Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Stephen Heath
Observation Date:
February 13, 2021
Submitted:
February 13, 2021
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Kendal knob

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
No
Avalanche Type:
Soft Slab
Size:
Size 1: Relatively harmless to people
Elevation:
4800ft
Aspect:
NW
Comments:
Kendal knob NW aspect 4800ft Multiple skier triggered D1 soft slab releases on small convexities Multiple natural D1 soft slab slides on south aspect Kendal knob 3500 ft and up. All slabs failed on 2/12 interface.
Photo:

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Soft Slab
Size:
Size 1: Relatively harmless to people
Elevation:
Aspect:
S
Comments:
Kendal knob S aspect 3500 ft and up. Natural releases

Signs of Unstable Snow

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

Observations

Kendal knob NW aspect 4800ft
Multiple skier triggered D1 soft slab releases on small convexities
Multiple natural D1 soft slab slides on south aspect Kendal knob 3500 ft and up.
All slabs failed on 2/12 interface.

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