles were 

removed from the roof and a shed was blown over onto a couple of ATVs. In addition, several dead trees were uprooted and the 

house's television antenna was bent. A storm survey conducted the next day determined that the damage was confined to a path 20 

yards wide and 1/4 mile long. An interview with the owner revealed that a brief loud roaring sound accompanied the storm. This 

damage was likely caused by a brief vortex or spinup along the leading edge of a gust front. 

(Pdt)Pendleton Arpt 17 1831PST 

0 0 


A wind gust of 62 mph was measured by the ASOS at the Pendleton NWS office during a thunderstorm. 

ORZ042 North Central Oregon 

25 0700PST 

1600PST 

0 2 20K 0 Fog 

Freezing fog in north central Oregon and elsewhere in the Columbia Basin led to several accidents in Jefferson Co, Oregon. Poor 

visibilities and slick roads contributed to a dozen or more accidents on Highway-97 south of Madras. Another accident just west of 

Sisters, Or. caused two injuries. 

OREGON, Northwest 

ORZ011 Northern Oregon Cascades 

01 2000PST 

0 0 

Heavy Snow 

02 2000PST 

A very moist pacific frontal system brought heavy snows to the Cascades. Mt. Hood Medows received 22 inches, Timberline 19, Mt 

Bachelor 18 and Bennett Pass 17 inches. 

ORZ001>002 Northern Oregon Coast - Central Oregon Coast 

Lane County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


01 2200PST 

0 0 


02 0400PST 

Strong winds associated with winter cold front buffetted the north and central oregon coast. Sea Lion Caves reported 52 gusts to 62 

mph, Newport 46 gusts to 62 mph, and Netarts 35-45 gusts to 61 mph. 

Creswell 02 1409PST 

1415PST 

2.3 25 0 1 10.5K 

Tornado (F0) 

Tornado was only in Creswell. 

Eyewitnesses reported shingles and other debris lifted 200 feet into the air. Four roofs were damaged, one tree was uprooted, and a 

mill slash burner was tipped over. There was one unconfirmed injury. 


06 0200PST 

0 0 

Heavy Snow 

07 1200PST 

A strong pacific frontal system brought heavy snows to the Cascades. Timberline got 22 inches, Mt Hood Meadows 18 inches, 

Bennett Pass and Santiam Pass 16 inches. 


08 2000PST 

0 0 


09 0100PST 

Strong winds along the north and central Oregon coast were the result of another strong Pacific frontal system moving through the 

area. Sea Lion Caves reported gusts to 59 mph and Bouy 050 (near Newport) reported gusts to 60 mph. 


12 0300PST 

1300PST 

0 0 


A strong pacific cold front brought strong winds to the north and central oregon coast. Sea Lion Caves reported gusts to 47 mph and 

Netarts gusts to 61 mph. 


12 2100PST 

0 0 

Heavy Snow 

14 0300PST 

A surge of cold air following a strong Pacific frontal system brought heavy snow to the Cascade Mtns, Cascade foothils and Coastal 

Mtns. Timberline reported 33 inches, Mt Hood Meadows 28 inches,and Bennett Pass 23 inches. In the foothills Marion Forks 

reported 17 inches and in the Coastal Range Buxton had 4 inches, Wilson 8 inches and Sunset 2 inches. 


15 0300PST 

1700PST 

0 0 


A strong pacific storm system brought high winds to the north and central Oregon coast. Cannon beach reported gusts to 59 mph, 

63 59 

December 1999

OREGON, Northwest 

Sea Lion Caves 44 mph and Netarts 50 mph. 

ORZ001 Northern Oregon Coast 

17 1000PST 

0 0 


18 0100PST 

Strong winds associated with a strong Pacific frontal system crossing the area brought strong winds to the north and central Oregon 

coast. Seaside reported gusts to 62 mph and Netarts gusts to 61 mph. 

ORZ009 Western Columbia River Gorge 

OREGON, Southeast 

ORZ061>062 Harney - Baker 

ORZ062 Baker 

ORZ062 Baker 

26 0200PST 

2300PST 

0 0 


Localized strong easterly winds through the Columbia River Gorge caused minor damage (toppling at tree and two fences in 

Gresham. Corbett reported gusts to 70 mph and Gresham 47 mph. 

01 0005PST 

0 0 

Heavy Snow 

02 1945PST 

A cold North Pacific storm system tracked inland through Southeast Oregon and Southwest Idaho, spreading heavy snow across the 

region. Sherriff's department officials, along with NWS spotters, in Baker County reported 12 inches of snow in Sumpter and 7.5 

inches in Halfway. A power outage resulted from the heavy snow in Sumpter when a load of heavy snow slipped off power lines 

causing them to bounce and strike each other, creating a short in the line. Power was restored within one hour. 

09 0200PST 

0700PST 

0 0 

Heavy Snow 

A cold front moved through Southeast Oregon during the early morning hours of Decemeber 9th, dropping up to 10 inches of snow in 

Baker County. Snowfall reports from Baker County sheriff's deputies indicated 4 to 5 inches in Keating, 6 to 7 inches at Sumpter and 

Halfway, and 8 to 10 inches 5 miles north of the city of Halfway. 

12 1100PST 

0 0 

Heavy Snow 

13 0500PST 

A moist Pacific storm system moved through Southeast Oregon on the 12th of December leaving behind up to 8 inches of new snow. 

NWS spotters reported 6 inches in Bourne and 4 inches at Gold Center with higher elevation reports of 8 inches of new snow. 

OREGON, Southwest 

ORZ021-021-021- South Central Oregon Coast 

021-021 

ORZ027-027-027- 

030 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


01 1900PST 

0 0 


02 0400PST 

Cape Blanco wind 48 KT gusting to 58 KT. 

A strong Pacific front brough high winds to the southern Oregon coast. A High Wind Warning was issued for zone ORZ021 at 1347 

PST on 12/01/99 and extended to zone ORZ022 at 0432 PST on 12/02/99. The warning was cancelled at 0905 PST on 12/02/99. 

Three reporting stations verified the warning. The peak sustained winds and gusts for each station are listed above, but verifying 

winds were reported from 1600 PST on 12/01/99 until 0400 PST on 12/02/99. 

South Central Oregon Cascades - Northern & Eastern Klamath County & Western Lake County 

03 0850PST 

0 0 

Heavy Snow 

1100PST 

Crater Lake 3-day snowfall total was 22 inches. 

A Winter Storm Warning was issued for the South Central Oregon Cascades (ORZ027) at 1446 PST on 12/01 and extended to the 

South Oregon Cascades and Siskiyou Mountains (ORZ028) at 1030 PST on 12/02. The warning was cancelled at 1438 PDT on 

12/02. 

The warning was difficult to verify due to the fact that several reporting stations only report once a day, and the Heavy Snow criteria 

is 12" in 12 hours or 18" in 24 hours. Several stations got a lot of snow out of this system, but the reporting interval is not adequate 

to allow verification. 

In any case, this was a significant storm for snow. 

64 60 

December 1999

OREGON, Southwest 

ORZ021-021>022 South Central Oregon Coast - Curry County Coast 

PACIFIC 

08 1500PST 

0 0 


2000PST 

Cape Blanco winds S 48 KT gusting to 61 KT. 

A High Wind Warning was issued for the southern Oregon coast (ORZ021,ORZ022) at 1649 PST on 12/08 and cancelled at 0215 

PST on 12/09. The strong winds developed before the warning was issued, but only at Cape Blanco. Cape Blanco winds exceeded 

the warning criteria from 1400 to 2200 PST on 12/08. 


PENNSYLVANIA, Central 

PAZ004 Warren 

PAZ004 Warren 

24 0500EST 

0 0 

Heavy Snow 

A narrow band of lake effect snow dropped 6 inches of snow across the northwest corner of Warren County. Most other areas of the 

county had from 1 to 4 inches. 

26 2300EST 

0 0 

Lake effect snow accumulated about 8 inches across northwestern parts of Warren County. 

Heavy Snow 

PENNSYLVANIA, East 

PAZ054>055- Carbon - Monroe - Berks - Lehigh - Northampton - Chester - Montgomery - Bucks - Delaware - 

060>062-067>071 Philadelphia 

Bucks County 


14 1600EST 

Chester County 


14 1600EST 



14 1600EST 

Montgomery 

County 


14 1600EST 

Philadelphia 

County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


10 1800EST 

0 0 

Wind 

11 0700EST 

A strong cold front moved through Eastern Pennsylvania during the early evening of the 10th. The front was accompanied by strong 

gusty northwest winds. As a low pressure system intensified as it moved across northern New England into the Canadian Maritimes 

and a large high pressure system built east from the Northern Plains and the Great Lakes, gusty northwest winds continued 

throughout most of the night. The strongest gusts were in the eastern part of the state. Peak wind gusts included 43 mph at the 

Philadelphia International Airport and the Wilkes-Barre Scranton Airport (Luzerne County), 38 mph in Doylestown (Bucks County), 

36 mph in Pottstown (Montgomery County) and Mount Pocono (Monroe County) and 33 mph at the Lehigh Valley International 

Airport. 

0 

0 

0 

0 

0 

0 

0 

0 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 


0 0 

Heavy Rain 

14 1600EST 




hours of steady rain from noon on the 13th into the mid afternoon of the 14th. The heaviest rain (about two-thirds of the storm total) 

fell during the morning and early afternoon of the 14th. Storm totals averaged around an inch and a half. There was some urban and 

poor drainage flooding, but no other problems were reported. Storm totals included 1.78 inches at the Franklin Institute within 

Philadelphia, 1.77 inches in Fricks (Bucks County), 1.63 inches in West Chester (Chester County), 1.56 inches in Neshaminy Falls 

(Bucks County), 1.53 inches at the Northeast Philadelphia Airport, 1.35 inches in Pottstown (Montgomery County), 1.29 inches in 

Valley Forge (Chester County), 1.28 inches in Palm (Montgomery County) 1.24 inches at the Philadelphia International Airport and 

1.22 inches in Springtown (Bucks County). 

65 61 

December 1999

PENNSYLVANIA, East 

PAZ054>055 Carbon - Monroe 

PAZ054>055- 

060>062 

PENNSYLVANIA, Northeast 

14 0900EST 

0 0 

Wintry Mix 

1800EST 




became stronger as it moved across nearby Canada. The northeast flow around this high brought colder air into the Poconos. As 

precipitation moved back into the region during the morning of the 14th, it fell as a mixture of sleet, freezing rain and plain rain. 

Untreated roads and walkways became very slippery. There was also a slight accretion of ice on trees and power lines. During the 

evening, enough warm air moved in to raise temperatures above freezing. 

Carbon - Monroe - Berks - Lehigh - Northampton 

20 0300EST 

0 0 

Freezing Rain 

1500EST 

A high pressure system that moved across the northern Middle Atlantic States and New England on the weekend of the 18th and 19th 

pumped in a cold, dry air mass into the region. On the 19th, a weak low pressure system developed along the South Carolina coast 

and pumped moisture northward into the region. While the air aloft was warm enough for precipitation to fall as rain, temperatures 

near the ground were still below freezing. As precipitation spread north across Berks County, the Lehigh Valley and the Poconos 

between 3 a.m. and 6 a.m. EST on Monday the 20th, it began as light freezing rain. The cold air tenaciously held on and took the 

better part of the morning for readings to get entirely above the freezing mark in Berks County and the Lehigh Valley and into the 

middle of the afternoon for the Poconos. Nearly a quarter of an inch of ice accrued in some of the valleys of the Poconos before the 

change to plain rain occurred. Driving and walking on untreated surfaces were treacherous. Crashes with minor injuries closed both 

U.S. Route 22 (between Easton and Bethlehem Townhsips) and Pennsylvania State Route 33 (between Wind Gap and Stockertown) 

in Northampton County during the predawn hours. The Bangor and Easton school districts (in Northampton County) canceled 

classes. 


PENNSYLVANIA, Northwest 

PAZ001>003 Northern Erie - Southern Erie - Crawford 

23 1200EST 

0 0 450K 

Heavy Snow 

24 1200EST 

Cold northwest winds blowing across Lake Erie resulted in the development of lake effect snow bands around noon on the 23rd. 

Heavy snow first fell along the Lake Erie lakeshore, but spread over southern Erie County and all of Crawford County by early on the 

24th. Snowfall rates of 2 to 3 inches per hour were observed and many roads had to be temporarily closed with snarled traffic on 

roads kept open. Scattered power outages were also reported. Snow accumulations generally ranged from one to two feet with 18.7 

inches of snow measured officially at Erie International Airport. Cranesville reported 30 inches of accumulation with 26 inches at 

North East. 

PAZ002>003 Southern Erie - Crawford 

PENNSYLVANIA, West 

PAZ032 Fayette 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


27 1200EST 

0 0 

Heavy Snow 

28 0000EST 

Lake effect snow bands developed around midday and tapered to flurries late in the evening. Snowfall totals were generally 6 to 10 

inches with a maximum of 14 inches measured in northern Crawford County. 

26 1500EST 

0 0 


27 2300EST 

Strong, persistent northwest winds behind a cold front produced orographically enhanced snows across the higher elevations of 

Fayette County. Snowfall totals of 4 to 6 inches were common over the mountain ridges in extreme eastern sections of the county, 

with lesser amounts of 2 to 3 inches reported at lower elevations across the remainder of the county. 

PAZ030-032 Westmoreland - Fayette 

28 1600EST 

0 0 


29 1000EST 

Another round of persistent northwest flow behind a strong cold front produced orographically enhanced snows across the higher 

elevations of Fayette and Westmoreland Counties. Snowfall totals of 4 to 6 inches were reported at several locations over the 

mountain ridges in extreme eastern sections of the counties. Across the lower elevations to the west, snowfall amounts of 1 to 3 

inches were common. 

66 62 

December 1999

PUERTO RICO 

San Juan 

San Juan 02 1000AST 

1300AST 

0 0 5K 

Flash Flood 

Civil Defense indicated street flooding and some houses flooded in the following sectors in the San Juan Metropolitan area; Ocean 

Park, Barrio Obrero, San Jose, Hato Rey and Buenos Aires. 

San Juan 

Central Portion 02 1400AST 

1530AST 

0 0 

Flash Flood 

Civil Defense indicated several streams in Bayamon out of their banks flooding nearby sectors. A weather service employee indicated 

street flooding in parts of Carolina and San Juan. 

San Juan 

Orocovis 02 1700AST 

1800AST 

0 0 

A big landslide occurred on road 155 in Orocovis. Some cars were trapped. 

San Juan 

Heavy Rain 

Vega Baja 02 1800AST 

0 0 

Flood 

03 1200AST 

Heavy rains during most of the afternoon across the central sections of Puerto Rico caused the Cibuco River to overflow its banks in 

the low lands of Vega Baja. 

Humacao 

Fajardo 02 1800AST 

2000AST 

0 0 

Flash Flood 

A spotter from Fajardo reported three inches of rain, Fajardo river out of its banks and roads 3 and 976 closed due to flooding. 

San Juan 


0 0 

Flood 

03 0600AST 

Weather service personnel indicated that La Plata river near Dorado and the Grande de Loiza river in Loiza and Carolina were 

causing significant flooding. 

Humacao 

Fajardo 05 1400AST 

1800AST 

San Juan 

0 

0 

Flash Flood 


1800AST 

0 0 

Flash Flood 

Civil Defense indicated flooding along Cibuco river in Vega Alta and numerous landslides in Naranjito. Fajardo River overflowed its 

banks flooding roads 3 in Fajardo and 30 in Naguabo. 

RHODE ISLAND 

RIZ001>002 Northwest Providence - Southeast Providence 

RIZ006 Washington 

SOUTH CAROLINA, Central 

11 1000EST 

1600EST 

0 0 

Strong Wind 

An intensifying low pressure system in the Gulf of Maine brought strong northwest winds to Rhode Island. Wind gusts of 40 to 50 

mph were common in Providence County from late morning into early afternoon, and there were a few reports of downed tree limbs 

and power lines. 

30 0600EST 

0800EST 

0 0 

Strong Wind 

Low pressure moving across Ontario Canada brought a period of strong southwest winds to coastal Rhode Island. Block Island 

reported sustained winds of 30 to 35 mph for about a two hour period that morning. 


SOUTH CAROLINA, North Coastal 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



67 63 

December 1999

SOUTH CAROLINA, Northwest 

SCZ004>014-019 Greater Oconee - Greater Pickens - Greater Greenville - Spartanburg - Cherokee - York - 

Anderson - Abbeville - Laurens - Union - Chester - Greenwood 

SOUTH CAROLINA, South Coastal 

13 1900EST 

0 

14 0800EST 

Dense fog blanketed the area, causing some traffic accidents. 


SOUTH DAKOTA, Central and North 


SOUTH DAKOTA, Southeast 

SDZ038>040-050- 

052>071 

0 

Beadle - Kingsbury - Brookings - Gregory - Jerauld - Sanborn - Miner - Lake - Moody - Brule - 

Aurora - Davison - Hanson - Mccook - Minnehaha - Charles Mix - Douglas - Hutchinson - Turner - 

Lincoln - Bon Homme - Yankton - Clay - Union 

01 0000CST 

0 0 

Drought 

31 2359CST 



drying. Grass fires continued to be a problem, although there were not as many as in November. Agricultural concern was mostly for 

the future start of the growing season, but there were some effects of the drought noted to winter wheat. 

SOUTH DAKOTA, West 

SDZ001-013-031 Harding - Meade Co. Plains - Pennington Plains 

SDZ001>002- 

012>014-025>026- 

030>032-043-046- 

049 

13 

TENNESSEE, Central 

TENNESSEE, East 

TENNESSEE, West 


1958MST 

2104MST 

0 

0 

Fog 


Harding - Perkins - Butte - Meade Co. Plains - Ziebach - Northern Foot Hills - Central Foot Hills - 

Custer Plains - Pennington Plains - Haakon - Jackson - Mellette - Tripp 

18 0344MST 

1600MST 

0 0 


A strong cold front moved through the region. There were 11 hours where sustained winds at Buffalo, SD were above 50 mph. The 

rest of the region had several hours of sustained winds over 40 mph with gusts to near 60 mph. 



Adair 09 2145CST 

2150CST 


0 

0 

0.01K 

Hail (0.75) 

Adair 09 2155CST 

2215CST 

0 0 100K 


One building was destroyed. Up to fifteen homes were damaged. An industrial facility was also damaged. Some trees and power 

lines were knocked down. 

TEXAS, Central 

Taylor County 

Potosi 08 2355CST 

Callahan County 

Clyde 09 0011CST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


68 64 

0 

0 

0 

0 

Hail (0.88) 

Hail (0.88) 

December 1999

TEXAS, Central 

Callahan County 

Eula 09 0011CST 

0 0 

Hail (0.88) 

Several severe thunderstorms raced across the Big Country...producing reports of hail up to the size of nickels. 

TEXAS, Central Southeast 

Matagorda 

County 

Sargent 20 0500CST 

Brazoria County 

Brazoria 20 0520CST 

Hail covering the ground. 

TEXAS, Extreme West 

TEXAS, Mid - South 

TEXAS, North 

Hamilton County 



Hamilton 02 0300CST 

0 

A patio cover was destroyed by high thunderstorm winds. 

Jack County 

3 N Perrin 02 2045CST 

Jack County 

Cundiff 02 2050CST 

Cooke County 

Myra 02 2100CST 

Occurred between Myra and Hood. 

Wise County 

1 NW Lake 

Bridgeport 

Wise County 

02 

2125CST 

Hail occurred at the intersection of County Roads 2165 and 2125. 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

25K 

25K 

2K 

Hail (1.00) 

Hail (1.25) 


Hail (1.75) 


Hail (0.75) 

Hail (0.75) 

Chico 02 2140CST 5.5 100 2 3 600K 

Tornado (F1) 

Two persons were killed in a mobile home which was destroyed by a tornado. Three other people were injured. Three mobile homes 

were destroyed, with two of them heavily damaged. Many outbuildings were damaged or destroyed. M?MH, F?MH 

Montague County 

Bowie 02 2155CST 

Occurred between Bowie and Smyrna. 

Wise County 

1 SW Lake 

Bridgeport 

Wise County 

02 

2155CST 

Hail occurred at Runaway Bay. 

8 E Decatur 02 2212CST 

Wise County 

Decatur 02 2222CST 

Wise County 


Wise County 


Wise County 



Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


69 65 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Hail (0.75) 

Hail (1.00) 

Hail (1.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (1.00) 

December 1999

TEXAS, North 

Grayson County 

Gordonville 02 2250CST 

Wise County 

8 E Decatur 02 2305CST 

Denton County 

Krum 02 2317CST 

Denton County 

Sanger 02 2328CST 

Denton County 

2 E Sanger 02 2330CST 

Occurred on the west side of Ray Roberts Lake. 


Sherman 02 2358CST 


Gordonville 03 0045CST 


Pottsboro 03 0045CST 





A large tree was blown onto two houses. 

Dallas County 


0 

Thunderstorm winds damaged a building and power lines. 


5 W Sherman 04 0815CST 

A barn was destroyed by high thunderstorm winds. 

Henderson County 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

15K 

2K 

10K 

Hail (0.75) 

Hail (0.75) 

Hail (2.75) 

Hail (1.00) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 

Hail (0.75) 




6 E Aley 04 1020CST 

0 0 25K 


A roof was blown off a porch and a mobile home was damaged by strong thunderstorm winds. Several barns and outbuildings were 

also damaged. The event occurred in Gun Barrell City. 

Henderson County 

1 NE Mabank 04 1030CST 

0 0 30K 


Thunderstorm winds blew the roof off a house, damaged outbuildings, barns, trees and power lines. 

Van Zandt County 

Whiton 04 1035CST 

0 0 50K 


Thunderstorm winds destroyed a house, damaged four others and blew the chimney off another house. The damaged occurred 

between Whitton and Phalba. 

Kaufman County 

Mabank 09 0700CST 

0 0 60K 


Two homes were severely damaged and minor damage occurred at thirteen other homes. Power lines were blown down, the roof of a 

car wash was damaged, and the back porch roof was blown off a house. 

Dallas County 


0 0 

Numerous streets were closed due to high water from thunderstorm rain. 

Dallas County 


Numerous streets remained closed due to high water. 

Collin County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


Plano 12 0800CST 

0 0 30K 

Lightning started a fire that burned down the Peaceable Kingdom Retreat For Children. 

70 66 

0 

0 

Flash Flood 

Flash Flood 

Lightning 

December 1999

TEXAS, North Panhandle 

TXZ001-003>017- Dallam - Hansford - Ochiltree - Lipscomb - Hartley - Moore - Hutchinson - Roberts - Hemphill - 

019 

Oldham - Potter - Carson - Gray - Wheeler - Deaf Smith - Randall - Donley 

04 0500CST 

0 0 

Heavy Snow 

1800CST 

Strong upper low over southeastern New Mexico moved northeast during the day across the Texas South Plains region and then into 

southwestern Oklahoma by the early evening hours. The heaviest snowfall occurred across the extreme western and southwestern 

Texas panhandle where as much as seven to ten inches fell along Interstate 40 from Vega to the state line and then southward into the 

city of Hereford. Elsewhere, generally four to six inches of snow fell across the rest of the Texas panhandle. Most roads and 

highways were closed due to the heavy snow. 

TXZ016>017 Deaf Smith - Randall 

TEXAS, Northeast 

Cass County 

08 2359CST 

0 0 

Heavy Snow 

09 1159CST 

Six to eight inches of snow fell at Hereford with snow drifts of three to four feet deep. 

A closed upper low over central New Mexico moved east to south of the Texas panhandle during the nighttime and early morning 

hours. Heavy snowfall occurred across the extreme southwest and south-central Texas panhandle during this period. 

7 NW Marietta to 04 1345CST 0.9 25 0 0 

Tornado (F0) 

7.1 NW Marietta 

1347CST 


Bowie County 

.3 SW Bassett to 04 1406CST 2.1 25 0 0 

Tornado (F0) 

1.8 SW Simms 

1410CST 


Harrison County 

Marshall 04 1520CST 

1522CST 

TEXAS, South 

TEXAS, South Central 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


1.6 140 0 

0 

Tornado (F1) 

In southwest Marshall from just southeast of West Pinecrest Drive (hwy 43) and just east of West End Blvd to South Washington 

Ave to just west of East End Blvd (Hwy 59). Eyewitnesses indicated tornado was heavily rain wrapped, fast moving and very 

difficult to see. Tree on home. Few removed shingles. About ten large pines snapped or uprooted. Flag pole bent. Power lines 

down. 



TEXAS, South Panhandle 

TXZ021>024-027- Parmer - Castro - Swisher - Briscoe - Bailey - Hale 

029 

04 0500CST 

0 0 60K 

Heavy Snow 

1400CST 

An upper level low pressure system translated from the Pacific Northwest on the 2nd into the four corners region on the 3rd then into 

the Southern Plains on the 4th. At the same time, cold air associated with high pressure centered over the Northern Rocky Mountains 

deepened over West Texas. Snow began to fall over West Texas during the early morning hours of the 4th, falling most heavily over 

the Southwestern Panhandle and the Northwestern South Plains where four to six inches of snow was reported. This included 

Parmer, Castro, Briscoe, Bailey, and Hale Counties. Elsewhere, one to three inch accumulations occurred in parts of Cochran, 

Hockley, Lamb, and Swisher Counties. The snow diminished to flurries during the late afternoon as the storm moved northeast into 

Southwest Oklahoma. A 50-100 mile wide band of heavy snow extended from East-Central New Mexico through the Texas 

Panhandle and into Northern Missouri in the wake of the storm. 

Some specific effects of this storm included: All roads closed in Castro County due to zero visibility and 35 mph winds with blowing 

and drifting snow; power outages that lasted up to two days in parts of Castro County; five to six foot drifts in Parmer County; power 

outages that lasted up to four days in parts of Bailey County; and over 150 power poles broken in Bailey County due to the 

combination of snow and ice on the wires with the whipping action of the wind. 

71 67 

40K 

December 1999

TEXAS, South Panhandle 

TXZ021>023- Parmer - Castro - Swisher - Lamb - Hale - Hockley - Lubbock 

028>029-034>035 

TEXAS, Southeast 

Tyler County 

08 2300CST 

0 0 

Heavy Snow 

09 1000CST 

Another upper level storm developed into the Pacific Northwest on the 7th. This storm translated into the Southern Rocky Mountains 

on the 8th and into the Southern Plains during the early morning hours of the 9th. Cold air was already in place as the storm 

approached West Texas as a cold front had moved through the area on the 8th. Snow developed over the counties bordering New 

Mexico as the system approached from the west during the late evening of the 8th; the snow increased in coverage and intensity on 

the 9th. The atmosphere was moist and unstable with this system, resulting in a considerable amount of thunderstorm activity, in 

which snow fell at a rate of up to two inches per hour. Accumulations of four to six inches occurred in Parmer, Castro, Swisher, 

Lamb, Hale, Hockley, and Lubbock Counties with one to three inches widespread across the remainder of the Southern Panhandle 

and South Plains. Roads were closed in portions of Castro and Parmer Counties, with drifts reportedly 4 feet high. The snowpack 

persisted in Castro County for several days after the storm moved out of the area. 

Colmesnelle 04 1540CST 

Trees were blown down in Colmesneil. 

Jasper County 

Jasper 04 1810CST 

Trees were blown down in Jasper and Buna. 

Newton County 

Burkeville 04 1900CST 

0 0 2K 

Trees were blown down along Highway 63 near Burkeville and on FM 1416 near Bon Weir. 

TEXAS, West 

TXZ057-074 Van Horn/Guadalupe Mountains Area - Davis Mountains 

02 

08 

1114MST 

1500MST 

TXZ057 Van Horn/Guadalupe Mountains Area 

14 

1600MST 

1900MST 

TXZ057-074 Van Horn/Guadalupe Mountains Area - Davis Mountains 

0400MST 

1200MST 


18 1300MST 

1600MST 



24 1130MST 

1300MST 

Sustained wind 


TEXAS, Western North 

Wilbarger County 

13 W Vernon 02 1618CST 

Clay County 

5 W Bluegrove 02 1830CST 

Wilbarger County 

1 E Harrold 08 1928CST 

Wichita County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

2K 

5K 









24 2100MST 

0 0 

Heavy Snow 

25 0700MST 

An upper level low pressure system moving to the northeast dumped 5 inches of snow at Guadalupe Mountains National Park. 

Electra 09 0053CST 

0 0 

Hail was reported at the intersection of Highway 287 and Highway 25. 

72 68 

0 

0 

0 

0 

0 

0 

Hail (0.88) 

Hail (0.75) 

Hail (0.75) 

Hail (0.88) 

December 1999

UTAH, East 


UTAH, West and Central 

UTZ001>008 Cache Valley/Utah Portion - Northern Wasatch Front/Brigham City/Ogden Bountiful - Salt Lake 

And Toole Valleys - Southern Wasatch Front/Lehi/Provo/Nephi - Great Salt Lake Desert And 

Mountains/Wendover/Snowville - Wasatch Mountain Valleys/Huntsville/Park City/Heber - 

Wasatch Mountains I80 North - Wasatch Mountains South Of I80 

02 1800MST 

0 2 200K 0 Heavy Snow 

03 0900MST 

A major winter storm developed over Utah late on the 2nd and lasted into the morning hours of the 3rd. The heaviest snow fell along 

the Southern Wasatch Front. Near blizzard conditions were reported overnight in Northern Utah County, with drifts up to 3 feet in 

Pleasant Grove. On the morning of the third, 32 vehicles were involved in a chain reaction accident on I-15 near Point of the 

Mountain. Only 2 people were injured, but many cars sustained damage. Some higher snow amounts included 21 inches at Snowbird, 

19 inches at Alta, 14 inches at Brian Head, 12 inches in Sandy, 11 inches in Fort Union, and 10 inches in Cottonwood, Holladay and 

Taylorsville. 

UTZ001>008-017 Cache Valley/Utah Portion - Northern Wasatch Front/Brigham City/Ogden Bountiful - Salt Lake 



Wasatch Mountains I80 North - Wasatch Mountains South Of I80 - Central And Southwest 

UTZ001>008- 

016>017 

UTZ001>004- 

006>008 

UTZ001>004- 

006>008-017 

Mountains 

07 1000MST 

2200MST 


Another storm brought good amounts of snow to mainly Northern Utah. Alta, Brian Head and Solitude received 13 inches, Snowbird 

had 12 inches and Brighton 11 inches. Most valley locations picked up 2-4 inches with 3-6 inches on the benches. 

Cache Valley/Utah Portion - Northern Wasatch Front/Brigham City/Ogden Bountiful - Salt Lake 



Wasatch Mountains I80 North - Wasatch Mountains South Of I80 - Southwest Utah/Cedar 

City/Milford - Central And Southwest Mountains 

10 0300MST 

1200MST 


Another quick shot of snow, with the higher amounts across the north. Alta received 14 inches and Snowbird 12 inches. Most 

northern valleys got 2-5 inches of snow. Cedar City in southwest Utah picked up 4 inches, and Brian Head got 13 inches. 


And Toole Valleys - Southern Wasatch Front/Lehi/Provo/Nephi - Wasatch Mountain 

Valleys/Huntsville/Park City/Heber - Wasatch Mountains I80 North - Wasatch Mountains South 

Of I80 

VERMONT, North and Central 

VTZ006 Lamoille 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


13 1800MST 


14 1200MST 

A vigorous cold front moved through Northern Utah, bringing more snow to the mountains and Wasatch Front. Most valleys picked 

up another 2-5 inches with 3-6 on the benches. The mountains received 12-18 inches generally. As usual, Alta came in with the most 

with 19 inches of fresh powder. Snowbird and Solitude got 15 inches, with 14 inches at Monte Cristo and Brighton. 


And Toole Valleys - Southern Wasatch Front/Lehi/Provo/Nephi - Wasatch Mountain 

Valleys/Huntsville/Park City/Heber - Wasatch Mountains I80 North - Wasatch Mountains South 

Of I80 - Central And Southwest Mountains 

20 1200MST 


21 1200MST 

A statewide snowstorm brought the heaviest amounts to the north once again. Alta and Snowbird received another 17 inches, with 16 

inches at Solitude. East Orem picked up 5 inches, with 4 inches in Logan and Heber City. Down south, Beaver Mountain had 10 

inches and Brian Head 8 inches. 

11 0800EST 

1500EST 

0 0 15K 



73 69 

December 1999


on Saturday (December 11, 1999). Moisture wrapped around this system with snow across the area. Heaviest snow fell in a 

north-south band along the spine of the Green Mountains. Rain Friday night mixed with and changed to snow early Saturday. The 

snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. Across Lamoille county, generally 6 to 

12 inches of snow fell, with 16 inches reported in Stowe. 

VTZ002 Franklin 

VTZ008 Washington 

VTZ007 Caledonia 

VTZ004 Essex 

VTZ010 Orange 

VTZ003 Orleans 

VTZ009 Addison 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


11 0900EST 

0 0 10K 


1500EST 




snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. Generally between 2 and 4 inches of 

snow fell, except in the mountains in the eastern portion of the county where 10 to 18 inches fell with 17 inches around the Jay Peak 

area. 

11 0900EST 

0 0 30K 


1500EST 




snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. Across Washington county, generally 6 

to 12 inches fell. The greatest amounts fell in the western half of the county, with 14 inches in Worcester and Waitsfield. Numerous 

accidents were reported, with cars off the road. 

11 0900EST 

0 0 20K 

Light Snow 

1500EST 




snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. Across Caledonia county, generally 3 to 

6 inches fell with 5 1/2 inches in West Danville. Numerous accidents were reported. 

11 0900EST 

0 0 5K 

Light Snow 

1500EST 


on Saturday (December 11, 1999). Moisture wrapped around this system with snow across the area. Rain Friday night mixed with 

and changed to snow early Saturday. The snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. 

Across Essex county, accumulations were generally around 3 inches. 

11 0900EST 

0 0 10K 

Light Snow 

1500EST 




snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. Across Orange county, generally 1 to 3 

inches fell except in the far western mountains where 4 to 7 inches fell. 

11 0900EST 

0 0 10K 

Light Snow 

1500EST 




snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. Across Orleans county, around 6 inches 

fell. 

11 0900EST 

0 0 5K 

Light Snow 

1500EST 




snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. Across Addison county, generally a 

74 70 

December 1999


trace to 2 inches fell...except in the far eastern mountains where 6 to 12 inches fell. 

VTZ005 Chittenden 

11 0900EST 

0 0 5K 

Light Snow 

1500EST 




snow was wet with gusty winds, before tapering off by late Saturday afternoon and evening. Across Chittenden county, generally a 

trace to 3 inches fell...except in the far eastern mountains where 6 to 12 inches fell. 

VTZ001>012 Grand Isle - Franklin - Orleans - Essex - Chittenden - Lamoille - Caledonia - Washington - 

Addison - Orange - Rutland - Windsor 

VTZ010 Orange 

VTZ012 Windsor 

VTZ008 Washington 

VTZ005 Chittenden 

VTZ007 Caledonia 

VTZ009 Addison 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


14 2000EST 

0 0 12K 

Light Snow 

15 0500EST 



inches of snow fell across the area. A few reports included: 3 inches in Orwell (Addison county), 3 inches in Worcester (Washington 

county), 3 inches in St Albans (Franklin county) with around 2 inches reported in the Burlington area (Chittenden county). 

Throughout the state roads were reported slippery. 

20 1200EST 

0 0 30K 

Light Freezing Rain 

21 0400EST 

High pressure over the Canadian Maritimes resulted in a supply of cold air in the low layers of the atmosphere across Vermont while 

milder moist air moved in at higher levels. This resulted in freezing rain across Vermont, especially in the Green Mountains and the 

eastern half of the state during Monday afternoon (12/20/99) into early Tuesday morning (12/21/99). In Orange county, accidents 

were reported in Brookfield due to icy roads. Schools were closed in Bradford on December 21st due to the icy roads in the early 

morning. 

20 1200EST 

0 0 50K 


21 0400EST 



eastern half of the state during Monday afternoon (12/20/99) and early Tuesday (12/21/99). In Windham county, roads were reported 

very icy. A weather spotter reported up to a 1/4 inch of ice in Springfield. Numerous accidents were reported including 2 separate 

tractor-trailer truck accidents, and a 15 car pile up on the I-89 bridge over the Connecticut River. The icing became more localized 

during the predawn hours of December 21. 

20 1400EST 

0 0 30K 


2300EST 



eastern half of the state during Monday afternoon (12/20/99) and night. In Washington county, numerous accidents were reported in 

Barre due to icy roads. 

20 1400EST 

0 0 5K 


2200EST 



eastern half of the state during Monday afternoon and evening (12/20/99). In the eastern half of Chittenden county, up to a 1/3 of an 

inch of ice was reported in Jericho with icy roads. 

20 1500EST 

0 0 10K 


2359EST 



eastern half of the state during Monday afternoon and night (12/20/99). In Caledonia county, roads were reported as icy in and around 

Groton. 

20 1500EST 

2200EST 

0 0 20K 



75 71 

December 1999



eastern half of the state during the afternoon and evening of Monday (12/20/99). In Addison county, roads were reported as icy with 

a number of accidents. 

VERMONT, South 

VIRGIN ISLANDS 

St. Thomas 

County 


St. Thomas 02 1400AST 

1700AST 

0 0 

Heavy rains during the afternoon produced flooding on several roads. 

VIRGINIA, East 


VIRGINIA, Extreme Southwest 


VIRGINIA, North 

VAZ025-036 Augusta - Nelson 

VIRGINIA, Northwest 

VIRGINIA, Southwest 


24 0900EST 

0 0 

Winter Weather 

1300EST 

An upper level disturbance moved across Central Virginia on Christmas Eve morning. This system produced a period of light now 

between 9:00 AM and 1:00 PM. Augusta County, in addition to Staunton and Waynesboro, received less than an inch of 

accumulation. However, it was just enough now to make untreated roads slippery. Augusta County officials reported up to 40 traffic 

accidents backed up to investigate by midday. A few accidents involved significant injuries. In the city of Waynesboro, officials 

reported a handful of fender benders. Staunton police tallied nearly 60 weather related traffic accidents during the event. Snowfall 

totals included 0.7 inches at Craigsville and 0.5 inches in Staunton. In Nelson County, the town of Montebello reported an 

accumulation of 3.1 inches. 



WASHINGTON, Northeast 

WAZ031-037- Northeast Blue Mountains - Northeast Mountains - Wenatchee Area - East Slopes Northern 

041>044 

Cascades - Okanogan Valley - Waterville Plateau 

WASHINGTON, Northwest 

Clallam County 

Forks 15 0000PST 

2300PST 

Grays Harbor 

County 

Aberdeen 15 0000PST 

2300PST 

Jefferson County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


02 0600PST 

0 0 

Heavy Snow 

31 2100PST 

Snow amounts of 4 to 8 inches occurred periodically in the mountains of eastern Washington along with the adjacent valleys of the 

eastern Cascades mountains, especially on the 9th. Numerous automobile accidents were reported. 

0 

0 

0 

0 

10K 

20K 

Heavy Rain 

Heavy Rain 

Countywide 15 0000PST 

2300PST 

0 0 170K 

Heavy Rain 

Heavy rain along the Washington coast flooded roads and damaged bridges in west Clallam and Jefferson counties and caused a 

76 72 

December 1999

WASHINGTON, Northwest 

mudslide in Aberdeen. Forks reported about 6 inches of rain in 24 hours. In Clallam county several State Routes and Highway 101 

were either closed or reduced to one lane due to flooding. The mudslide in Aberdeen destroyed a work shed and knocked a home off 

of its foundation. 

WAZ011 Southwest Interior 

15 1500PST 

0 0 

Flood 

16 0600PST 

The Wynoochee River flooded for only the second time in the past 30 years. Up to nine inches of rain fell in a 24 hour period over 

the Olympic Peninsula which caused some homes to be flooded with up to four feet of water. During the same flood event, there was 

also major flooding on the Snoqualmie and Tolt rivers. 

WASHINGTON, Southeast 

WAZ030 Northwest Blue Mountains 

01 0500PST 

0 0 

Heavy Snow 

02 1630PST 

Ski Bluewood, located 20 miles southeast of Dayton at an elevation of 4500 ft., received 20 inches of snow in 24 hours. 

WAZ025 East Slopes Southern Cascades 

WAZ027 Yakima Valley 

02 0830PST 

0 0 


A spotter located at Trout Lake reported a wind gust of 76 mph. Trout Lake is in Klickitat County at an elevation of 1970 ft. 

02 1400PST 

0 0 20K 0 High Wind (G40) 

Strong sustained winds of 38 mph with gusts up to 46 mph were measured at the Yakima Airport. These winds downed a power line 

in Yakima. The line came in contact with a metal garage and started a fire, causing considerable damage to several vintage cars and 

some tools within. 

WAZ025 East Slopes Southern Cascades 

13 2100PST 

0 0 

Heavy Snow 

14 1730PST 

Heavy snow fell along the eastern slopes of the Washington Cascades overnight and during the early part of today. Cle Elum, at an 

elevation of 1900 ft, received 12 inches of snow. 9 inches fell at Trout Lake, located in Klickitat Co. Rosyln, at an elevation of 2200 

feet, received 15 inches of snow between 9 pm on the 13 th and 1:30 this afternoon. 

WAZ028 Lower Columbia Basin 

15 

0800PST 

1600PST 

0 

0 

5K 


Strong winds in the Columbia Basin accompanied a Pacific cold front. Wind gusts of 51 mph and 58 mph were estimated at two 

locations on the Hanford Nuclear Reservation. A spotter 5 miles east of Prosser recorded sustained winds of 30 mph with gusts of 46 

mph at 8:30 am. Two semi trucks were overturned during the afternoon near Prosser. 

WAZ028 Lower Columbia Basin 

WASHINGTON, Southwest 

WEST VIRGINIA, East 

WEST VIRGINIA, North 

Marion County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


18 0300PST 

0800PST 

0 0 


Strong winds associated with a cold front occured during the early morning hours across the Columbia basin. Wind gusts as high as 

62 and 61 mph were measured in Prosser and Richland around 5 am. Also, a gust was measured at 102 mph on Rattlesnake Ridge, 

which is at an elevation of 3000 f.t 



Rachel 14 1350EST 

1700EST 

0 0 

Flash Flood 

Heavy rainfall produced minor flooding along Plum Run on Routes 250 and 91 near the Rachel area. Some minor flooding was also 

reported on other area roads across the county, causing three school districts (North Marion, Blackshere, and Mannington) to release 

students early. 

77 73 

December 1999

WEST VIRGINIA, North 

Monongalia 

County 

Blacksville 14 1556EST 

2000EST 

0 0 

Flash Flood 

Heavy rainfall produced minor flooding along Route 7 in Blacksville where Jakes run flows into Dunkard Creek. 

WVZ023-041 Preston - Tucker 

WVZ023-041 Preston - Tucker 

WEST VIRGINIA, Southeast 

WEST VIRGINIA, West 

Calhoun County 

26 1500EST 

0 0 


27 2300EST 

Strong, persistent northwest winds behind a cold front produced orographically enhanced snows to the higher elevations of Preston 

and Tucker Counties. Snowfall totals of 4 to 8 inches were found over the mountain ridges, with lesser amounts of 2 to 4 inches 

reported at lower elevations across the counties. Some of the higher snowfall totals included 8 inches in Thomas (Tucker County), 7 

inches in Canaan Valley (Tucker) and 5 inches in Terra Alta (Preston). 

28 1600EST 

0 0 


29 1000EST 

Another round of persistent northwest flow behind a strong cold front produced orographically enhanced snows across the higher 

elevations of Preston and Tucker Counties. Snowfall totals of 4 to 7 inches were reported at several locations over the mountain 

ridges of the counties. Across the lower elevations, snowfall amounts of 2 to 4 inches were found. 



14 1200EST 

Doddridge County 


14 1200EST 

Gilmer County 


14 1200EST 

Harrison County 


14 1200EST 

Lewis County 


14 1200EST 

Pleasants County 


14 1200EST 

Ritchie County 


14 1200EST 

Roane County 


14 1200EST 

Tyler County 


14 1200EST 

Wirt County 


14 1200EST 

Wood County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 

Heavy Rain 


0 0 

Heavy Rain 

14 1200EST 

Rains in about a 30 hour period averaged 1 to 2 inches over the Little Kanawha River basin, plus the headwaters of the Pocatalico and 

the West Fork Rivers. The rains also affected the Middle Island Creek basin. A few locations had between 2 and 2.5 inches of 

78 74 

December 1999

WEST VIRGINIA, West 

rain. Specific totals include 2.4 inches at Spencer, 2.2 inches at Creston and Elizabeth, 2.1 inches at West Union, 2 inches at 

Grantsville, 1.8 inches at Weston, 1.7 inches at Gassaway, and 1.6 inches at Clarksburg. 

Small streams spilled onto low lying fields on the 14th. A few secondary roads and low water bridges were blocked by the 

highwater. As a precaution, some of the county school districts dismissed their children a few hours early. 

WISCONSIN, Extreme Southwest 

WISCONSIN, Northeast 

WIZ005-010>013- 

018>022-030>031- 

035>040-045- 

048>050 

WIZ005-010>013- 

018>022-030>031- 

035>040-045- 

048>050 

WISCONSIN, Northwest 

WIZ004 Iron 


WISCONSIN, Southeast 

WIZ063-066 Dane - Milwaukee 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


Vilas - Oneida - Forest - Florence - Marinette - Lincoln - Langlade - Menominee - Oconto - Door - 

Marathon - Shawano - Wood - Portage - Waupaca - Outagamie - Brown - Kewaunee - Waushara - 

Winnebago - Calumet - Manitowoc 

12 2100CST 

0 0 

Fog 

13 2200CST 

Dense fog reduced visibilities to near zero over much of north-central, northeast, central and east-central Wisconsin. Moisture, 

trapped near the surface by weak high pressure, combined with cool temperatures and light winds to form widespread dense fog. 

Vilas - Oneida - Forest - Florence - Marinette - Lincoln - Langlade - Menominee - Oconto - Door - 

Marathon - Shawano - Wood - Portage - Waupaca - Outagamie - Brown - Kewaunee - Waushara - 

Winnebago - Calumet - Manitowoc 

25 2200CST 

0 0 

Strong Wind 

26 1100CST 

Strong winds developed behind a cold front as the front moved through Wisconsin. The strongest wind gusts were 53 mph at Eagle 

River (Vilas county) and 49 mph at Marshfield (Wood county). Numerous gusts in the 40 to 50 mph range were recorded across 

north-central, northeast, central and east-central Wisconsin. 

15 0600CST 

2300CST 

0 0 

Heavy Snow 

Heavy snow fell in the snow belt of northern Iron county, with 11 inches reported at both Hurley and Upson and 7 inches at Saxon 

and Gurney. 

01 0001CST 

0 0 

Other 

16 2359CST 

Madison (Dane Co.) tied the old record of 280 consecutive days with maximum temperatures above 32 degrees set back in 1981 

(February 13 through November 19). From March 11, 1999 through December 15, 1999, the maximum temperature was above the 

freezing mark. December 15th was the latest date for this type of consecutive streak to end. On December 15th, Madison recorded 

0.9 inches of snow, making the 15th the latested day for measurable snow. The previous latest date for measurable snow was 

November 28, 1994. 

Milwaukee (Milwaukee Co.) set a new record for the date of the latest trace of snow...December 5, 1999. The previous latest date for 

a trace snowfall was November 27, 1994. Milwaukee's streak of maximum temperatures above 32 degrees ended on December 15, 

1999 after starting on March 11th. This streak of 281 days was the second longest streak. The record streak was 283 days from 

March 2nd through December 9, 1994. However, the end date of December 15th in 1999 became the latest ending date for this type 

of streak. 

Other locations in southcentral and southeast Wisconsin set new latest trace snow records. Janesville (Rock Co.) didn't record a trace 

until December 22, 1999, breaking the old record by 6 days. West Bend (Washington Co.), didn't record a measurable snowfall until 

December 14th, the latest in the year since 1971. 

Inland lakes didn't have an ice cover until the 2nd or 3rd week of December, which is very late for southern Wisconsin. Above 

average monthly temperatures notched in September, October, November, and December. 

WIZ064>066 Jefferson - Waukesha - Milwaukee 

03 

04 

0100CST 

1400CST 

79 75 

0 

0 

Fog 

December 1999

WISCONSIN, Southeast 

WIZ070>072 Walworth - Racine - Kenosha 

WIZ051>052- 

057>059-063 

03 

04 

03 

04 

0300CST 

1500CST 

Fond Du Lac - Sheboygan - Columbia - Dodge - Washington - Dane 

0400CST 

1000CST 

WIZ062-067>069 Iowa - Lafayette - Green - Rock 

0 

0 

0 

0 

03 2130CST 

0 0 

Fog 

04 1330CST 

Extremely dense fog blanketed southcentral and southeast Wisconsin, resulting in at least 250 motor vehicle. Three people perished 

in accidents (on Highway 14 near Oregon, Dane Co., on Interstate 94 near Farmington, Jefferson Co., and in Green County). All 3 

deaths were indirectly related to the dense fog). At least 40 people were injured (indirect injury). Most airline flights in and out of 

Madison, Milwaukee, and other airports were either delayed or cancelled. The excess atmoshperic moisture formed a frost layer of 

black ice on some road surfaces. Visibilities were reduced to zero to 1/4 mile. Rain fell earlier in the day on Dec 3rd and the winds 

were nearly calm during the fog period. Many schools opened 2 hour late. 

WIZ063-069>072 Dane - Rock - Walworth - Racine - Kenosha 

WIZ051>052- 

058>059-064>065- 

067>068 

WIZ046-056>057- 

062 

12 

13 

13 

WIZ063 Dane 

WISCONSIN, Southwest 

WISCONSIN, West 

2200CST 

2200CST 

0400CST 

2359CST 

0 

Fond Du Lac - Sheboygan - Dodge - Washington - Jefferson - Waukesha - Lafayette - Green 

Marquette - Sauk - Columbia - Iowa 

0 

13 1400CST 

0 0 

Fog 

14 0500CST 

Extremely dense fog blanketed southcentral and southeast Wisconsin, resulting in at least 100 motor vehicle accidents and 30 injuries 

(indirectly related to fog). Visibilities were reduced to zero to 1/4 mile. Many flights were delayed or cancelled at airports. 

0 

0 

26 1200CST 

0 0 100K 

Strong Winds 

27 0600CST 

Stong gusty northwest winds of 40 to 50 mph on Dec 26th across southern Wisconsin eventually caused a 30-foot rip in the 62,000 

square-foot inflatable vinyl roof of the Madison Urban Links Golf Dome (Dane Co.), about 4 miles southwest of the capital square. 

The roof collapsed at 0530CST on Dec 27th based on indoor monitors. No one was in the building at the time. Measured peak wind 

gusts on December 26th were: 47 mph at Sun Praire (Dane Co.), 46 mph at Westfield (Marquette Co.), and 3SE Sullivan (Jefferson 

Co.), and 43 mph at Fond du Lac (Fond du Lac Co.) and Milwaukee (Milwaukee Co.). 



WYOMING, Central and West 

WYZ014>015 Green Mountains - Natrona 

WYOMING, Extreme Southwest 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


17 2300MST 

0 0 


18 1400MST 

High wind event across Natrona County and southern portions of Fremont County. Gusts to 66 mph at KTWO radio station in 

Casper, and sustained 40 to 50 mph winds across parts of southern Fremont County. 


80 76 

Fog 

Fog 

Fog 

Fog 

December 1999

WYOMING, North Central 

WYZ098>099 Northeast Bighorn Mountains - Sheridan Foothills 

19 0000MST 

0600MST 

0 0 

Blizzard 

Moisture associated with an arctic cold front produced heavy snowfall throughout Sheridan County during the early morning hours of 

the 19th. Sheridan received 6 inches of new snow, and Burgess Junction picked up 8 inches. In addition, sustained winds as high as 

41 mph with gusts up to 50 mph produced whiteout conditions in Sheridan. Several road closures were reported in Sheridan County. 

WYZ098>099 Northeast Bighorn Mountains - Sheridan Foothills 

WYOMING, Northeast 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


20 2000MST 

0 0 

Heavy Snow 

22 0800MST 

Strong upslope from moisture rotating around two low pressure systems which dropped slowly southeast through eastern Montana 

and western South Dakota produced heavy snows in Sheridan County. Sheridan received 6 inches of new snow on the night of the 

20th. Much heavier snowfall was reported in the mountains. Burgess Junction picked up 27 inches of new snowfall from the 

evening of the 20th through the morning of the 22nd. 


WYOMING, Southeast 

WYZ065>066 Laramie Valley - Laramie Range 

03 0600MST 

1800MST 

1 4 45K 

Icy roads resulted in a couple of accidents near Laramie, WY, with one fatality 

occurring in a rollover on Interstate 80 about 6 miles west of Laramie, WY. 

M50VE 

WYZ063-066>067 Snowy Range - Laramie Range - Platte 

15 

0420MST 

1545MST 

WYZ063-067-069 Snowy Range - Platte - Cheyenne Foothills 

15 1855MST 

16 1530MST 

Wind gusts to 78 mph reported near Arlington, WY 

81 77 

0 

0 

0 

0 




December 1999



Walnut Ridge 21 

1605CST 

1610CST 

0 

0.01K Hail (0.75) 

Greene County 

1 S Evening Star to 21 1630CST 4 50 0 

75K0 

Tornado (F1) 

1 N Beech Grove 

1635CST 

A tornado touched down near Evening Star and continued northeast toward Beech Grove. At least twelve homes were damaged or 

destroyed. A church was also badly damaged. 

Cross County 

Hickory Ridge 21 

1633CST 0.1 10 0 

0.05K0 

Tornado (F0) 

1638CST 

A tornado briefly touched down near Hickory Ridge producing little damage. While the tornado produced little damage, the storm 

killed hundreds of geese who were killed by the winds and hail accompanying the tornado. 

Greene County 

Light 21 

1635CST 

0 

1640CST 

One business lost its roof. Several trees were blown down. 

25K Thunderstorm Wind 

Clay County 

1 E Knobel to 21 1645CST 12 50 0 

5K0 

Tornado (F0) 

2 S Mc Dougal 

1705CST 

The tornado started east of Knobel and continued northeast. The tornado may have come up and down several times. One home had 

damage to its roof and porch south of the town of Walnut Grove. 

Clay County 

4 SE Knobel to 21 1705CST 16 400 0 

1M0 

Tornado (F4) 

3 SE Mc Dougal 

1730CST 

The tornado started southeast of Knobel and tracked northeast. The most serious damage occurred early in the life of the tornado. 

Two homes were destroyed on County Road 238. Several other homes were damaged. Two trailer trucks were rolled over. As the 

tornado continued east it gradually diminished in intensity. Several trees and power lines were knocked down along the way. 

Craighead County 

Jonesboro 21 

1715CST 

1720CST 

0 

0.10K Hail (1.00) 

Lee County 

Garret 21 

1725CST 0.1 10 0 

0.05K0 

Tornado (F0) 

1730CST 

A tornado briefly touched down near Garret Grove producing minimal damage. 

St. Francis County 

Goodwin 21 

1725CST 0.1 10 0 

0.10K0 

Tornado (F0) 

1730CST 

A tornado briefly touched down in Goodwin with some damage reported. 


2 S Wheatley to 21 1730CST 16 200 0 

9 500K 

Tornado (F2) 

4 W Hawkins 

1750CST 

The tornado moved into the extreme southwest corner of St. Francis county from Monroe county. It touched down several times and 

then lifted back into the air. The most severe damage occurred in and near Wheatley. Thirteen homes were completely demolished 

and six other homes sustained structural damage. Further along its path, the tornado hit a farm about 4.5 miles northeast of Wheatley. 

The farmhouse lost part of its roof. Two or three machine sheds were demolished, several other outbuildings were damaged, grain 

storage bins were flatted and blown several hundreds of feet away and irrigation equipment suffered extensive damage. 


1 W Hoxie 21 

1800CST 0.1 10 0 

0.05K0 

Tornado (F0) 

1805CST 

A tornado briefly touched down just west of Hoxie producing little damage. 

Cross County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


ADDITIONS/CORRECTIONS 

Cherry Vly 21 

1815CST 

1820CST 

0 

0.75K Hail (1.75) 

82 

January 1999



1 W Colt 21 

1815CST 0.1 10 0 

0.05K0 

Tornado (F0) 

1820CST 

A tornado briefly touched down just west of Colt producing minimal damage. 

Poinsett County 

Tyronza 21 

1828CST 

1835CST 

0 

0.01K Hail (0.75) 


4.5 SE Saffell to 21 1836CST 8 25 0 

10K0 

Tornado (F0) 

1 SW Clover Bend 

1850CST 

The tornado moved into Lawrence county from Jackson county. Several trees were knocked down by the tornado. 

Clay County 

1 E Palatka to 21 1850CST 1 75 0 

50K0 

Tornado (F1) 

2 E Palatka 

1855CST 

The tornado started east of Palatka and travelled northeast. Several homes were damaged in the area. 

Crittenden County 

Gilmore 21 

1900CST 

1905CST 

0 

0.05K Hail (0.88) 


1 NW Walnut 

Ridge 

Clay County 

21 

1905CST 0.1 10 0 

0.05K0 

Tornado (F0) 

1910CST 

A tornado briefly touched down just northwest of Walnut Ridge producing minimal damage. 

4 E Datto to 21 1925CST 7 100 0 

8M0 

Tornado (F2) 

3 SW Moark 

1940CST 

The tornado developed east of Datto and moved northeast. Several homes were badly damaged. Several hangars were destroyed and 

some planes were destroyed at the Corning airport. 

Randolph County 

Pocahontas 21 

2000CST 

0 

2130CST 

Some street flooding occurred in Pocahontas due to heavy rains. 

1K Urban/Sml Stream Fld 


2 S Lanieve to 21 2010CST 5 10 0 

0.10K0 

Tornado (F0) 

2 NE Lanieve 

2020CST 

The tornado started south of Lanieve and moved northeast. Little damage occurred with this tornado. 


Forrest City 21 

2038CST 

2045CST 

0 

0.10K Hail (1.00) 

Greene County 

Marmaduke 21 

2050CST 0.1 10 0 

5K0 

Tornado (F0) 

2055CST 

A tornado briefly touched down near Marmaduke knocking a few trees and power lines down. 


4 SW Egypt to 21 2055CST 5 25 0 

50K0 

Tornado (F0) 

1 N Egypt 

2105CST 

The tornado started southwest of Egypt and moved northeast into Lawrence county. Two residences were destroyed. An antenna was 

blown down. 


7 SW Sedgwick to 21 2105CST 2 25 0 

1 10K Tornado (F0) 

5 SW Sedgwick 

2110CST 

The tornado that started near Egypt in Craighead county continued to move northeast into Lawrence county. The tornado damaged 

one home in Lawrence county. A farm shop was destroyed. 



Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



1 N Jonesboro to 21 2120CST 3 20 0 

0.10K0 

Tornado (F0) 

4 N Jonesboro 

2130CST 

The tornado started just north of Jonesboro and moved northeast. The tornado produced little damage. 

83 

January 1999



3.5 NW Lake View 

to 

5 N Lake View 

Greene County 

21 

2140CST 

2150CST 

2.5 20 0 

5K0 

Tornado (F0) 

The tornado started in the northeast corner of Craighead county near the town of Dixie and travelled northeast into Greene county. 

Several trees were knocked down by the tornado. 

Schug to 21 2150CST 3 20 0 

10K0 

Tornado (F0) 

3 NE Schug 

2200CST 

The tornado that started in northeast Craighead county moved into Greene county near the town Schug and continued northeast. a 

couple of houses suffered structural damage in Schug. Several trees were also knocked down. 

Mississippi County 

Wilson 21 

2155CST 0.1 10 0 

0.05K0 

Tornado (F0) 

2200CST 

A tornado briefly touched down near Wilson producing little damage. 


2 SW Bay to 21 2200CST 3 20 0 

5K0 

Tornado (F0) 

1 N Bay 

2210CST 

The tornado started just southwest of Bay and tracked northeast missing the town. Several trees were blown down by the tornado. 


Bay 22 

0300CST 

0 

1K Flash Flood 

Mississippi County 

0600CST 

Heavy rains during the evening hours produced scattered flash flooding in the Bay and Moline areas. Several roads were flooded 

during the early morning hours. 

Manila 22 

0300CST 

0 


Poinsett County 

0600CST 

Heavy rains during the evening hours produced scattered flash flooding across the county. Several roads were flooded during the early 

morning hours. 

Countywide 22 

0300CST 

0 



0600CST 

Heavy rains during the evening hours produced scattered flash flooding across the county. Several roads were flooded during the early 

morning hours. 

1 NE Forrest City 22 

0345CST 

0350CST 

A few large trees were knocked down. 

0 


Phillips County 

West Helena 22 

0405CST 

0 


Crittenden County 

0410CST 

Thirty mobile homes were damaged. An outbuilding was also damaged and a fence was wrapped around a tree. A house under 

construction had the outer frame blown off. A parked 18-wheeler was blown over. 

West Memphis 22 

0530CST 

0535CST 

Several large tree limbs were knocked down. 

0 



Morehouse Parish 

Bastrop 21 

1835CST 

0 

Hail (1.00) 



Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



Bonita 21 

1914CST 

0 

Hail (1.00) 

84 

January 1999



3 N Bonita to 21 1915CST 7 200 0 

20K0 

Tornado (F1) 

5 NE Jones 

1924CST 

This tornado crossed into Ashley County, Arkansas. Roofing was torn off of a house near Jones. Numerous trees and power lines 

were blown down. 

West Carroll 

Parish 

2 S Kilbourne 21 

1945CST 2 50 0 

5K0 

Tornado (F0) 

Several trees were blown down. 

Catahoula Parish 

Countywide 21 

2030CST 

0 

Trees and power lines were blown down across the county. 


East Carroll 

Parish 

Lake Providence 21 

2030CST 

Numerous trees and power lines were blown down. 

0 



1 NE Aimwell 21 

2107CST 1 50 0 

Tornado (F0) 

Tornado was spotted by local law enforcement in an open field. 


Gilbert 21 

2145CST 1 40 0 

Tornado (F0) 


4 ESE Wisner to 21 2145CST 8 50 0 

5K0 

Tornado (F1) 

4 SE Lorelein 

2200CST 

A few trees and power lines were blown down. This tornado continued into Tensas Parish. 


Harrisonburg 21 

2200CST 1 50 0 

10K0 

Tornado (F1) 

One house received minor structural damage and one storage shed was damaged. A thirty foot tall antenna was blown down and 

approximately ten trees were uprooted. 

Tensas Parish 

6 SW New Light to 21 2200CST 14 440 0 

500K0 

Tornado (F3) 

5 NE Tensas Bluff 

2215CST 

A combined fifty house trailers and houses were completely destroyed by this tornado. Hundreds of trees were either downed or 

snapped off. A metal fishing boat was wrapped around a tree. Many cotton hoppers were flipped over several times. Vehicles were 

thrown 250 to 300 feet, one of which was left suspended in a tree. 

Tensas Parish 

Newellton 21 

2215CST 

Numerous trees were blown down. 

0 


Madison Parish 

3 S Tallulah to 21 2230CST 10 100 0 

200K0 

Tornado (F1) 

2 NE Ashley 

2251CST 

Eight 18-wheelers and several cars were blown off of Interstate 20 just east of Tallulah. Five power transmission towers were toppled. 

Many trees were uprooted or split. A large road sign and a television antenna were bent over by winds. Shingles were removed from a 

motel roof. Part of metal awning was torn off of a gas station roof. This tornado continued into Warren County Mississippi. 


Champaign 

County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


St Paris 21 2200EST 

22 0300EST 

Heavy rainfall caused roads to be flooded. 


85 

January 1999 

0 

Flood


Fairfield County 

Pleasantville 21 2300EST 

2 1 

Flood 

22 0200EST 

Heavy rain washed out part of Highway 188. Two cars fell into the washed out area with one person being injured and two killed. 

F3VE, F23VE 

Union County 


22 0300EST 

Heavy rain caused roads to be flooded. 

Darke County 

0 

Flood 

South Portion 22 

0020EST 

0 

Flood 

Preble County 

0350EST 

Several hours of very heavy rainfall caused roads to be flooded. Maple Swamp creek flooded out of its banks causing 18 people to be 

evacuated and 8 homes to be flooded. 

New Paris 22 

0045EST 

0350EST 

0 

Flood 

Heavy rainfall caused roads to be closed and washed out. Evacuations occurred due to high water entering houses. 

Miami County 

Troy 22 

0050EST 

0 

Flood 

Shelby County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


0350EST 


More than 3 inches of rain fell in only a few hours causing creeks and streams to rise out of their banks. Many roads and 

neighborhoods were flooded and a few buildings and homes were flooded. 

Countywide 22 

0053EST 

0 

0350EST 

Heavy rainfall caused many roads and homes to be flooded. 

Flood 

86 

January 1999




Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



La Jolla to 01 0000PST 

0 

Heavy Surf 


2200PST 

Large ocean swells caused surf between 10 and 15 feet along the south San Diego coast. 

87 

February 1999

ARIZONA, Southwest 

Maricopa County 

Phoenix 05 0000MST 

07 0800MST 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



0 


A series of storms moved through Arizona over a 3 day period and produced the 3rd wettest March on record in Phoenix. The highest 

rainfall total in the Valley was 3.54 inches in Mesa. Sky Harbor Airport in Phoenix recorded 2.77 inches from Saturday night to 

Monday noon. Numerous accidents were reported as streets and intersections were flooded at times. 

88 

March 1999

ILLINOIS, Northwest 

Hancock County 

Basco 05 

1820CST 

0 

Funnel Cloud 

Mcdonough 

County 

2 SW Good Hope to 05 1830CST 

5 N Good Hope 

1839CST 

Warren County 

2.5 SW Swan Creek 

to 

1 N Swan Creek 


05 

1839CST 

1845CST 

.5 W Warsaw to 08 1735CST 

1 NE Hamilton 

1756CST 


6.4 100 0 

5.5K0 

Tornado (F2) 

3 100 0 

3K0 

Tornado (F2) 

The tornado first touched down along Highway 9 southwest of Good Hope snapping several trees. From there the tornado moved 

northeast across Town Fork Creek damaging several trees in a densely wooded area and snapping two large trees along a county road. 

Damage along this path was rated F0. 

As the tornado continued northeast it moved through plowed farmland and approached a homestead along 

north-south county road west of Good Hope. The house sustained no structural damage, but several outbuildings suffered substantial 

damage. An older concrete block hog house was destroyed while the roof and sides of a new machine shed were torn off. A grain bin 

was blown about 500 yards from the home site into a neighboring field. Damage along this path was rated F2. 

For the next several miles the tornado tracked through plowed farmland snapping a few trees and blowing over several fences. The 

tornado then approached US Highway 67 just south of the McDonough-Warren County line. 

The tornado snapped two very large oak trees at a homestead with one landing on the house. It continued on a northeast track 

snapping several trees and damaging a roof on a homestead just south of the county line. 

Damage along this path was rated F1. 

The tornado then crossed from McDonough county into Warren county just east of highway 67. As the tornado continued northeast it 

hit a group of farm buildings north of the county line. Three of the buildings sustained major damage. A corn crib was blown on it's 

side while the roof of a barn and shed were destroyed. Damage along this path was rated F1. 

The tornado tracked into the south side of Swan Creek destroying a grain elevator. Just northeast of the elevator the walls of a 

concrete block machine shop were blown in and the building was completely destroyed. 

As is continued northeast it toppled several trees and antennae. Other damage in Swan Creek included two porches torn off 

homesteads and two roofs lifted, but not pulled off homesteads. Damage along this path was rated F2. 

The tornado continued northeast and lifted just north of town. 

7.5 200 0 

15M0 

Tornado (F3) 

Hamilton 08 

1900CST 

0 


A tornado developed just west of Warsaw in Hancock County and produced F2 damage to homes in the south part of the community. 

2 homes were destroyed while another 30 structures suffered damage, including the high school track and football field and 

fairgrounds. Trees and branches were blown down in many parts of town. 

The tornado moved northeast into Hamilton where F3 damage occurred. The tornado destroyed or damaged 144 homes and 

businesses amounting to 10 million dollars in total damage. 4 people suffered minor injuries. The KHQA-TV tower and KOKX radio 

tower were destroyed. Governor George Ryan declared Hancock County a state disaster area. The tornado weakened and lifted just 

northeast of Hamilton. Strong thunderstorms continued over much of Hamilton County in the wake of the tornado producing 

torrential rain and water over various roads in town. 


Page County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



2 NE Clarinda to 08 1348CST 9 100 0 

20K0 

Tornado (F1) 

4 NE Hepburn 

1357CST 

This tornado dissipated around the same time a longer tracked tornado formed near the Adams and Taylor county lines in southwest 

Iowa. In Page county the damage was relatively minor, however, much stronger damage was reported farther to the northeast. 

89 

April 1999

MISSOURI, East 

Knox County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



8 SW Novelty to 08 1635CST 7 100 0 

500K0 

Tornado (F2) 

1 SW Novelty 

1640CST 

A tornado moved from Macon into Knox County southwest of Novelty and caused damage for about 7 miles as it tracked northeast. 

One home completely lost its roof while another lost half of its roof. Another home had the siding peeled off one side. At least 4 

barns, 6 outbuildings and 2 grain bins were destroyed. Several large trees were downed along with power lines and power poles. 

90 

April 1999


Mills County 

1 SW Pacific Jct to 16 1405CST 1 60 0 

5K0 

Tornado (F0) 

1 S Pacific Jct 

1407CST 

This tornado first touched down south of Plattsmouth Nebraska then crossed the Missouri River just southwest of Pacific Junction. It 

downed trees near I-29 and highway 34 and damaged a house before dissipating. 


Kingman County 

Kingman 16 

1716CST 

0 

Hail (0.75) 

Marion County 

3 E Durham 16 

1728CST 0 55 0 

Tornado (F0) 

Brief touchdwon in open country. 


4 E Kingman 16 

1734CST 

0 

Hail (0.75) 

Harvey County 

2 S Patterson 16 

1738CST 

0 

Hail (1.00) 

Marion County 

1 W Ramona 16 

1740CST 

0 

Hail (0.75) 


5 S Kingman 16 

1755CST 

0 

Hail (2.75) 

Marion County 

5 SE Durham to 16 1800CST 2 440 0 

75K0 

Tornado (F1) 

5 SW Lincolnville 

1808CST 

Four outbuildings and two vehicles destroyed. 

Harvey County 

Halstead 16 

1808CST 

0 

Hail (0.75) 


Belmont 16 

1810CST 0 55 0 

Tornado (F0) 

Brief touchdown in open country. 


3 W Kingman to 16 1820CST 4 110 0 

Tornado (F0) 

2 SW Murdock 

1829CST 

Remained over open country. 

Marion County 

4 W Hillsboro to 16 1841CST 10 110 0 

Tornado (F0) 

4 W Durham 

1858CST 

Remained over open country. 

Sedgwick County 

Cheney 16 

1841CST 

0 

Hail (1.75) 


Mt Vernon 16 

1905CST 

0 

Hail (0.75) 


5 SE Kingman 16 

1950CST 

0 

Hail (0.75) 


Belmont 16 

1951CST 

0 

Hail (1.00) 

Marion County 

3 NE Lehigh 16 

1955CST 

0 

Hail (0.75) 


Wichita 16 

2001CST 

0 

Hail (1.75) 



Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



Belmont 16 

2013CST 

0 

Hail (0.88) 

91 

May 1999



Wichita 16 

2110CST 

2119CST 

0 

Hail (0.75) 

Butler County 

7 S Whitewater 16 

2118CST 

0 

Hail (0.75) 


Wichita 16 

2120CST 

0 



2359CST 

Torrential rains caused widespread flooding across the Wichita metropolitan area with water as much as 3 feet deep in some areas. In 

Northwest Wichita, flash flooding broke out windows at one residence causing water to flow into the basement. 

Wichita 16 

2130CST 

2131CST 

0 


Tree limbs blown down at intersection of West 29th Street and Amidon. 

Barton County 

Albert 16 

2255CST 

0 

175K Hail (1.75) 

Golfball-sized hail damaged farm dwellings and approximately 70% of total acreage. 

Barton County 

2 NW Great Bend 16 

2303CST 

0 

Hail (1.00) 

Barton County 

3 N Albert 16 

2312CST 

0 

Hail (1.75) 

Barton County 

3 N Albert 16 

2312CST 

0 


Barton County 

Ellinwood 16 

2315CST 

0 


Saline County 

2 E Salina 16 

2315CST 

0 

Hail (0.88) 

Barton County 

2 E Hoisington 16 

2317CST 

All windows broken on west side of house. 

0 

1K Hail (1.75) 

Barton County 

Great Bend 16 

2320CST 

0 

Hail (0.75) 

Ellsworth County 

2 SW Holyrood 16 

2336CST 

2340CST 

0 

Hail (1.75) 

Golfball-sized hail damaged approximately 15,000 acres of crops including 20-30% of the wheat crop. 

Rice County 

Lyons 16 

2349CST 

0 

Hail (0.75) 

Rice County 

Silica to 16 2350CST 

Chase 

17 

0015CST 

Rice County 

0 

100K Hail (1.75) 

Marble to golfball-sized hail damaged roofs, vehicles, numerous trees and broke windows. A total of 85,000 acres of farmland 

(wheat, corn and alfalfa) were affected. 

Silica to 16 2350CST 

0 


Chase 

17 

0015CST 

Ellsworth County 

10 E Lorraine 16 

2353CST 

0 


Wilson County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



Fredonia 16 

2355CST 

0 

Hail (0.75) 

92 

May 1999


KSZ082 Kingman 

Allen County 

17 

0001CST 

0200CST 

Several roads under water in Murdock. 

0 

Flood 

Iola to 17 0020CST 

0 


La Harpe 

0030CST 

Numerous trees blown down, a few with trunks 2 feet in diameter. 

Neosho County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 


Erie to 17 0035CST 

2 SW Erie 

0045CST 

Large tree blown into a house in Erie. 


93 

May 1999 

0 

2.5K Thunderstorm Wind (G52)

ILLINOIS, Southwest 

Montgomery 

County 

5.5 W Raymond to 01 1758CST 10 200 1 4 

Tornado (F3) 

6 E Farmersville 

1810CST 

A tornado first formed about 1 mile southwest of I-55 west of Raymond. The tornado moved northeast hitting a rest area along I-55. 

Six tractor-trailer trucks were overturned at the rest area, killing one driver and injuring 4 others. Two other trucks were also 

overturned just north of the rest area. The tornado continued northeast and intensified causing damage at two farms. Numerous barns 

and other outbuildings were destroyed and one house severely damaged. The occupant of the house escape injury by taking shelter in 

an interior closet. M54VE 

Montgomery 

County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



2 NW Harvel to 01 1811CST 1.5 50 0 

Tornado (F0) 

1 N Harvel 

1813CST 

A small tornado formed northwest of Harvel and tracked northeast into Christian County. Damage was limited to trees and crops. 

94 

June 1999


Arapahoe County 

Aurora Cherry 

Creek 

Arapahoe County 

Aurora Cherry 

Creek 

Adams County 

03 

1450MST 

0 

Hail (0.75) 

03 

1504MST 

0 

Hail (1.00) 

12 N Bennett 03 

1558MST 

0 

Hail (1.00) 

Denver County 

Denver 03 

1637MST 

0 

Hail (0.75) 

Weld County 

Gilcrest 03 

1640MST 

1655MST 

0 

Hail (1.75) 

Weld County 

Greeley 03 

1655MST 

0 

Hail (1.75) 

Morgan County 

5 S Ft Morgan 03 

1755MST 0.1 25 0 

0 

Tornado (F0) 

A tornado touched down briefly but did no damage. 

Logan County 

2 N Merino 03 

1821MST 

0 

Hail (1.75) 

Weld County 

Greeley 03 

1825MST 

0 

Hail (1.00) 

Logan County 

7 ESE Sterling 03 

1900MST 

0 

Hail (1.00) 

Weld County 

4 NW Greeley 03 

1900MST 

0 

Hail (0.75) 

Logan County 

5 W Fleming 03 

1925MST 0.1 25 0 

0 

Tornado (F0) 

A tornado touched down briefly but did no damage. 

Logan County 

Dailey 03 

1930MST 

0 

Hail (1.75) 

Phillips County 

5 NW Haxtun 03 

1930MST 

0 

Hail (1.75) 


13 S Ovid 03 

2015MST 

0 

Hail (1.25) 

Large hail damaged homes and automobiles in Weld, Logan, Sedgwick and Phillips Counties. 

TEXAS, Central Southeast 

Montgomery 

County 

2 E Cut And Shoot 08 

1515CST 

0 

Two foot diameter tree blown onto pickup truck in Midway. 


Harris County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



La Porte 08 

1900CST 

0 

15K Hail (0.75) 

95 

September 1999


Benton County 


21 1200CST 

Camden County 


21 1200CST 

Dent County 


21 1200CST 

Hickory County 


21 1200CST 

Pulaski County 


21 1200CST 

St. Clair County 


21 1200CST 

Stone County 


21 1200CST 

Texas County 


Time 

Path Path 

Number of 

Estimated 


Persons 

Damage 



0 


0 


0 


0 


0 


0 


0 



0 


21 1200CST 

Winds gusting in excess of 40 mph along with afternoon humidity less than 25% on the 18th provided a high fire danger 

environment. A number of accidental and arson created fires developed over central and southern Missouri by early afternoon on the 

18th. 

From the 18th through the 21st, fires burned 1500 acres in the western sections of the Mark Twain National Forest. Eleven suspected 

arson fires also burned 1100 acres near Salem in Dent County. Other large fires of over 1000 acres occurred near Roby in northern 

Texas County and near Fort Leonard Wood in southern Pulaski County. 

Numerous other smaller fires started over the area on the 18th and continued for two to three days until they were considered under 

control. 

The intensity and magnitude of these fires were unusual for the area. Although most of the fires were confined to grassland and near 

surface material, the high winds and dry conditions caused by several months of below normal rainfall caused some larger scale fires 

with the burning of larger trees. 

96 

November 1999

Fatality Location Abbreviations: 

Reference Notes: 

BF Ball Field MH Mobile Home 

BO Boating OT Other 

BU Business OU Outside/Open Areas 

CA Camping PH Permanent Home 

EQ Heavy Equipment/Construction SC School 

GF Golfing TE Telephone 

IW In Water UT Under Tree 

LS Long Span Roof VE Vehicle 

List of Acronyms: 

WCM - Warning Coordination Meteorologist 

NWS - National Weather Service 

NOAA - National Oceanic and Atmospheric Administration 

DST - Daylight Savings Time 

LST - Local Standard Time 

LDT - Local Daylight Time 

Other Notes: 

When listing wind speed values under “Character of Storm”, ex. High Wind (G81), the “G” indicates a “Gust” 

which is a peak 5-second averaged wind speed in Knots (kts). 1 kt. = 1.152 mph. 

When listing hail size under “Character of Storm”, ex. Hail (2.25), the hail size is given in inches and 

hundredths of inches. 

When listing property and crop damage, the figures indicated are the best guess made by the NWS from the 

available sources of information at the time of the printing. 

97

Category One Hurricane: 

The Saffir-Simpson Scale 

Winds 74-95 mph (64-82 kt or 119-153 kph). Storm surge generally 4-5 ft above normal. No real damage to 

building structures. Damage primarily to unanchored mobile homes, shrubbery, and trees. Some damage to 

poorly constructed signs. Also, some coastal road flooding and minor pier damage. 

Category Two Hurricane: 

Winds 96-110 mph (83-95 kt or 154-177 kph). Storm surge generally 6-8 feet above normal. Some roofing 

material, door, and window damage of buildings. Considerable damage to shrubbery and trees with some trees 

blown down. Considerable damage to mobile homes, poorly constructed signs, and piers. Coastal and lowlying 

escape routes flood 2-4 hours before arrival of the hurricane center. Small craft in unprotected 

anchorages break moorings. 

Category Three Hurricane: 

Winds 111-130 mph (96-113 kt or 178-209 kph). Storm surge generally 9-12 ft above normal. Some structural 

damage to small residences and utility buildings with a minor amount of curtainwall failures. Damage to 

shrubbery and trees with foliage blown off trees and large tress blown down. Mobile homes and poorly 

constructed signs are destroyed. Low-lying escape routes are cut by rising water 3-5 hours before arrival of 

the hurricane center. Flooding near the coast destroys smaller structures with larger structures damaged by 

battering of floating debris. Terrain continuously lower than 5 ft above mean sea level may be flooded inland 

8 miles (13 km) or more. Evacuation of low-lying residences with several blocks of the shoreline may be 

required. 

Category Four Hurricane: 

Winds 131-155 mph (114-135 kt or 210-249 kph). Storm surge generally 13-18 ft above normal. More 

extensive curtainwall failures with some complete roof structure failures on small residences. Shrubs, trees, 

and all signs are blown down. Complete destruction of mobile homes. Extensive damage to doors and 

windows. Low-lying escape routes may be cut by rising water 3-5 hours before arrival of the hurricane center. 

Major damage to lower floors of structures near the shore. Terrain lower than 10 ft above sea level may be 

flooded requiring massive evacuation of residential areas as far inland as 6 miles (10 km). 

Category Five Hurricane: 

Winds greater than 155 mph (135 kt or 249 kph). Storm surge generally greater than 18 ft above normal. 

Complete roof failure on many residences and industrial buildings. Some complete building failures with 

small utility buildings blown over or away. All shrubs, trees, and signs blown down. Complete destructon of 

mobile homes. Severe and extensive window and door damage. Low-lying escape routes are cut by rising 

water 3-5 hours before arrival of the hurricane center. Major damage to lower floors of all structures located 

less than 15 ft above sea level and within 500 yards of the shoreline. Massive evacuation of residential areas 

on low ground within 5-10 miles (8-16 km) of the shoreline may be required. 

98

F-Scale Intensity Wind Speed 

(mph) 

The Fujita Scale 

Typical Damage 

F0 Gale Tornado 40 - 72 Some damage to chimneys; breaks 

branches off trees; pushes over 

shallow-rooted trees; damages sign 

boards. 

F1 Moderate 73 - 112 The lower limit is the beginning of 

hurricane wind speed; peels surface 

off roofs; mobile homes pushed off 

foundations or overturned; moving 

autos pushed off the roads; attached 

garages may be destroyed. 

F2 Significant 113 - 157 

Considerable damage. Roofs torn 

off frame houses; mobile homes 

demolished; boxcars pushed over; 

large trees snapped or uprooted; 

light object missiles generated. 

F3 Severe 158 - 206 Roof and some walls torn off well 

constructed houses; trains 

overturned; most trees in fores 

uprooted 

F4 Devastating 207 - 260 Well-constructed houses leveled; 

structures with weak foundations 

blown off some distance; cars 

thrown and large missiles 

generated. 

F5 Incredible 261 - 318 Strong frame houses lifted off 

foundations and carried 

considerable distances to 

disintegrate; automobile sized 

missiles fly through the air in 

excess of 100 meters; trees 

debarked; steel re-inforced concrete 

structures badly damaged. 

F6 Inconceivable 319 - 379 These winds are very unlikely. The 

small area of damage they might 

produce would probably not be 

recognizable along with the mess 

produced by F4 and F5 wind that 

would surround the F6 winds. 

* From the Journal of Atmospheric Science, August 1981, p. 1517-1519 

99

To change your address, please return a copy of the mailing label with your new 

address to: National Climatic Data Center (Subscription Services). 

Inquiries/Comments Call: (828) 271-4800 (Voice) 

(828) 271-4010 (TDD) 

(828) 271-4876 (Fax) 


Room 120 


Asheville, NC 28801-5001 

OFFICIALBUSINESS 

PENALTYFOR PRIVATE USE $300 

ADDRESSCORRECTIONREQUESTED 

BULK RATE 

POSTAGE &FEES PAID 

United States Department of Commerce 

NOAAPermit No. G - 19 

BOUND PRINTED MATTER

Storm Data and Unusual Weather Phenomena - CIG - Mesonet

Create successful ePaper yourself

Delete template?

Save as template?