Severe · Severe Thunderstorm WarningThis alert has expired. It is kept for reference.

Severe Thunderstorm Warning issued September 6 at 9:43PM MDT until September 6

Affecting Converse, WY; Niobrara, WY; Platte, WY

In effect until: Sep 7, 2026, 4:00 AM

Converse, WY; Niobrara, WY; Platte, WY

Confirmed across 3 counties in WY; expires 4:00 AM.

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.

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At 943 PM MDT, severe thunderstorms were located along a line
extending from 10 miles west of Keeline to Oregon Trail Ruts State
Historic Site, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Guernsey, Glendo, Hartville, Sibley Peak, 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, and Cassa.

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Severe Thunderstorm Warning issued September 6 at 9:43PM MDT until September 6

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