Danger Scale

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By 10am this morning (Fri 4/19) temperatures reached 50F under clear skies ☀️ up to 9,000’, and the snowpack did not freeze last night. Widespread natural wet avalanches occurred throughout the day, which involved recent new snow and many were large enough to bury a person. 
Above freezing temperatures tonight will keep the snowpack unfrozen and weak. Clouds and cooler temps tomorrow should minimize natural avalanche activity, but large wet slides will remain easy to trigger if the snowpack does not freeze. Be cautious of travel on and underneath steep slopes. More info at https://www.mtavalanche.com/forecast #gnfacobs #wetsnow #springobs
By 10am this morning (Fri 4/19) temperatures reached 50F under clear skies ☀️ up to 9,000’, and the snowpack did not freeze last night. Widespread natural wet avalanches occurred throughout the day, which involved recent new snow and many were large enough to bury a person. Above freezing temperatures tonight will keep the snowpack unfrozen and weak. Clouds and cooler temps tomorrow should minimize natural avalanche activity, but large wet slides will remain easy to trigger if the snowpack does not freeze. Be cautious of travel on and underneath steep slopes. More info at https://www.mtavalanche.com/forecast #gnfacobs #wetsnow #springobs
Warm temperatures and sunshine caused natural wet avalanches yesterday. Today will be similar, and without a freeze overnight wet slides might occur earlier and be larger. See today's snowpack and weather update for more details: https://www.mtavalanche.com/forecast/19/04/19
Warm temperatures and sunshine caused natural wet avalanches yesterday. Today will be similar, and without a freeze overnight wet slides might occur earlier and be larger. See today's snowpack and weather update for more details: https://www.mtavalanche.com/forecast/19/04/19

GNFAC News

February 2, King and Queen of the Ridge at Bridger Bowl (fundraiser). Register with Bridger to hike in the event, and create a pledge page to raise funds with your Ridge laps.

Check out the latest updates from the GNFAC: a new forecaster, and new and updated pages to the website.

Doug wrote an article for the upcoming Avalanche Review about our education efforts in Cooke City and the the Centennials (ID and MT).

After last season's two snowmobiler avalanche fatalities on Reas Peak in the Centennial Range we created a webpage so riders could get good, relevant information regarding snowpack and avalanches.

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.