Avalanche: West Bowl 3/20/2011

Observer Name:

Kobernik

Observation Date:

03/20/2011

Occurrence Date:

03/20/2011

Occurrence Time:

Morning

Region:

Salt Lake
Big Cottonwood Canyon
Silver Fork
West Bowl

Location Name:

North Facing Headwall

Location

40° 35' 56.04" N, 111° 37' 36.6384" W

Avalanche Characteristics

Elevation:

9800'

Aspect:

North

Trigger:

Natural

Avalanche Type:

Soft Slab

Weak Layer:

Density Change

Depth (avg):

12"

Width:

Unknown

Vertical:

250'

General Comments

Wind loading from southerly winds. Suspect low density new snow under fresh wind slab was the weak layer. We found similar conditions throughout the day in other terrain. Hard to say how wide it was, but remnants of the crown made me think 50 to 80 feet wide.

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