Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Josh Hirshberg
Observation Date:
February 17, 2021
Submitted:
February 17, 2021
Zone or Region:
Stevens Pass
Activity:
Skiing/Snowboarding
Location:
Skyline area

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Soft Slab
Size:
Size 3: Could bury and destroy a car, damage a truck, destroy a wood frame house, or break a few trees
Elevation:
5300
Aspect:
S
Comments:
Mt McCausland. Natural avalanche D2.5-3. Likely ran midday on 16th. Crown estimated 50-70cm deep by 400m wide. Couldn't see debris.

We saw many other debris piles ranging in age from today (sun-triggered point releases on solar to D2) back to the 13th. We couldn't make out many other defined crowns with intermittent visibility.
Photo: Will Govus
Photo:

Signs of Unstable Snow

None reported

Observations

Winds were light near treeline. Recent wind features were stubborn at 5300ft ridge. Minimal wind effect in the snow that fell overnight.
Ski pen 30-40cm. Boot pen >100cm, almost chest-deep and difficult to measure.

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