Wyoming Moderate Special Weather Statement | Effective 08/18/2026 16:17

Headline: 
Special Weather Statement issued August 18 at 5:17PM MDT by NWS Riverton WY
Event: 
Special Weather Statement
Urgency: 
Expected
Effective: 
August 18, 2026 - 4:17pm
Expires: 
August 18, 2026 - 4:45pm
Description: 
At 517 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from Shell to near Manderson. Movement was southeast at 25 mph. HAZARD...Wind gusts of 50 to 55 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. These storms will remain over mainly rural areas of southeastern Big Horn and north central Washakie Counties.
Instruction: 
If outdoors, consider seeking shelter inside a building.
Area Description: 
North Bighorn Basin; Southeast Bighorn Basin; Bighorn Mountains West
Forcast Office: 
NWS Riverton WY
Sender: 
w-nws.webmaster@noaa.gov