Weather Alerts For Lost River, ID

URGENT - WINTER WEATHER MESSAGE National Weather Service Pocatello ID 1257 PM MST Tue Dec 23 2025 Beaverhead - Lemhi Highlands-Lost River Valley-Challis/Pahsimeroi Valleys- Including the cities of Edie School, Mackay, Chilly, Challis, Howe, Small, Spencer, Arco, and Dubois 1257 PM MST Tue Dec 23 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 AM WEDNESDAY TO 5 PM MST THURSDAY... * WHAT...Snow expected. Total snow accumulations up to 6 inches with accumulations of 1 inch or more above 7000 feet elevation. Winds gusting as high as 35 mph. * WHERE...Challis/Pahsimeroi Valleys, Lost River Valley, and Beaverhead - Lemhi Highlands. * WHEN...From 11 AM Wednesday to 5 PM MST Thursday. * IMPACTS...Travel could be very difficult if headed above 7000 feet elevation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Call 5 1 1 or visit 511.idaho.gov for the latest road conditions. &&