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Weston County Historical Floods

LocationStart DateInformation
Newcastle 1-Aug-1960 A flood considered to be a 50 year event occurred. Water was reported over Highway 16 near the refinery.
Newcastle 1-Jun-1961 A flood considered to be a 50 year event occurred. Water was reported over Highway 16 near the refinery.
Niobrara and Weston 21-Jul-1973 Torrential rains accompanied by hail caused flash flooding in the area creek and river, making roads impassable in spots and damaging bridges. Several earthen dams went out. Although hail size was not specified, banks of hail 3 to 4 feet high were observed along roads and creeks. Crop and property damage was substantial.
Upton 25-Jun-1975 A severe thunderstorm dumped large hail and heavy rain in and near Upton. Streets in Upton were temporarily flooded.
Central and North portions of Wyoming 15-May-1978 Heavy wet snow and record rains did very extensive damage to property, crops, and livestock in 12 counties. Hundreds of homes were damaged, and many totally destroyed. Numerous bridges and sections of roads were washed out, power lines downed, with much damage to cars and personal property. Total estimated damages came to $15.5 million. The following are discharge amounts from WEMA Storm Data: Fifteenmile Creek near Worland (May 18) - 4,270 CFS, Big Horn River at Worland (May 19) - 17,500 CFS, Nowood River near Ten Sleep (May 19) - 3,380 CFS, Shoshone River near Lovell (May 18) - 7,680 CFS), Elk Creek near Basin (May 19) - 2,450 CFS, Shell Creek near Greybull (May 19) - 2,150 CFS, Big Horn River near Kane (May 20) - 20,700 CFS, Little Powder River below Corral Creek near Weston (May 18) - 2,410 CFS, Little Powder River above Dry Creek near Weston (May 19) - 4,460 CFS, Little Powder River above Dry Creek near Weston (May 19) - 5,300 CFS, Salt Creek near Sussex (May 18) - 10,200 CFS, Dead Horse Creek near Buffalo (May 18) - 1,420 CFS, Clear Creek below Rock Creek 162? CFS, Powder River near Kaycee (May 18) - 4,200 CFS, Powder River at Sussex (May 19) - 24,000 CFS, South Fork River near Kaycee (May 20) - 8,200 CFS, Bitter Creek near Garland (May 17) - 552 CFS, Whistle Creek near Garland (May 18) - 2,340 CFS, Shoshone River below Buffalo Bill Reservoir (May 19) - 1,230 CFS, Shoshone River near Garland (May 19) - 4,550 CFS, Goose Creek below Sheridan (May 18) - 5,430 CFS, Prairie Dog Creek near Acme (May 19) - 3,940 CFS, Clear Creek at Ucross 1740 (May 19) - 32,500 CFS, Crazy Woman Creek at Upper Station (May 20) - 2,200 CFS, Little Thunder Creek near Hampshire (May 18) - 3,030 CFS, Black Thunder Creek near Hampshire (May 18) - 5,050 CFS, Turner Creek near Osage (May 18) - 2,480 CFS, Beaver Creek near Newcastle (May 19) - 3,870 CFS. The event was estimated to be a 20- to greater than 100-year flood
Four Corners 2-Jul-1998 A stationary storm produced several inches of rain, causing Oil Creek to flood. Oil Creek Road was washed out in several places.
Weston County, Newcastle12-Aug-2005A supercell thunderstorm developed south of Gillette and moved east-southeast across east central Campbell County and northern Weston County. The storm produced hail to the size of golf balls, wind gusts to 60 mph, and heavy rain.
Upton 24-Jul-1998 Heavy rain of 3.5 inches in one hour caused minor flooding.
Upton 4-Jun-2001 Locally heavy rain produced minor flooding over rural areas of Crook and Weston Counties during the evening hours. Small streams rose out of their banks and 6 inches of standing water was reported on highways. By 8 p.m. MST the rain had tapered off, and by midnight, the streams had receeded back within thier banks.