Danger Scale

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February 15, 2019. This large avalanche broke this afternoon as strong wind drifted new snow that fell the past week. We saw widespread blowing snow and small drifts that cracked and avalanched which indicate decreasing stability. Fresh drifts 1-2’ deep are easy to trigger this weekend, and could break deep and wide on old buried weak layers. Fortunately these deep weak layers are not widespread near Cooke, but we should avoid steep wind loaded slopes while the snowpack is tested by this storm. #gnfacobs #cookecity
February 15, 2019. This large avalanche broke this afternoon as strong wind drifted new snow that fell the past week. We saw widespread blowing snow and small drifts that cracked and avalanched which indicate decreasing stability. Fresh drifts 1-2’ deep are easy to trigger this weekend, and could break deep and wide on old buried weak layers. Fortunately these deep weak layers are not widespread near Cooke, but we should avoid steep wind loaded slopes while the snowpack is tested by this storm. #gnfacobs #cookecity
The avalanche warning will continue for the Centennial Range. Heavy snow and strong winds are creating very unstable conditions. Avalanche terrain and avalanche run out zones should be avoided.
The avalanche warning will continue for the Centennial Range. Heavy snow and strong winds are creating very unstable conditions. Avalanche terrain and avalanche run out zones should be avoided.

GNFAC News

Fund-Raiser for the Friends of GNFAC. Support avalanche awareness, education and information throughout southwest Montana. Tickets and info.

May 3-4th, Give Big online fundraising campaign! This is our one-and-only financial appeal to our users.

Sledders, mark your calendar for May 19, the 2nd Annual Sled Fest in Cooke City. It’s a fundraiser for the Friends of the Avalanche Center and there will be a DJ, raffle prizes and BBQ on the mountain.

Alex Marienthal and Doug Chabot provide a few thoughts about why you should read the daily advisory. As the season wears on, don't get "Advisory Fatigue." There is a lot of winter still to come!

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.