Winter Weather Advisory issued December 29 at 1:47AM MST until December 30 at 5:00AM MST by NWS Pocatello ID
* WHAT...Several rounds of snow, mixing with rain at times. Additional snow accumulations of 1 to 2 inches in the southern Wood River Valley including Hailey and Bellevue, and 3 to 7 inches across the rest of the area. Winds gusting as high as 35 MPH. * WHERE...Big Lost Highlands/Copper Basin, Frank Church Wilderness, Lost River Range, and Wood River Foothills. * WHEN...Until 5 AM MST Monday. * IMPACTS...Prepare for periods of slick road conditions, reduced visibility, and localized pockets of blowing and drifting snow. Travel could be difficult at times.
Winter Storm Warning issued December 29 at 1:47AM MST until December 30 at 5:00AM MST by NWS Pocatello ID
* WHAT...Several rounds of snow, moderate to heavy at times. Additional snow accumulations of 3 to 7 inches in the valleys including Stanley and Ketchum, and 10 to 20 inches from pass level into the backcountry including Galena and Banner Summits. Winds gusting as high as 35 MPH. * WHERE...Sawtooth/Stanley Basin and Sun Valley Region. * WHEN...Until 5 AM MST Monday. * IMPACTS...Prepare for slick road conditions, reduced visibility, and localized pockets of blowing and drifting snow. Travel could be very difficult to impossible at times.
Avalanche Warning issued December 28 at 8:05AM MST by NWS Pocatello ID
AVWPIH * WHAT...Avalanche warning. The avalanche danger is HIGH in the backcountry due to significant snow falling on a weak snowpack. * WHERE...The Palisades, Elk Mountains, and Big Holes of Southeast Idaho. * WHEN...6 PM Saturday to 6 PM Sunday. * IMPACTS...Recent heavy snow combined with wind will likely create widespread areas of unstable snow. Human-triggered avalanches large enough to bury people are very likely to occur on most aspects and elevations in the backcountry.
Avalanche Warning issued December 28 at 6:23AM MST by NWS Pocatello ID
AVWPIH * WHAT...Avalanche warning. The avalanche danger for the warning area is HIGH today and possible EXTREME tonight. * WHERE...Bear River Range in southeast Idaho. * WHEN...Until 6 AM MST Sunday. * IMPACTS...Heavy snow combined with strong wind is creating widespread areas of unstable snow. Both human-triggered and natural avalanches are likely.
Winter Storm Warning issued December 28 at 2:05AM MST until December 30 at 3:00PM MST by NWS Pocatello ID
* WHAT...Several rounds of moderate to heavy snow. Additional snow accumulations of 5 to 15 inches below pass level, and 15 to 25 inches above pass level especially in the backcountry of the Big Hole Mountains and Bear River Range. Winds gusting as high as 40 MPH. Periods of blowing and drifting snow are likely. * WHERE...Big Hole Mountains, Centennial Mountains - Island Park, Bear River Range, and Caribou Range. * WHEN...Until 3 PM MST Monday. * IMPACTS...Prepare for slick road conditions and reduced visibility. Travel could be very difficult to impossible at times.
Winter Weather Advisory issued December 28 at 2:05AM MST until December 30 at 3:00PM MST by NWS Pocatello ID
* WHAT...Several rounds of moderate to heavy snow. Additional snow accumulations of 3 to 7 inches in the valleys except 4 to 8 inches in the Teton Valley, with locally higher amounts of over 10 inches in the higher elevations above pass level. Winds gusting as high as 45 MPH. Periods of blowing and drifting snow are likely. * WHERE...Teton Valley, Bear Lake Valley, Blackfoot Mountains, Franklin/Eastern Oneida Region, Marsh and Arbon Highlands, Raft River Region, and Southern Hills/Albion Mountains. * WHEN...Until 3 PM MST Monday. * IMPACTS...Prepare for slick road conditions and reduced visibility. Travel could be difficult at
Avalanche Warning issued December 27 at 6:07AM MST by NWS Pocatello ID
AVWPIH * WHAT...Avalanche warning. Heavy snowfall and drifting by strong winds will elevate the backcountry avalanche danger over the next several days. Very dangerous conditions and HIGH avalanche danger are expected to develop in many areas. * WHERE...Bear River Range in southeast Idaho. * WHEN...Until 6 AM MST Saturday. * 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. .
Avalanche Watch issued December 27 at 5:15AM MST by NWS Pocatello ID
AVAPIH * WHAT...Avalanche watch. The avalanche danger is expected to rise to HIGH by Sunday. * WHERE...The Centennial Mountains near Island Park. * WHEN...Until 5 AM MST Saturday. * IMPACTS...Heavy snowfall is expected to overload pre-existing weaknesses in the snowpack and create very dangerous avalanche conditions.
Winter Weather Advisory issued December 27 at 3:02AM MST until December 27 at 5:00PM MST by NWS Pocatello ID
* WHAT...Snow. Additional snow accumulations up to 5 inches. Widespread wind gusts to 35 mph with localized stronger gusts. * WHERE...Bear Lake Valley. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning and evening commutes.
Winter Storm Warning issued December 27 at 3:02AM MST until December 27 at 5:00PM MST by NWS Pocatello ID
* WHAT...Moderate to heavy snow and strong winds. Additional snow accumulations between 3 and 10 inches with a foot or more along the highest peaks. Breezy sustained winds and gusts 30 to 40 mph with stronger gusts to around 55 mph expected in the South Hills/Albion Mountains and Raft River Region. * 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