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Avalanche: Above Buckboard Flat 3/13/2010

Observer Name:

Lambrose

Observation Date:

03/13/2010

Occurrence Date:

03/13/2010

Occurrence Time:

12:00pm

Region:

Above Buckboard Flat
Horsehead Peak
Abajo Mountains
Moab

Location

37° 52' 17.0328" N, 109° 27' 54.252" W

Avalanche Characteristics

Elevation:

10300'

and above

Aspect:

East

and steeper

Slope Angle:

Trigger:

Skier

Trigger: additional info:

Unintentionally Triggered

Avalanche Type:

Soft Slab

Depth (avg):

unknown

Depth Range:

2' to

Width:

600'

Vertical:

1500'

General Comments

Scary example of Persistent Weak layers we've been talking about since early Feb. Exact weakness is unknown, but this one took out a significant amount of old snow. triggered in a thinner snowpack area near Ridge on an ENE facing slope that approached 40 degrees and averaged 35 degrees. Slab was 2-5 feet deep and appx. 600 YARDS wide. Slide ran about 1500 vertical feet. Thanks to Pat Lambrose for this observation.

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