Bozeman, MT – Backcountry recreationists in southwest Montana are urged to stay off steep terrain today after officials issued an avalanche warning for areas near West Yellowstone, citing highly unstable snow conditions and an elevated risk of deadly slides.
According to the Gallatin National Forest Avalanche Center, a Backcountry Avalanche Warning was issued at 5:30 a.m. Thursday for the Lionhead area near West Yellowstone, where avalanche danger is rated HIGH. The warning remains in effect until 5:30 a.m. Friday.
Officials say heavy snowfall over the past five days combined with strong winds has overloaded many slopes, creating conditions where avalanches can be easily triggered by people. In some cases, slides could break down to weak layers near the ground, burying a person six feet deep or more.
The National Weather Service office in Great Falls relayed the alert, emphasizing that very dangerous avalanche conditions currently exist. Travelers are strongly advised to avoid being on or underneath any slope steeper than 30 degrees, as natural and human-triggered avalanches are likely.
The warning applies to backcountry terrain within the Gallatin National Forest Avalanche Center’s coverage area, though similar dangerous conditions may exist outside the official boundary. Officials stress that even experienced backcountry users face significant risk under the current snowpack structure.
Anyone planning winter recreation such as snowmobiling, skiing, or snowshoeing in the region is encouraged to reconsider plans or stick to low-angle terrain well away from avalanche paths.
For the latest avalanche forecasts, maps, and safety guidance, visit mtavalanche.com or avalanche.org. The avalanche hotline is available at 406-587-6981.
This warning is expected to be updated by 6 a.m. Friday.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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