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The new snow and gusty winds over the weekend created dangerous avalanche conditions. A splitboarder triggered an avalanche on Lionhead Ridge near ...
We toured into Lionhead Ridge for the first time of the season on Sunday, December 3. Human-triggered avalanches are likely where wind drifted the ...
Since snowfall began on Friday the mountains received 12-14” of low density snow near Cooke City, Big Sky, West Yellowstone and Island Park, and ...
Avalanche Conditions Update: December 1, 2023
More information at: www.mtavalanche.com/forecast
It is finally snowing! By the end of the weekend, ...
Resources
Weather Stations
Weather Stations provide the GNFAC forecasters with information on snowfall, wind and temps from around the region. The Weather Log summarizes this daily.
Avalanche Education
GNFAC partners with groups around the region to provide evening avalanche classes, plus full day and multi-day courses, including some weekend field days. All our class offerings, along with courses from other providers, are on our Education Calendar.
Placenames
Use this map to find the locations of unfamiliar places mentioned in the advisory. Also take a look at our glossary of avalanche terms.
Support
Donate to the Friends of GNFAC; or order DVDs or 'Snow Sense' avalanche safety handbook.