Weather Alerts For Island Park, ID

URGENT - WINTER WEATHER MESSAGE National Weather Service Pocatello ID 1035 AM MST Mon Dec 22 2025 Bear River Range-Big Hole Mountains-Centennial Mountains - Island Park- Including the cities of Victor, Kilgore, Island Park, and Emigration Summit 1035 AM MST Mon Dec 22 2025 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow. Additional snow accumulations up to 4 inches, Mainly in the passes in areas north of Palisades Reservoir, in the Big Hole and Island Park region. Winds gusting as high as 35 mph. * WHERE...Big Hole Mountains, Centennial Mountains - Island Park, and Bear River Range. * WHEN...Until 11 PM MST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact travel. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Call 5 1 1 or visit 511.idaho.gov for the latest road conditions. &&

BULLETIN - IMMEDIATE BROADCAST REQUESTED BACKCOUNTRY AVALANCHE WARNING Gallatin National Forest Avalanche Center Bozeman MT Relayed by National Weather Service Pocatello ID 507 AM MST Mon Dec 22 2025 ...The Gallatin National Forest Avalanche Center in Bozeman has CONTINUED an AVALANCHE WARNING which is in effect until 530 AM Tuesday... * WHAT...Avalanche Warning. The avalanche danger is HIGH on all slopes. Natural and human triggered slides are very likely. * WHERE...The mountains near Island Park, West Yellowstone, and Cooke City. * WHEN...Until 530 AM Tuesday. * IMPACTS...Heavy snowfall on a snowpack with unstable weak layers will make human triggered avalanches very likely. PRECAUTIONARY/PREPAREDNESS ACTIONS... Very dangerous avalanche conditions exist. Backcountry travelers should stay off steep slopes and away from the bottom of steep slopes. Avalanches can be triggered from flat terrain. Steep slopes can avalanche far above and run into lower angled-terrain. Consult www.mtavalanche.com or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.