Avalanche

Avalanche: Pleasant Creek

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Avalanche

Weak Layer
Facets
Trigger Type
Natural
Vertical Fall
152 m
Slab Thickness
61 cm
Start Zone Aspect
Northeast
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
2865 m

I stumbled onto two natural avalanches that occurred due to wind depositing snow onto the buried weak layers that have formed earlier this season. I was in this area last week and was in the starting zone of this second avalanche that I'm documenting. I have no doubt that the avalanche failed on weak sugary faceted snow.

Today, it became very obvious that the winds created a dangerous situation since Thursday. I noted lots of wind rippled snow and deeper drifts even in the mid elevations. There was an average of 4 to 8 inches of new snow with drifts up to a couple feet deep by the time I ascended to around 9000'. I also know that there is an abundance of weak sugary snow that these drifts are forming on top of. I turned around due to too much avalanche danger.