Storm Data and Unusual Weather Phenomena - CIG

CALIFORNIA, NortheastCAZ073MonoCAZ072CAZ072CAZ072CAZ072CAZ072CAZ072CAZ071CAZ072CAZ072CAZ071CAZ072CAZ073Storm Data and Unusual Weather PhenomenaTimeLocal/PathLengthPathWidthNumber ofPersonsEstimatedDamageLocation Date Standard (Miles) (Yards) Killed Injured Property Crops Character of StormJanuary 199719212340PST0640PST0 0Heavy SnowA weather spotter in the town of Mammoth Lakes reported a storm total of 2 feet of snow in a 36 hour period.Greater Lake Tahoe Area20 0350PST1350PST0 0Heavy Snow10 inches of snow fell at Truckee in about a 10 hour period.Greater Lake Tahoe Area20 0515PST0 0Heavy Snow1715PSTThe California Department of Transportation measured about 15 inches of snow over Donner Summit (near 7200 feet) in about a12 hour period.Greater Lake Tahoe Area20 0710PST0 0Heavy Snow21 0710PSTThe California Department of Transportation measured 22 inches of snow in a 24 hour period at Kingvale.Greater Lake Tahoe Area21 1855PST0 0Heavy Snow22 0455PSTA weather spotter near the Sugar Bowl Ski Resort measured 12 inches of snow at the 7,000 foot level in about a 10 hour period.Greater Lake Tahoe Area21 2145PST0 0Heavy Snow22 0345PSTThe California Department of Transportation measured about 7 inches of snow in 6 hours at Kingvale. Snow was falling at therate of about 1 inch an hour.Greater Lake Tahoe Area22 0100PST0 0Heavy Snow1300PSTA weather spotter in the Olympic Valley (Placer County) measured 15 inches of snow in a 12 hour period.Lassen/Eastern Plumas/Eastern Sierra22 0600PST0 0 200KHeavy Snow1700PSTSeveral power poles and lines were reported snapped from heavy wet snow in Lassen, eastern Plumas, and eastern SierraCounties. Approximately 11,000 customers lost power throughout this region. Some trees had fallen on some structures as well.Greater Lake Tahoe Area22 0630PST0 0Heavy Snow23 0630PSTHeavy wet snow fell on many ski resorts in the Lake Tahoe area. Some 24 hour storm totals were as follows: 3 feet at Mt. Rose,3.5 feet at Sierra at Tahoe, 4 feet at Kirkwood, and 3 feet at Alpine Meadows.Greater Lake Tahoe Area22 0745PST0 0Heavy Snow1345PSTA weather spotter along Brockway Pass (Placer County) reported 11 inches of snow in a 6 hour duration.Lassen/Eastern Plumas/Eastern Sierra22 0810PST0 0Heavy Snow2010PSTA weather spotter reported 16 inches of snow in Susanville in a 12 hour period.Greater Lake Tahoe Area22 0825PST0 0Heavy Snow2025PSTA weather spotter along Brockway Pass measured 2 feet of snow in a 12 hour period. Also, 12-24 inch snowfall amounts werecommon around Lake Tahoe during the same time frame. Several avalanches occurred over a few roads and highways aroundLake Tahoe, but there was no damage to vehicles. Interstate 80, Highway 431 (Mt. Rose Highway), and U.S. Highway 50 wereclosed at times Wednesday afternoon and evening due to the heavy wet snowfall.Mono22 1305PST0 0Heavy Snow23 0105PSTA weather spotter in the town of Mammoth Lakes measured 12 inches of snow in a 6 hour period. The storm total over a 12 hourduration was 16 inches.18 25