Avalanche

Avalanche: Twin Lakes area

Bill NalliSalt Lake
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Quick report

Slope Angle
45°

Avalanche

Slab Width
3 m
Weak Layer
New Snow
Trigger Type
Natural
Vertical Fall
122 m
Avalanche Type
Soft Slab
Slab Thickness
15 cm
Start Zone Aspect
North
Avalanche Problem
New Snow
Start Zone Elevation
3170 m

Snow depths in the Grizzly Gulch / Twin Lakes Pass area ranged from 50cm to 75cm. The right-side up new snow was mostly stable consisting of 4F+ DF near the ground, lightening up to F hard new snow near the surface. A slight density change about 15cm down from the surface was the weak layer in a small SS-N-R1-D1-S that likely occurred overnight Sunday 11/8 on a very steep north facing chute along Fantasy ridge.

North facing Fantasy Ridge SS-N-R1-D1-S. 10,400', 10' wide, 15cm deep.

Coverage is still very thin but what a difference one storm can make.

Very little wind effect up high in this good base building storm. Overall LOW hazard. This pit location was at 10,200', East-facing, along the Twin Lakes ridge. 77cm total depth. 40cm 4F+ closer to the ground with 37cm F near the surface.