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Observations

Region: Turnagain
Location: N Side Cornbiscuit
Observer:
Date:

Route & General Observations

Up standard magnum route then down the south side across the creek and up a portion of cornbiscuit. Saw lots of sugary snow on our boot pack up cornbiscuit. We continued along the ridge for a few hundred yards and then decided to drop into a gully. It was fairly steep, but we didn’t get a slope measurement.

Avalanche Details

Avalanche details

Trigger SkierAvalanche Type Soft SlabAspect North
Elevation 2300ftSlope AngleunknownCrown Depth 16in
Width 30ftLength 60ft  

Observer Comments

Triggered on a ski cut. Two different slabs slid simultaneously. The bottom was ~3" thick and was above facets sitting on top of an ice or melt freeze crust. Above this there was an additional 10-12" slab. I didn't look closely at it but I'd guess wind loaded snow on top of the frost layer.

Red Flags

Obvious signs of instability

Recent Avalanches?YesCollapsing (Whumphing)?NoCracking (Shooting cracks)?No

Observer Comments

We didn't notice anything until the slide.

Weather

Weather

There was a small wind lip from south to north wind above the gully.

Snow Characteristics

Snow surface

Wind buff on top, not very soft, but not a crust.

Snowpack

Saw 2 separate slab and weak layer pairs. Bottom slab was ~3" deep, top ~10" deep

Photos & Video

Photos



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