Conditions:

Danger Scale

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Today (2/23/19) we toured near Hebgen Lake outside West Yellowstone. Large avalanches breaking on weak sugary snow at the base of the snowpack are getting more difficult to trigger, but still possible and likely deadly. The best strategy to deal with this problem is to avoid avalanche terrain, especially during the upcoming storm which could drop up to 2 feet of snow by Wednesday. #gnfacobs #westyellowstone
Today (2/23/19) we toured near Hebgen Lake outside West Yellowstone. Large avalanches breaking on weak sugary snow at the base of the snowpack are getting more difficult to trigger, but still possible and likely deadly. The best strategy to deal with this problem is to avoid avalanche terrain, especially during the upcoming storm which could drop up to 2 feet of snow by Wednesday. #gnfacobs #westyellowstone
The new snow is bonding well to the old snow surface, but wind slabs remain a concern in the Bridgers. This problem mainly exists on the leeward side of ridgelines and cross loaded terrain features. #gnfacobs
The new snow is bonding well to the old snow surface, but wind slabs remain a concern in the Bridgers. This problem mainly exists on the leeward side of ridgelines and cross loaded terrain features. #gnfacobs

GNFAC News

King and Queen of the Ridge 2019

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.

GNFAC News and Updates
Dashboard Talks: Let's meet Ian

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

Snowmobiler Education efforts

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

New webpage dedicated to the Centennial Range in Idaho and Montana

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.