Manteau neigeux

Observation: Salt Lake

jakemacarthurSalt Lake
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Photo d’observation 1

Quick report

Aspect
Northeast
Red Flags
Recent Avalanches, Wind Loading, Collapsing, Poor Snowpack Structure
Elevation
2987 m
Red Flags Comment
<p>Some evidence of recent avalanches but not in the past 2 days. We had one significant collapse in a wind loaded area. </p>

I was surprised to find the layer as reactive as it was. We reassessed and stuck to lower angle terrain.

Snowpack

Instability Comment
<p>We had a significant collapse while traveling to dig a hasty pit. After backing up a bit into gentler terrain, I did an Extended Column Test and got an ECTPV, or a fracture propagation during isolation. Because of the low angle, the column did not pop out, but the shear was quite clean - definitely Quality 1. 40 centimeters deep on the buried surface layer from prior to these recent storms. This was definitely in a wind loaded area, but I felt that it was the weak layer that was the key factor in the instability.</p> <p>Wind loading occurring. More likely to slab up in these areas and cause a problem.</p>

Very light density, blower pow. Some loading and transport occurring.