Conditions:

Danger Scale

GNFAC classes in Red; other groups classes in Blue

GNFAC News

Annual Report: 2019-20

Our Annual Report for 2019-20 is available here.

19-20 Snowpack Summary

Spring is here! Review this season's snowpack and avalanche activity in this brief summary.

Bozeman Splitfest Feb 27- Mar 1

More info here. Raffle proceeds benefit the Friends of the Avalanche Center.

Mid-season snowpack summary

See the mid-season summary from January for a look at the evolution of the season's snowpack.

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.

GNFAC Instagram

<p>The mountains could get 8-12" of snow tonight. If you head out the next few days remember avalanches are still possible, and any new snow could slide easily. Be cautious of travel in steep snowy ...</p>

The mountains could get 8-12" of snow tonight. If you head out the next few days remember avalanches are still possible, and any new snow could slide easily. Be cautious of travel in steep snowy ...

<p>Last weekend skiers triggered an 8" deep wet slab in Middle Basin (pictured 📸), and two days ago a very large wet slab ran naturally at the Yellowstone Club. Details and photos at: ...</p>

Last weekend skiers triggered an 8" deep wet slab in Middle Basin (pictured 📸), and two days ago a very large wet slab ran naturally at the Yellowstone Club. Details and photos at: ...

<p>Yesterday afternoon (May 19th) a very large wet slab slid naturally at the Yellowstone Club. It was 6-8 feet deep and hundreds of feet wide. The YC ski patrol director mentioned it is the largest ...</p>

Yesterday afternoon (May 19th) a very large wet slab slid naturally at the Yellowstone Club. It was 6-8 feet deep and hundreds of feet wide. The YC ski patrol director mentioned it is the largest ...

<p>Thank you to all who gave big yesterday during Give Big GV! We raised almost $5k for avalanche education and outreach. Gallatin Valley non-profits (195 participated in #givebiggv2020) were given ...</p>

Thank you to all who gave big yesterday during Give Big GV! We raised almost $5k for avalanche education and outreach. Gallatin Valley non-profits (195 participated in #givebiggv2020) were given ...