Avalanche

Avalanche: Thurston Peak

Lincoln BellOgden
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Avalanche

Slab Width
11 m
Weak Layer
New Snow/Old Snow Interface
Trigger Type
Natural
Avalanche Type
Soft Slab
Slab Thickness
30 cm
Trigger Detail
Cornice Triggered
Start Zone Aspect
North
Avalanche Problem
Wind Slab
Start Zone Elevation
2347 m

Appeared that wind blown cornices had overloaded the steep north facing slope, failing at the interface between the fresh snow from the 15th/ 16th, and being exacerbated by prominent rocks at this section, which altered the patterns of drifting snow.