Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Adam Butterfield
Observation Date:
February 4, 2021
Submitted:
February 4, 2021
Zone or Region:
Stevens Pass
Activity:
Skiing/Snowboarding
Location:
Skyline ridge

Signs of Unstable Snow

Did you see shooting cracks? 
Yes, Isolated
Did you experience collapsing or whumpfing? 
No

Observations

Isolated wind slabs on both east and westerly aspects.

Did a few stability tests in the north side. Found surface hoar (4mm) above the 1/14 crust (~50cm down) which produced SP results and an ECTN 18. We also found rounding facets mixed with 3mm polycrystals below the crust with an ECTP 29 score.

Media

Wind feature on the south side of skyline. We hopped on this same feature 2 days prior with no results.
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