Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Stephen Heath
Observation Date:
February 4, 2022
Submitted:
February 4, 2022
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Snow lake divide

Signs of Unstable Snow

None reported

Observations

Toured up to the Snow Lake divide, found a thin breakable crust all the way up with thicker crust on southern aspects.
No visible signs of instability but tests revealed a highly reactive layer.
Quick hand pit on the apron above source broke clean when cutting the back.
We then did 2 compression tests and one ECT on the divide. These revealed a highly reactive layer 46cm down.
4500ft NE Aspect snow lake divide.
50-55cmof snow on top of juneuary crust
50cm boot pen
2mm surface crust
Density:
P-1
F 2-29cm⬇️
4F 30cm-39cm⬇️
F 40-43cm⬇️
P (crust of the Facet crust sandwich)44Cm
1F (sugary facets)45-46cm
Juneuary crust 47cm ⬇️

CTM3 planar 46cm⬇️ on sugary facets
CTE4 planar same layer
ECTP11 planar 46cm⬇️
All tests broke clean and popped of the column

Media

Thicker surface crust on souther aspect 4400ft
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