Hazardous Weather Outlook
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
627 FLUS45 KRIW 051000 CCA HWORIW Hazardous Weather Outlook...CORRECTED National Weather Service Riverton WY 254 AM MST Fri Dec 5 2025 WYZ001>020-022>030-061400- 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- 254 AM MST Fri Dec 5 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FOR THE TETON AND GROS VENTRE MOUNTAINS AND THE SALT RIVER AND WYOMING RANGES UNTIL 2 PM MST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR YELLOWSTONE NATIONAL PARK AND THE ABSAROKA MOUNTAINS UNTIL 2 PM MST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR THE BIGHORN MOUNTAINS WEST UNTIL 2 PM MST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR THE UPPER GREEN RIVER BASIN FOOTHILLS AND WIND RIVER MOUNTAINS WEST UNTIL 2 PM MST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR JACKSON HOLE AND STAR VALLEY UNTIL 2 PM MST SATURDAY... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and tonight. Moderate to heavy snow this afternoon through the overnight hours across the Western Mountains, Jackson and Star Valleys, the Upper Green River Basin, and the northern portions of the western Bighorns. Gusty winds combined with heavy snow could cause reduced visibilities and hazardous travel. Widespread breezy to gusty winds across much of the area this afternoon, with gusts up to 30 mph across the Wind Corridor, the Absarokas, and eastern Wind River Mountains. Wind gusts of 40 to 50 mph are expected after sunset across the western mountains, the Wind Corridor, and the Wind River Basin. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Saturday...Light snow across western Wyoming and the western Bighorns. Gusty across the area. Wind gusts of 40 to 50 mph across the western mountains, northern Johnson County, the Wind River Basin, and southern Wyoming. Gusts of 60 mph are possible in wind prone locations, especially Sweetwater County. Sunday through Thursday...Multiple chances for snow across western Wyoming and widespread breezy to gusty winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. $$