Numerous weather advisories in effect for Fremont CountyJun 5, 2015 Staff
The National Weather Service in Riverton has issued a flash flood warning for east central Fremont County that is in effect until 11:30 p.m. Friday.
Locations that will experience flooding include Shoshoni, Bonneville and eastern Boysen State Park.
The NWS said up to 3 inches of rain had fallen in the region by 5:24 p.m., and flash flooding was expected to begin shortly.
Around 5:50 p.m., the Wyoming Department of Transportation closed U.S. Highway 20/26 both directions between Moneta and Casper due to a "weather emergency." The NWS reported that flood waters had moved across the highway. The route reopened around 8:20 p.m. Friday.
The following streams and drainages also are affected by the flash flood warning: Sand Hills Draw, Reservoir Creek, Wind River, Dry Creek, Muskrat Creek, Poison Creek, Water Tank Hill Draw, Schoening Creek, Hoodoo Creek, Dry Cheyenne Creek, East Fork Dry Creek and Badwater Creek.
The NWS wants to remind residents in these locations to move to higher ground, and drivers should turn around when they encounter flooded roads. The agency said most flood deaths occur in vehicles.
Flash flood watch
Other areas of the county, including the Lander foothills and Wind River Basin, are under a flash flood watch until midnight Friday.
According to the NWS, "a flash flood watch means that conditions may develop that lead to flash flooding."
Strong to severe thunderstorms Friday may produce 1 to 2 inches of rain, meaning additional river rises and rock or mud slides around mountain passes and canyons will be possible.
UPDATE AT 8:30 P.M.: Severe thunderstorm warning
The severe thunderstorm warning for the Riverton area has been allowed to expire.