Avalanche: Wilson Fork 1/14/2011

Observer Name:

Hardesty and Fitzgerald

Observation Date:

01/14/2011

Occurrence Date:

01/14/2011

Occurrence Time:

Unknown

Region:

Salt Lake
Mill Creek Canyon
Wilson Fork

Location Name:

Reynolds to Soldier and Wilson into Alexander Basin into Mill Creek

Location

40° 40' 21.8244" N, 111° 39' 52.596" W

Avalanche Characteristics

Elevation:

9100'

Aspect:

North

and steeper

Slope Angle:

Trigger:

Skier

Trigger: additional info:

Intentionally Triggered

Avalanche Type:

Soft Slab

Weak Layer:

Surface Hoar

Depth (avg):

Depth Range:

4" to

Width:

30'

Vertical:

250'

General Comments

Classic surface hoar activity. Structure showed it's hand early on with easy tilt tests and localized collapsing. Note below how the avalanche not only released beneath the ridgeline but pulled the rug out up and above the windroll there on a 20 degree 'slope'. No sympathetic releases noted. Other minor remote releases, cracking in both the fracture line and stauchwall on slopes that did not release.

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