THIS AVALANCHE FORECAST EXPIRED ON March 18, 2018 @ 11:57 pm
Avalanche Forecast published on March 18, 2018 @ 6:57 am
Issued by Mark Dundas - Flathead National Forest

Whitefish Range
Swan Range
Flathead Range and Glacier National Park

How to read the forecast

Today's cooler cloudy weather will contribute to generally stable conditions. Continue to practice safe travel protocols of one at a time on a slope. Evaluate all consequential terrain before committing to a slope. 

1. Low

?

Above 6500 ft.
Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.

1. Low

?

5000-6500 ft.
Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.

1. Low

?

3500-5000 ft.
Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
    Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
  • 1. Low
  • 2. Moderate
  • 3. Considerable
  • 4. High
  • 5. Extreme
Forecast discussion

Today's cool and cloudy weather will put a lid on our recent shallow wet avalanche cycle. Observations noted wet loose activity in central Glacier Park and Rescue Creek Friday and Saturday (observation 1, observation 2). The activity involved new snow that fell Thursday night sliding on a sun crust formed earlier in the week. Resulting debris piles were generally small D1 - 1.5. A storm slab cycle occurred in central Glacier Park on Friday (observation 1). Slides were small, D1 - 1.5, and consisted of fresh thin slabs sliding on a sun crust. Observations from Snowshed Mountain, Rescue Creek, and the Running Rabbit traverse all mentioned no evidence of storm slabs. The combination of dense snow and warm air temperatures contributed to the healing of this instability. Long story short, we are not listing an avalanche problem today. This does not mean that you can't trigger an avalanche! Evaluate all steep slopes that you intend to ride and continue to practice safe travel protocols. Snow returns tonight into tomorrow which will increase the avalanche hazard.

 

 

 

Weather and CURRENT CONDITIONS
weather summary

Cool and cloudy weather with very light snowfall is expected today. A system drops southward out of Alberta tonight into tomorrow with cool temperatures and light to moderate snow.

Two-Day Mountain Weather Forecast Produced in partnership with the Missoula NWS
For 5000 ft. to 7000 ft.
Sunday Sunday Night Monday
Cloud Cover: Light snow developing Light snow Continued light snow
Temperatures: 35 to 40 deg. F. 20 to 25 deg. F. 35 to 40 deg. F.
Wind Direction: N SW SW
Wind Speed: 0 to 5 mph 0 to 5 mph 5 to 10 mph
Snowfall: 0 to 2 in. 2 to 4 in. 2 to 4 in.
Snow Line:
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.