Observation: Avalanche Professional
Basic Information
Observation Details
Observation Date:
December 11, 2021Submitted:
December 11, 2021Observer:
Avalanche Professional - Vetta Mountain GuidesZone or Region:
Snoqualmie PassLocation:
Cabin Creek/Mt Amabilis (W, SW, S, 2400-3200ft)Signs of Unstable Snow
Recent Avalanches?
YesCracking?
None ExperiencedCollapsing?
None ExperiencedMedia/Attachments
Advanced Information
Weather Summary
Cloud Cover:
OvercastTemperature:
32°FWind:
CalmNew/Recent Snowfall:
Approx 20cm on the ground at Cabin Creek parking, rapidly settling, so imagine almost double that fell over night?S-1, PPgp 3mm, temps 32-33F at parking, limited obs due to visibility.
Sz 1 on the road cut, 3200ft, S aspect, failed within storm snow, propagated 10m, initiated in 38-40 degree rollover ...
Snowpack Observations
Generally "upside-down" HST, moist-going-to-wet by 11 a.m. in the upper 10cm.
Approx 20cm in the parking lot and on road bed, but settling as quickly as it was falling.
Avalanche Problems
| Problem | Location | Distribution | Sensitivity | Size | Comments |
|---|---|---|---|---|---|
Storm Slab
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