Avalanche: Pinball Alley 4/10/2011

Observer Name:

Jeremy Jensen

Observation Date:

04/10/2011

Occurrence Date:

04/10/2011

Occurrence Time:

10:30am

Region:

Logan
Logan River
Tony Grove
Pinball Alley

Location Name:

Lower Pinball

Location

41° 53' 33.468" N, 111° 39' 28.9584" W

Avalanche Characteristics

Elevation:

8700'

Aspect:

East

Slope Angle:

Trigger:

Unknown

Trigger: additional info:

Unintentionally Triggered

Avalanche Type:

Soft Slab

Weak Layer:

New Snow/Old Snow Interface

Depth (avg):

Width:

150'

Vertical:

100'

General Comments

Powsurfer triggered, no one was caught or carried in this relatively shallow and manageable soft slab. Broke on an east face that had been loaded by west winds overnight. Failed on a thin zipper crust formed by brief periods of sun the day before. 4-6 inches deep, 150 feet wide.

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