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Gallatin National Forest Avalanche Center

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Conditions:

  • Bridgers
  • Gallatin - N
  • Madison - N
  • Madison - S
  • Gallatin - S
  • Lionhead
  • Cooke City
Danger Scale

Avalanche Education Calendar

GNFAC classes in Red; Private-sector classes are in Blue

  • Submit Snow Observation
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GNFAC Instagram

In Cooke City, around 10" of new snow are loading two weak layers on some slopes, one weak layer on others, and a stable snowpack elsewhere. Assume ...
We skied into Mount Blackmore and hunted for the recently buried layer of surface hoar. We came up empty-handed, but were skeptical. It was found in ...
Avalanche danger rises today due to new snow adding weight to buried weak layers. For all the details #GetTheForecast at ...
Avalanche danger rises today due to new snow adding weight to buried weak layers. For all the details #GetTheForecast at ...
We went hunting for a newly buried weak layer of feathery surface hoar in Cooke City. We found it buried under 6" to 1.5' of snow. It has produced ...

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.

  • Map of GNFAC area placenames
  • Avalanche Danger Rating Scale, explained
  • iOS app and Android app

Welcome to the Gallatin National Forest Avalanche Center (GNFAC) web site. This site is brought to you by the Friends of the GNFAC, a non-profit supporting avalanche awareness and education through a partnership with the GNFAC.

Based in Bozeman, Montana, the GNFAC covers an area of approximately 1,720 mi2, including the Bridger, Gallatin, and Madison Ranges, the Lionhead area near West Yellowstone, and the mountains around Cooke City.

Contact the Avalanche Center
Copyright © 2019 Friends of the Gallatin National Forest Avalanche Center
Advisory: 406-587-6981 | Sitemap
Friends of GNFAC: P.O. Box 6799, Bozeman, MT 59771
501(c)(3) Nonprofit Tax ID: #36-3944120