


Hazardous Weather Outlook
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
861 FLUS45 KRIW 191805 HWORIW Hazardous Weather Outlook National Weather Service Riverton WY 1205 PM MDT Sat Jul 19 2025 WYZ001>020-022>030-201300- 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- 1205 PM MDT Sat Jul 19 2025 ...Fire Weather Watch Posted for Portions of Southwest and Central Wyoming 12 PM to 8 PM Sunday... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...This Afternoon and Tonight. Isolated showers and thunderstorms will be capable of producing gusty outflow wind of 40 to 50 mph until ending around 7 PM. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Sunday...Elevated to critical fire weather conditions across portions of southwest and central Wyoming due to low relative humidity and gusty westerly wind. A few afternoon thunderstorms over far southwest Wyoming could again produce gusty outflow wind of 40 to 50 mph. Tuesday through Friday...Afternoon and evening showers and thunderstorms are possible across the area each day. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. $$