Valanga

Avalanche: Hells Canyon

E. Whiting/UAC Staff/ Snowbasin Ski PatrolOgden
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Avalanche

Slab Width
15 m
Weak Layer
Facets
Trigger Type
Skier
Vertical Fall
76 m
Avalanche Type
Soft Slab
Slab Thickness
41 cm
Trigger Detail
Unintentionally Triggered
Start Zone Aspect
Southeast
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
2347 m

Notes from UAC/SBSP:

We observed one skier triggered avalanche on a southeast facing aspect in the Toilet Bowl region of Hells Canyon. This avalanche was skier triggered at 7700'. This avalanche ran on small grained facets above a melt-freeze crust. This avalanche broke above the skier. This avalanche is similar to some others that we've seen recently in wind-protected areas where there was enough time before the last storm for small facets to develop and be preserved on top of the crust.

Notes from Eric Whiting:

There is a hard solar baked layer about 16" under the new snow. This spot was in direct sunlight and was heating up quickly. I made on turn one the slope when it broke about 30' above me. Knocked me down but I was able to self arrest before being carried.

Photo above E. Whiting