* WHAT...Dangerous avalanche conditions exist in the wake of rain, heavy snowfall, and gale force winds.
* WHERE...All elevations of the Whitefish, Apgar, Swan, and Flathead mountain ranges, and portions of Glacier National Park (the McDonald Valley and peaks near Marias Pass).
* WHEN...In effect from Mon 06:00 MST to Tue 06:00 MST.
* IMPACTS...Triggered wet snow avalanches are likely below about 6000 feet. Above that elevation, large to very large natural and triggered avalanches are likely; these could involve 1 to 2 feet of new and drifted snow or break deeper in the snowpack, on buried weak layers. Avalanches may run long distances, into lower-angled terrain, valley floors, and snowmobile trails. Small slopes like roadcuts and snow-covered roofs may be hazardous.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Widespread and complex avalanche hazards. Travel in avalanche terrain is not recommended.
Consult http://www.flatheadavalanche.org/ or http://www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.
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Check out our online trail guides:
- Glacier National Park: HikinginGlacier.com
- Grand Teton National Park: TetonHikingTrails.com
- Rocky Mountain National Park: RockyMountainHikingTrails.com
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