Hazardous Weather Outlook
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
852 FLUS45 KRIW 061009 HWORIW Hazardous Weather Outlook National Weather Service Riverton WY 309 AM MST Sat Dec 6 2025 WYZ001>020-022>030-071415- 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- 309 AM MST Sat Dec 6 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 THIS AFTERNOON... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR YELLOWSTONE NATIONAL PARK, THE ABSAROKA MOUNTAINS, THE UPPER GREEN RIVER BASIN FOOTHILLS, THE WIND RIVER MOUNTAINS WEST, JACKSON HOLE, AND STAR VALLEY UNTIL 2 PM MST THIS AFTERNOON... ...WINTER STORM WARNING REMAINS IN EFFECT FOR THE BIGHORN MOUNTAINS WEST UNTIL 5 PM MST THIS AFTERNOON... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and tonight. Periods of moderate to heavy snowfall are possible through the late morning/early afternoon across the Western Mountains, Jackson and Star Valleys, the Upper Green River Basin, and the western Bighorns. Gusty winds combined with snow could cause reduced visibilities and hazardous travel. Wind gusts of 30 to 50 mph are expected, with isolated gusts above 60 mph possible, much of the day across the western mountains, the Wind Corridor, and the Wind River Basin. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. $$