


Special Weather Statement
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
728 WWUS85 KRIW 212330 SPSRIW Special Weather Statement National Weather Service Riverton WY 530 PM MDT Thu Aug 21 2025 WYZ008-009-220000- Bighorn Mountains Southeast-Bighorn Mountains West- 530 PM MDT Thu Aug 21 2025 ...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL JOHNSON AND EAST CENTRAL WASHAKIE COUNTIES THROUGH 600 PM MDT... At 530 PM MDT, Doppler radar was tracking a strong thunderstorm near Dullknife Reservoir, which is 16 miles east of Ten Sleep, moving east at 25 mph. HAZARD...Wind gusts up to 50 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could blow around unsecured objects. Minor hail damage to vegetation is possible. This strong thunderstorm will be near... Dullknife Reservoir around 535 PM MDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 4389 10685 4391 10689 4389 10688 4387 10727 4390 10728 4391 10727 4395 10727 4399 10730 4405 10731 4415 10684 4389 10680 TIME...MOT...LOC 2330Z 259DEG 21KT 4400 10713 MAX HAIL SIZE...0.50 IN MAX WIND GUST...50 MPH $$ TL