Valanga

Avalanche: Shumway Canyon

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Avalanche

Slab Width
15 m
Weak Layer
Wet grains
Trigger Type
Natural
Vertical Fall
137 m
Avalanche Type
Wet Loose
Trigger Detail
Cornice Triggered
Start Zone Aspect
East
Avalanche Problem
Wet Snow
Start Zone Elevation
2621 m

I observed two avalanches in Shumway Canyon(s), seen from the Maple Rise Area, on Wednesday. The first probably occurred over the weekend (3-30/31). It involved wind drifted storm snow and was around 400' wide, running ~800'. The second probably happened on Tuesday midday or afternoon. It's a wet avalanche that started as a wet sluff but pulled out a wet slab lower in it's path.