Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Andrew
Observation Date:
December 9, 2021
Submitted:
December 9, 2021
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Upper international

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
No
Avalanche Type:
Soft Slab
Size:
Size 1: Relatively harmless to people
Elevation:
5000
Aspect:
N
Comments:
Small remote trigger on an unsupported steep slope while skinning up upper international

Signs of Unstable Snow

None reported

Observations

Saw small shooting cracks on Lower international. At the top of our skin track on upper international we got a 20 ft long shooting crack that remote triggered a small slide below us on a slope that ended in a small cliff.

It also appeared that there had been a natural cycle earlier in the storm with some soft debris covered by several inches of new and a mostly covered fracture line on the side of the bowl.

Snow was about 3 feet deep with a supportive crust just before the ground and then largely in consolidated above that.

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