Avalanche Watch issued December 26 at 6:10AM MST by NWS Pocatello ID
AVAPIH * WHAT...Avalanche watch. The avalanche danger is HIGH. Heavy snowfall and drifting by strong winds will elevate backcountry avalanche danger over the next several days. * WHERE...Bear River Range in southeast Idaho. * WHEN...Until 6 AM MST Friday. * IMPACTS...Very dangerous avalanche conditions are expected to develop on many slopes. Avalanches can be triggered on slopes steeper than 30 degrees. Avalanches could be triggered remotely (from a distance) or from below.
Winter Weather Advisory issued December 26 at 3:14AM MST until December 27 at 5:00PM MST by NWS Pocatello ID
* WHAT...Snow expected. Total snow accumulations between 5 and 12 inches. Wind gusts as high as 35 mph. * WHERE...Frank Church Wilderness, Lost River Range, and Beaverhead - Lemhi Highlands. * WHEN...Until 5 PM MST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes.
Winter Storm Warning issued December 26 at 3:14AM MST until December 27 at 5:00PM MST by NWS Pocatello ID
* WHAT...Heavy snow expected. Total snow accumulations between 8 and 18 inches with the highest elevations receiving over two feet. Wind gusts as high as 35 mph. * WHERE...Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin, Sun Valley Region, Wood River Foothills, Big Hole Mountains, Centennial Mountains - Island Park, Teton Valley, Bear River Range, Blackfoot Mountains, Caribou Range, Franklin/Eastern Oneida Region, Marsh and Arbon Highlands, Raft River Region, and Southern Hills/Albion Mountains. * WHEN...Until 5 PM MST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions
Avalanche Watch issued December 26 at 9:34AM MST by NWS Pocatello ID
AVAPIH * WHAT...Avalanche watch. The avalanche danger is expected to rise to HIGH by Friday. * WHERE...The Centennial Mountains near Island Park. * WHEN...Today 10 AM through Friday 5 AM. * IMPACTS...Heavy snowfall is expected to overload pre-existing weaknesses in the snowpack and create very dangerous avalanche conditions.
Winter Storm Watch issued December 25 at 2:33AM MST until December 27 at 5:00PM MST by NWS Pocatello ID
* WHAT...Heavy snow possible. Total snow accumulations between 8 and 16 inches with the highest elevations expected to receive closer to two feet. * WHERE...Big Hole Mountains, Centennial Mountains - Island Park, Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot Mountains, Caribou Range, Franklin/Eastern Oneida Region, Marsh and Arbon Highlands, Raft River Region, and Southern Hills/Albion Mountains. * WHEN...From late tonight through Friday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Thursday morning and evening commutes.
Dense Fog Advisory issued December 24 at 10:47AM MST until December 24 at 11:00AM MST by NWS Pocatello ID
Expect visibility to continue to improve through the afternoon.
Freezing Fog Advisory issued December 19 at 6:01AM MST until December 19 at 12:00PM MST by NWS Pocatello ID
* WHAT...Visibility less than one mile in freezing fog. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...Until noon MST today. * IMPACTS...Low visibility could make driving conditions hazardous.
Winter Weather Advisory issued December 17 at 2:12AM MST until December 17 at 11:00AM MST by NWS Pocatello ID
* WHAT...Snow. Additional snow accumulations up to 5 inches. * WHERE...Big Hole Mountains, Centennial Mountains - Island Park, Teton Valley, Bear River Range, Blackfoot Mountains, Caribou Range, and Marsh and Arbon Highlands. * WHEN...Until 11 AM MST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute.
Winter Weather Advisory issued December 16 at 5:15AM MST until December 17 at 11:00AM MST by NWS Pocatello ID
* WHAT...Snow. Accumulations between 4 and 8 inches below 7 thousand feet with accumulations between 6 and 10 inches above 7 thousand feet. * WHERE...Sawtooth/Stanley Basin, Sun Valley Region, and Wood River Foothills. * WHEN...Until 11 AM MST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes.
Avalanche Warning issued December 14 at 6:49AM MST by NWS Pocatello ID
AVWPIH * WHAT...Avalanche warning. The avalanche danger is HIGH. Very dangerous avalanche conditions exist. * WHERE...The White Cloud, Smoky, Boulder, Pioneer, and Soldier Mountains, including the mountains surrounding Smiley Creek, Atlanta, Galena Summit, Trail Creek Summit, and Fairfield. The backcountry avalanche warning does not apply to highway avalanche programs or operating ski areas. * WHEN...In effect Sat 7 AM MST to SUN 6 AM MST. * IMPACTS...An intense storm bringing heavy snow and strong winds will overload a very weak snowpack. Natural and human-triggered avalanches large enough to bury people are almost certain to occur. Some avalanches will be large