Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Anonymous
Observation Date:
April 1, 2023
Submitted:
April 1, 2023
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Guye Peak

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
Yes
Avalanche Type:
Soft Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
4800
Aspect:
SE
Comments:
The whole Guye peak east couloir slid during a belayed ski cut. Crown depth ranged from a few inches to two feet.

Signs of Unstable Snow

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

Observations

Generally a poor bond between the new and old snow. The ski cut at the top of the SE Couloir on Guye caused the entire couloir to fail, wall to wall, top to bottom and the crown followed the walls even into what we could perceive as islands of safety in the couloir.

Media

Public Field Report: Guye Peak
Public Field Report: Guye Peak

Advanced Observations

Observed Avalanche Problem #1: 
Storm Slab
Comments: 
Storm slabs were widespread and easy to trigger. Depth was variable due to wind transport but storm slabs were present on both windward and leeward slopes with a high propensity for propagation.
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