* WHAT...Heavy rain, heavy snowfall, strong winds, and above-freezing temperatures have created very dangerous avalanche conditions.
* WHERE...The Whitefish, Swan, and Flathead Ranges, as well as the Apgar Mountains, Lake McDonald Valley, and Marias Pass areas of Glacier National Park.
* WHEN...In effect from Tue 06:00 MST to Wed 05:00 MST.
* IMPACTS...Large to very large natural avalanches are likely on mid- and upper-elevation slopes; they may involve wet snow or dense slabs of new and wind-drifted snow. These slides can run into low elevation terrain and valley bottoms, including terrain where it doesn't appear to be enough snow cover for avalanche hazards.
* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions. Travel in and below avalanche terrain is not recommended. Avalanches may run long distances and can run into mature forests, valley floors, or flat terrain.
Consult http://www.flatheadavalanche.org/ 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.
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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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