Avalanche: Hatcher Pass

Location: Marmot

Route & General Observations

Went up middle rib then ridge to top of mountain

Avalanche Details
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Trigger SkierRemote Trigger No
Avalanche Type UnknownAspect West
Elevation 4000ftSlope Angleunknown
Crown DepthunknownWidth 60ft
Vertical Run 900ft  
Avalanche Details

First a comment on the snow pack. There is a crust with some powder on top. These are No-telemark conditions. The snow is very noisy because of the crust. If you fall while hiking and your shirt sleeves are up, you will receive a rash on your arms from the ice.
Often the fresh snow will sluff on the crust layer and gradually gain speed and mass.
The avalanche I caused was not a sluff and propagated and had a crown. Then it collected all the powder on the crust and gained significant force.
We suspected a change in the snow pack while skinning and sure enough the adjacent slope slide while skiing.
The other ski runs we did did not cause avalanche and there where only a very few other people.

Photos & Video
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