Storm Data and Unusual Weather Phenomena - CIG

ALABAMA, Southwest
Mobile County
Grand Bay
03
Choctaw County
Pushmataha
Covington County
Red Level
Baldwin County
Central Portion
Mobile County
South Portion
Mobile County
South Portion
Baldwin County
Central Portion
ALASKA, Northern
AKZ223
AKZ223-226
AKZ219
Storm Data and Unusual Weather Phenomena
Time
Local/
Path
Length
Path
Width
Number of
Persons
Estimated
Damage
Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm
07
11
1420CST
1422CST
1525CST
1527CST
1530CST
1532CST
0
0
0
0
0
0
Hail (0.88)
Hail (0.88)
Hail (0.75)
18 0550CST
0 0 500K
Flash Flood
1600CST
Excessive rainfall occurred over a 12 hour period, with radar estimating rainfall totals of 11 to 15 inches.. This produced flooding from
Bay Minette to Spanish Fort to Daphne. Bay Minette had eleven homes flooded, and several homes were also flooded in the Daphne
area. Several roads were closed, and a few bridges were washed out. The bridge washouts forced residents to take long detours for
several weeks, until the bridges were rebuilt.
18 0550CST
0 0
Flash Flood
0900CST
Eight to ten inches of rainfall was estimated by radar across the south portion of Mobile county over a six hour period. Heaviest rains
occurred between Seven Hills and Grand Bay. Several roads in the area had to be closed for a few hours due to high waters. After the
rains ended, the roadways quickly drained.
18 1000CST
0 0
Flash Flood
1030CST
Heavy rainfall again developed and caused temporary additional flooding of some secondary roads.
May 2003
19 0500CST
0 0
Flash Flood
0700CST
Heavy rains from slow moving thunderstorms again moved across the same area that had flooded streets on May 18. Several streets had
to again be temporarily closed due to high water. The roads became passable after the thunderstorms had moved south of the area.
Radar estimated that 3 to 5 inches of rain fell from the thunderstorms during a three hour period.
Deltana And Tanana
01 0000AST
0 0 2M
Flood
04 1600AST
Event continued from April. Snowmelt and icemelt caused water to rise on the Tanana River and Piledriver Slough, and resulting in
minor flooding of various properties beginning the night of the 25th. Ice buildup on roads and properties was created first by an Ice Jam
event on the Tanana River during November 2002, and then surface water and groundwater flooding in early January 2003, resulting in
up 2-foot thick layers of ice on the Old Richardson Highway and on properties near the Piledriver slough. On April 29th, another ice
jam formed on the nearest branch of the Tanana River, next to the partial one that had formed and remained since November. This
caused water from the Tanana River to flow into Piledriver Slough. The water in Piledriver Slough then went overbank and flooded
properties and some homes, threatening other homes. By late afternoon on the 29th, water continued to rise breaching a dike on the
Tanana River and rapidly raising water levels in the area. Water continued to rise into the beginning of May, flooding about 100 homes
in all and threatening another 50 homes. The Old Richardson Highway was impassible, which is the main road serving many of the
residents in this subdivision. During the first few days of May water levels fluctuated, but homes remained flooded or surrounded by
water. On the morning of May 3rd, the Ice Jam shifted and gradually moved downstream, and water levels began dropping significantly.
By late afternoon on May 4, the water was completely contained inside the Tanana River, and Piledriver Slough had also dropped
significantly. Many surrounding areas still had ponded water due to the high groundwater level. The Fairbanks North Star Borough
Department of Emergency Services and Salcha Rescue activated an Incident Command Center in the area and helped those residents
requesting evacuation. Property Damage is an estimate. Event continued into May.
Deltana And Tanana - Ne. Slopes Of The Ern Ak Rng
09 1200AST
0 0
High Wind (G61)
10 0719AST
A strong occlusion moved north over the Alaska Range the night of the 9th creating strong south winds through Isabel Pass of zone 226
and in the Delta Junction area (Zone 223). The Delta Junction ASOS recorded a peak gust to 66 mph. Based on this measurement and
the observed pressure gradient, winds in zone 226 are estimated gusting to 70 mph.
Upper Koyukuk Valley
11 2000AST
0 0 3.5K
Flood
12 1500AST
An ice jam formed approximately 2 miles downstream from the village of Hughes on the Koyukuk River. Water which backed up
behind the ice jam inundated Hughes with a few feet of water. The high water washed out two taxiways at the airport, flooded several
houses, littered the village with large chunks of ice, and knocked over two fuel tanks. Damage amount consists of $3000 to repair
taxiways, and an estimated $500 to repair/upright the fuel tanks.
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