Weather Alerts For Sun Valley, ID

URGENT - WINTER WEATHER MESSAGE National Weather Service Pocatello ID 136 PM MST Thu Dec 25 2025 Sawtooth/Stanley Basin-Sun Valley Region-Big Lost Highlands/Copper Basin- Including the cities of Copper Basin, Stanley, Galena, Ketchum, and Sun Valley 136 PM MST Thu Dec 25 2025 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SATURDAY... * WHAT...Moderate to heavy snow expected. Total snow accumulations 4 to 8 inches at lower elevations, and 8 to 18 inches above 6500 ft. Winds gusting as high as 40 mph. * WHERE...Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin, and Sun Valley Region. * WHEN...From 11 PM this evening to 5 AM MST Saturday. * IMPACTS...Travel could be very difficult at times, especially near pass level. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 5 1 1 or visit 511.idaho.gov for the latest road conditions. &&

BULLETIN - IMMEDIATE BROADCAST REQUESTED BACKCOUNTRY AVALANCHE WARNING Forest Service Sawtooth Avalanche Center Ketchum ID Relayed by National Weather Service Pocatello ID 723 AM MST Thu Dec 25 2025 ...The Forest Service Sawtooth Avalanche Center in Ketchum has ISSUED an AVALANCHE WARNING which is in effect until 7 AM MST Friday... * WHAT...Avalanche Warning. The avalanche danger is HIGH. The combination of heavy snowfall and wind are overloading a weak snowpack. * WHERE...The White Cloud, Smoky, Boulder, and Pioneer Mountains, including the mountains east of Smiley Creek and near Galena Summit, Baker Creek, Trail Creek Summit, and Triumph. * WHEN...Until 7 AM MST Friday. * IMPACTS...Human-triggered avalanches large enough to bury people, snap trees, and destroy structures are very likely. Avalanches may strike roadways, trails, and buildings in the valley bottom. PRECAUTIONARY/PREPAREDNESS ACTIONS... Very dangerous avalanche conditions exist. Travel in avalanche terrain is not recommended. Stay off and out from below steep slopes, slopes steeper than about 30 degrees. Avalanches may be triggered remotely, from flat terrain above, below, and to the sides of steep slopes. Consult www.sawtoothavalanche.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.