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Eastern Sierra Avalanche Center

Public Observation

Observation Details

Observation Date:
December 28, 2021
Submitted:
December 28, 2021
Zone or Region:
Mammoth Lakes
Activity:
Skiing/Snowboarding
Location:
Representative slope near Arrowhead Lake

Observations

No obvious signs of instability were observed, limited views of the crest but no visible avalanche activity, lots of settlement cones/rings on the trees. The snow felt like it had very mild diurnal recrystallization in the trees. I used satellite imagery to try and find old-faceted snow, but the snowpack was too deep to access the bottom with the time I had. The deepest CT was performed similar to a Deep Tap Test, however as hasty as it was, I would consider it a CT. Both RP fractures required an additional loading step to achieve a planar surface.

Signs of Unstable Snow

None reported

Media

Snow Pit
Initial digging with 260cm probe at ground
Signs of settlement on the way up
Snow Pilot Graph
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