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Forecast for the Salt Lake Area Mountains

Nikki Champion
Issued by Nikki Champion on
Sunday morning, March 1, 2020
This morning the overall avalanche danger is currently LOW and will be rising to MODERATE at mid and upper elevations as the storm develops. Today's new snow may produce soft slab avalanches or long-running sluffs. Additionally, the westerly winds may create unstable slabs of wind-drifted snow at upper elevations.
Evaluate snow and terrain carefully, and pay attention to changing weather patterns.
Low
Moderate
Considerable
High
Extreme
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Weather and Snow
This morning, mountain temperatures are in the low 30s F at trailheads and low 20s F at ridgelines. Winds are currently southwesterly and averaging 15-25 mph with mid-elevation gusts of 30-35 mph and upper elevations gusts near 50 mph. Snow has lightly begun to fall, with no real accumulation thus far.
Today, a cold front will cross the area this morning with snowfall filling in behind the front. This will bring mountain temperatures in the upper 20s F and low 30s F, snowfall throughout the day, heavy at times, and westerly winds averaging 10-20 mph with gusts up to 25 mph at mid-elevations, and gusts up to 45 mph at upper-elevations.
The strongest snowfall will come mid-morning into the early afternoon and storm totals could be 6-12 inches of snow and up to 1.0 inch of water.
Looking across the state, the snowpack is generally near or slightly above normal for snow water equivalent. For the full map of basins across the western U.S. go HERE.
Recent Avalanches
No new avalanches reported in the backcountry.

Our Week in Review - where we highlight snow and avalanche activity from the past week - is available HERE.
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Avalanche Problem #1
New Snow
Type
Location
Likelihood
Size
Description
Light snow has begun to fall on an array of snow surfaces in the backcountry. These surfaces vary from stout supportable crusts to dry recrystallized snow sitting atop the February 7th crust. As snowfall rates increase the new snow is going to have a variety of both bed surfaces and weak layers to slide on, and I expect to see shallow avalanches in the backcountry today.
North-facing areas previously protected from the wind and sun will be most suspect as I would expect the new snow to bond poorly, and shallow soft slabs to form in these zones, But, with so many supportable bed surfaces, fast running sluffs are also likely today, especially in the upper elevations. Watch for obvious signs of instability such as cracking and sluffing.
Pay attention to the changing weather and increased snowfall rates, if the snowfall rates increase the sensitivity of the new snow will increase as well.
Avalanche Problem #2
Wind Drifted Snow
Type
Location
Likelihood
Size
Description
The elevated westerly winds may create fresh wind drifts at the upper elevations, primarily on aspects facing East, but with elevated winds, cross-loading is possible on any aspect.
Look for obvious signs of wind-drifted snow, such as pillow-shaped slopes, cracking and whumpfing, and avoid those slopes.
Additional Information
The stability of the snow will be heavily dependent on how well it bonds to the variety of snow surfaces currently in the backcountry.
Here is Drew talking about the variety of snow surfaces in the backcountry, before today's storm.
General Announcements
This information does not apply to developed ski areas or highways where avalanche control is normally done. This forecast is from the U.S.D.A. Forest Service, which is solely responsible for its content. This forecast describes general avalanche conditions and local variations always occur.