An avalanche warning has been issued for the southern Mission, southern Swan, Rattlesnake, and southern and central Bitterroot mountains. The avalanche danger for the west central Montana backcountry is HIGH. The avalanche hazard is increasing with continued snowfall, rising temperatures, and wind. Human triggered avalanches are certain. Avalanches may run long distances. Travel in avalanche terrain is not recommended. This avalanche warning is valid for 24 hours. The avalanche warning will either be extended or terminated at 7:00 pm on February 06, 2021.
Weather and Snowpack
Strong winds and new snow are creating dangerous avalanche conditions. Today in the southern Missions, we found 20 new inches of snow and saw active transport of snow to leeward aspects. New snow is testing the weak layers in the snowpack. We were able to remotely trigger slides at Gash Point in the central Bitterroot on multiple aspects on buried weak layers. We had shooting cracks and propagations at Lolo Pass. These are all signs to stay away avalanche terrain.
Avoid traveling in avalanche terrain today. Avoid being under run out zones. Expect the avalanche danger to continue to be elevated as more snow and wind continue till Monday.
The Bottom Line
Travel in avalanche terrain is not recommended. Avoid runout zones. You can trigger an avalanche remotely from the side, below or above you.
This warning will be terminated or extended tomorrow at 7:00 pm.
Ski and ride safe.