Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Observation Date:
December 17, 2020
Submitted:
December 17, 2020
Zone or Region:
West South
Activity:
Skiing/Snowboarding
Location:
Crystal E peak Cement Basin

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Hard Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
Ridge top
Aspect:
E
Comments:
Large remote trigger cornice collapse along the E aspect ridge line of East peak into cement basin.
Photo:

Signs of Unstable Snow

Did you see shooting cracks? 
Yes, Widespread
Did you experience collapsing or whumpfing? 
Yes, Isolated

Observations

Heavy wind loading occurring all day the cornice collapse was natural and propagated ~100 feet

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