Wyoming Severe Severe Thunderstorm Warning | Effective 06/20/2026 17:37

Headline: 
Severe Thunderstorm Warning issued June 20 at 6:37PM MDT until June 20 at 7:15PM MDT by NWS Riverton WY
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
June 20, 2026 - 5:37pm
Expires: 
June 20, 2026 - 6:15pm
Description: 
SVRRIW The National Weather Service in Riverton has issued a * Severe Thunderstorm Warning for... Sublette County in west central Wyoming... Southeastern Lincoln County in west central Wyoming... Northwestern Sweetwater County in south central Wyoming... * Until 715 PM MDT. * At 637 PM MDT, a severe thunderstorm was located 9 miles east of Marbleton, which is 11 miles east of Big Piney, moving east at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Big Sandy. This includes Interstate 80 between mile markers 82 and 86.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Lincoln, WY; Sublette, WY; Sweetwater, WY
Forcast Office: 
NWS Riverton WY
Sender: 
w-nws.webmaster@noaa.gov