Avalanche: Squaretop 4/8/2011

Observer Name:

Stoy

Observation Date:

04/08/2011

Occurrence Date:

04/08/2011

Occurrence Time:

12:00pm

Region:

Squaretop
Park City Ridgeline
Salt Lake

Location Name:

Square Top, Hanging snowfield

Location

40° 39' 46.5516" N, 111° 35' 56.8356" W

Avalanche Characteristics

Elevation:

9800'

and below

Aspect:

East

Southeast

Slope Angle:

Trigger:

Skier

Trigger: additional info:

Intentionally Triggered

Avalanche Type:

Wet Slab

Weak Layer:

Density Change

Depth (avg):

Width:

25'

Vertical:

800'

General Comments

Skier cut wet slab 6" in depth, about 20' feet wide. Rna slowly on the density change. Upon reaching a roll over the first avy slowed to halt but with added weight from the cascading snow, a second avy of similar dimensions released on a SE slope at about 9500' with a 33+ degree slope, which ran a few hundred feet slowly. Enough weight behind it to carry a skier into a tree, over rocks but nothing of severe consequences on this slope. New snow interface 6-14" down, was gloppy and wet from midday heating yesterday or the day prior with the new snow acting as an insulator.

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