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Observation: Logan Dry Canyon

Observation Date
2/27/2013
Observer Name
Nate H-S
Region
Logan
Location Name or Route
Logan Dry Canyon
Weather
Sky
Overcast
Wind Speed
Light
Snow Characteristics
New Snow Depth
4"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
It seems that Tuesday morning's system pushed through with 3-4" of light, dry snow, followed by an afternoon rime event that coated most trees at elevations >8000 ft. Lots of distinct surface hoar had formed over night and wind was mixing it all up. Sunday's skin track was filled in on the ridge and the cornices had grown quite a lot. Riding was fast and smooth.
Red Flags
Red Flags
Wind Loading
Poor Snowpack Structure
Red Flags Comments
There didn't seem to be much of weak layer to fail on and I noticed mass settling relative to the weekend snow. Cavity hoar near trees and rocks was enough to push a pole down to the grip at some points, but will probably be less of an issue than the upcoming warming we're going to experience this weekend.
Avalanche Problem #1
Problem
Persistent Weak Layer
Avalanche Problem #2
Problem
Cornice
Problem #2 Comments
Leeward ridges are getting pretty stacked up. Warming might cause a few of these to weaken and pop off.