Pro Field Report
Basic Information
Observation Details
Observation Date:
January 3, 2021Submitted:
January 4, 2021Observer:
SAC - VandenBosZone or Region:
Sawtooth and Western Smoky MtnsLocation:
Dollarhide (6,500-9,700, primarily east half of the compass)Signs of Unstable Snow
Recent Avalanches?
YesCracking?
WidespreadCollapsing?
Widespread
Cracking and collapsing widespread at low and middle elevations, more localized where wind had been at work up high
Snow Stability
Stability Rating:
PoorConfidence in Rating:
LowStability Trend:
WorseningBottom Line
Even with a small load this snowpack was becoming reactive. Additional loading will cause rapidly decreasing stability.
Media/Attachments
Advanced Information
Weather Summary
Cloud Cover:
OvercastWind:
Strong , WNew/Recent Snowfall:
7-8cm new snow from previous 48 hours.Overcast skies clearing in the late afternoon. Strong winds blowing up high, digging down into middle elevation and moving plenty of snow.
Avalanche Observations
Observed two small recent wind slab avalanches. Intentionally triggered one small wind slab that broke 30cm deep, 10m wide. Debris looked like a D1, but it would've been a nasty slide to get caught in.
Avalanche Problems
| Problem | Location | Distribution | Sensitivity | Size | Comments |
|---|---|---|---|---|---|
Persistent Slab
|
|
Layer Depth/Date: 30-45cm Weak Layer(s): Dec 11, 2020 (FCsf) |
|||
Wind Slab
|
|
Terrain Use
Avoided avalanche terrain.