Sawtooth Avalanche Center

Pro Field Report

Basic Information

Observation Details

Observation Date:
January 5, 2022
Submitted:
January 6, 2022
Observer:
SAC - VandenBos
Zone or Region:
Galena Summit and Eastern Mtns
Location:
Durrance (6,300-9,000', E-SE-S-SW)

Signs of Unstable Snow

Recent Avalanches? 
Yes
Cracking? 
Isolated
Collapsing? 
None Experienced
Avalanches observed refers to 3 small dribblers that hit the edge of the highway across from Hulen Meadows. Cracking in most fresh wind drifts

Snow Stability

Stability Rating: 
Fair
Confidence in Rating: 
Moderate
Stability Trend: 
Worsening

Bottom Line

Ongoing storm had created new snow problems at all elevations.

Media/Attachments

https://www.instagram.com/p/CYX3i4WFOdX/

Advanced Information

Weather Summary

Cloud Cover:
Obscured
Wind:
Strong , NW

Winds blowing steady at the upper end of moderate/lower end of strong out of the NW. Snowing S-1 through afternoon, hard to get a handle on storm totals and accumulation during the tour thanks to the wind.

Avalanche Observations

3 small dribblers hit the edge of the highway across from Hulen Meadows, in the typical location.

Snowpack Observations

No formal obs, just looking at wind and snow. Wind was hard at work for the first 800' above the highway, then calmed a bit, eventually picking back up as I neared the top. Looking around at trees it appeared that it was not moving significant snow in most middle elevation terrain. Fresh slabs were particularly reactive at lower elevations, where they were the stickiest/most ductile and where they were sitting on grains that had been more highly faceted thanks to the inversions of the past few days. Probably could have found a lot of touchy slabs at lower elevations today if you wanted to go looking for them.

Avalanche Problems

Problem Location Distribution Sensitivity Size Comments
Wind Slab
Isolated
Specific
Widespread
Unreactive
Stubborn
Reactive
Touchy
D1
D1.5
D2
D2.5
D3
D3.5
D4
D4.5
D5
Comments: Rose shaded based on where slabs are suspected to be most common.

Terrain Use

Avoided directly entering avalanche terrain for simplicity. Crossed through the bottom of the runout of a historic path