Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Brooks Broom
Observation Date:
February 24, 2023
Submitted:
February 24, 2023
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Chair Peak Circumnavigation

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
Yes
Avalanche Type:
Hard Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
5250
Aspect:
W
Comments:
Sympathetic release of multiple wind slabs in wide pocketed, wind drifted areas, on convex roll. Skiing from bryant col to malekwa lakes. Larger of two crowns: 30’ wide, 6-24” in depth.

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Hard Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
Aspect:
Comments:
We observed several natural, and many skier triggered wind slab avalanches on all aspects, NATL.

Signs of Unstable Snow

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

Observations

Wind affect was widespread, on all aspects near and above treeline. It was very easy to trigger on any convex roll.

Media

Public Field Report: Chair Peak Circumnavigation
Public Field Report: Chair Peak Circumnavigation
Public Field Report: Chair Peak Circumnavigation
Public Field Report: Chair Peak Circumnavigation
Public Field Report: Chair Peak Circumnavigation
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