Observation: Avalanche Professional

All Observations

Basic Information

Observation Details

Observation Date:
February 20, 2022
Submitted:
February 20, 2022
Observer:
Avalanche Professional - Vetta Mountain Guides
Zone or Region:
Snoqualmie Pass
Location:
Silver Fir (N, NE, E, SE)

Signs of Unstable Snow

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

Media/Attachments

Advanced Information

Weather Summary

Cloud Cover:
Mostly Cloudy
Temperature:
Below freezing all day°F
Wind:
Light , NW
New/Recent Snowfall:
30cm avg HST in am with periods of S-1 during day

Mixed sun/cloud, light wind, more solar input than forecast, settling/heavy snow limited quantity avail for transport below tree line.

None observed

Snowpack Observations

Avg HS 255cm in zone

Pit 1, east aspect, 3500ft, 28-deg slope, ECTX, CTH (Q3) on 2/14 layer dn 40cm

Pit 2–E aspect, 4000ft, 26-degree slope
CTV x2, on 2/14 layer
CTH x3, SC, dn 29cm (mid-storm IF rc)
CTM (SC) dn 29cm
ECTX

Avalanche Problems

Problem Location Distribution Sensitivity Size Comments
Storm Slab
Isolated
Specific
Widespread
Unreactive
Stubborn
Reactive
Touchy
D1
D1.5
D2
D2.5
D3
D3.5
D4
D4.5
D5
 Layer Depth/Date: 220219
Weak Layer(s): Feb 13, 2022 (MFcr)
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