Avalanche Forecast published on November 26, 2016 @ 7:24 am
Issued by
Mark Dundas - Flathead National Forest
Whitefish Range
Swan Range
Flathead Range and Glacier National Park
How to read the forecast
Recent snow combined with wind continues to load upper elevation leeward aspects. Look for obvious signs of instability such as shooting cracks, whumpfing or hollow sounds. Due to the lack of early season observations carefully evaluate all slopes before recreating on any slope. Remember that if there is enough snow to ski or ride, then there is enough snow to avalanche. We will continue to update information without hazard ratings as conditions warrant until we receive/collect more snowpack data.
No Rating
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Above 6500 ft.
No Rating
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5000-6500 ft.
No Rating
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3500-5000 ft.
Forecast discussion
Over the past 7 days upper elevation weather stations are reporting an additional settled snow depth of 7-14 inches. Current snow pack depths range from 21 inches at Noisy Basin to 41 inches at Stahl Peak. Wind speeds in that period were light to moderate which has drifted the new snow and likely formed thin slabs along leeward ridge lines. Given the early season conditions, these wind-loaded areas will be the most filled in and the most attractive slopes to play on. Unfortunately, these are also the slopes most likely to slide.
Remember, avalanches can happen any time of the year. The effect of small avalanches can be amplified by thin snow cover, exposed hazards, and narrow gullies. If there is enough snow to ski or ride, it's deep enough to slide.
Before heading out in the backcountry it is important to check your gear that has been stored all summer. Look for any damage to shovels and probes that you neglected to repair/replace in the warm weather. Dont forget the fresh batteries for your beacon and practice using it with your partner. Finally, start to think snow/snowpack. A great way to dust off the cob webs is to join us for one of our upcoming avalanche awareness presentations. See upcoming events here.
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Join the Friends of the Flathead Avalanche Center (FOFAC) and The Patrol Fund for a fundraiser for avalanche education. It's an 80s-themed party with a costume contest, raffle prizes (including skis), and a ton of fun.
Doors open at 8:00 pm.
recent observations
On Thanksgiving Day (11/24) skiers in the northern Whitefish Range reported that above 6000 feet there was a thin but skiable "right side up" snowpack. Moderate to strong winds were transporting snow onto typical (easterly) leeward aspects throughout their tour. No other signs of instability were noted.
Weather and CURRENT CONDITIONS
weather summary
A pleasant day with above normal temperatures is expected for today (Saturday). As of 0600 temperatures at upper elevation weather stations range from the mid-20's to low 30's with light winds accompanied by moderate gusts. New snow totals over the past 24 hours range from 1-5 inches. Cooler temperatures with light snowfall return to our area Sunday with the possibility of a stronger system impacting our area Monday into Tuesday.
Disclaimer
This advisory applies only to backcountry areas outside established ski area boundaries. This advisory describes general avalanche conditions and local variations always occur. This advisory expires at midnight on the posted day unless otherwise noted. The information in this advisory is provided by the USDA Forest Service who is solely responsible for its content.
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