Wyoming Severe Severe Thunderstorm Warning | Effective 06/20/2026 14:56

Headline: 
Severe Thunderstorm Warning issued June 20 at 3:56PM MDT until June 20 at 4:30PM MDT by NWS Riverton WY
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
June 20, 2026 - 2:56pm
Expires: 
June 20, 2026 - 3:30pm
Description: 
SVRRIW The National Weather Service in Riverton has issued a * Severe Thunderstorm Warning for... Eastern Natrona County in central Wyoming... * Until 430 PM MDT. * At 355 PM MDT, severe thunderstorms were located along a line extending from 7 miles east of Hole In The Wall to near Edgerton to 9 miles northeast of Rolling Hills, moving northeast at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * These severe thunderstorms will remain over mainly rural areas of eastern Natrona County, including the following locations... Edness K Wilkins State Park, Casper Mountain, Casper-Natrona County International Airport, Casper Events Center, Fort Caspar Campground, Central Wyoming Fairgrounds, Bessemer Bend, Casper Mountain County Park, Rotary Park, and Casper Natural Gas Processing Plant. This includes Interstate 25 between mile markers 176 and 219.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Natrona, WY
Forcast Office: 
NWS Riverton WY
Sender: 
w-nws.webmaster@noaa.gov