Wyoming Severe Severe Thunderstorm Warning | Effective 09/06/2026 20:17

Headline: 
Severe Thunderstorm Warning issued September 6 at 9:17PM MDT until September 6 at 10:00PM MDT by NWS Cheyenne WY
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
September 6, 2026 - 8:17pm
Expires: 
September 6, 2026 - 9:00pm
Description: 
SVRCYS The National Weather Service in Cheyenne has issued a * Severe Thunderstorm Warning for... Southwestern Niobrara County in east central Wyoming... Northern Platte County in southeastern Wyoming... East central Converse County in east central Wyoming... * Until 1000 PM MDT. * At 916 PM MDT, severe thunderstorms were located along a line extending from near Glendo to Westview Circle, moving northeast at 35 mph. HAZARD...70 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Wheatland, Guernsey, Glendo, Hartville, Lakeview North, Sibley Peak, Westview Circle, Glendo State Park, Register Cliff State Historic Site, Reno Cove Campground, Sandy Beach Campground, Sandy Cove Campground, Two Moon Campground, Guernsey State Park, Keeline, Oregon Trail Ruts State Historic Site, Dwyer Junction, Bennett Hill Campground, Lost Springs, and Cassa.
Instruction: 
For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Area Description: 
Converse, WY; Niobrara, WY; Platte, WY
Forcast Office: 
NWS Cheyenne WY
Sender: 
w-nws.webmaster@noaa.gov