Observation: Avalanche Professional

All Observations

Basic Information

Observation Details

Observation Date:
December 12, 2021
Submitted:
December 12, 2021
Observer:
Avalanche Professional - Backcountry Adventure Guides
Zone or Region:
Snoqualmie Pass
Location:
Summit Central, Silver Fir (E-NE 2800ft-3900ft (All BTL))

Signs of Unstable Snow

Recent Avalanches? 
None Observed
Cracking? 
None Experienced
Collapsing? 
None Experienced

Advanced Information

Weather Summary

Cloud Cover:
Obscured
Wind:
Light
New/Recent Snowfall:
HST 30-40cm (12-14"), HN 90-110cm

Light to Calm winds but we traveled in generally protected areas. Precip was S-1 more-or-less the entire day.

No recent avalanches obseved.

Snowpack Observations

We observed around 30-40cm (12-14") of new, low-density snow sitting on the crust that formed during yesterday's warm-up (Dec 11 MFcr). While our travel was limited to the fairly low elevation we observed no structure in the upper snowpack in any of our hand shear, small slope, and formal compression tests. We skied several slopes to 35 degrees with no signs of instability and no cracking or Whumpfing was observed. In the NTL band where we traveled (with a max elevation of ~3900ft) we didn't see any signs of wind loading or wind stiffened, affected or recently transported snow but our travel was generally in more sheltered terrain. Ski Quality was excellent after some pretty lousy and schmooey conditions on Saturday.

Avalanche Problems

We didn't experience any wind loading in the NTL in our (slightly) limited travel.

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