Avalanche

Avalanche: Green Canyon Mouth

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Observation photo 1

Avalanche

Slab Width
61 m
Weak Layer
Facets
Trigger Type
Natural
Vertical Fall
381 m
Avalanche Type
Soft Slab
Slab Thickness
46 cm
Start Zone Aspect
North
Avalanche Problem
Wind Slab
Start Zone Elevation
1951 m

A fresh avalanche was apparent this afternoon, quite visible from the north with brief clearing... It came down and stopped in the flats pretty close to the road accessing Green Canyon TH. I noticed some branches and brush in the debris pile. It was caused by rapid loading of heavy accumulations and drifting from strong southwest winds.

Although I didn't want to go up and examine the actual avalanche, I did dig a test pit on a nearby north facing slope. I found a couple layers of very weak and moist sugary faceted snow.