Hazardous Weather Outlook
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
028 FLUS45 KRIW 010953 HWORIW Hazardous Weather Outlook National Weather Service Riverton WY 353 AM MDT Fri Aug 1 2025 WYZ001>020-022>030-021400- Yellowstone National Park-Absaroka Mountains-Cody Foothills- North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin- Owl Creek and Bridger Mountains-Bighorn Mountains West- Bighorn Mountains Southeast-Northeast Johnson County- Southeast Johnson County-Teton and Gros Ventre Mountains- Jackson Hole-Wind River Mountains West-Wind River Mountains East- Upper Wind River Basin-Wind River Basin-Lander Foothills- Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain-Star Valley- Salt River and Wyoming Ranges-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- 353 AM MDT Fri Aug 1 2025 This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and tonight. Another round of showers and thunderstorms will return this afternoon and evening. The best chances will be across locations east of the Divide. A strong storm or two cannot be ruled out today with the main concerns as a result of any strong storms being strong gusty winds and small hail. Elevated fire weather conditions may be possible over portions of southern WY. Min RH in this area will range from 10 to 15 percent with breezy winds developing in the afternoon with periodic gusts of 20 to 30 mph. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Saturday through Monday...Daily chances for afternoon showers and thunderstorms. The best chances will remain over central and northern WY with lesser chances elsewhere. Low min RH and breezy winds will persist across southern WY. These conditions are expected to gradually spread north through the weekend. This may lead to elevated or near critical fire weather conditions into the start of next week. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. $$