Avalanche: Emma Ridges 4/6/2011

Observer Name:

Greg Gagne

Observation Date:

04/06/2011

Occurrence Date:

04/06/2011

Occurrence Time:

11:30am

Region:

Salt Lake
Little Cottonwood Canyon
Emma Ridges

Location Name:

Emma Ridges

Location

40° 35' 54.6324" N, 111° 37' 56.7228" W

Avalanche Characteristics

Elevation:

10000'

Aspect:

Southeast

Slope Angle:

Trigger:

Skier

Trigger: additional info:

Unintentionally Triggered

Avalanche Type:

Wet Slab

Weak Layer:

New Snow/Old Snow Interface

Depth (avg):

Width:

100'

Vertical:

500'

General Comments

Triggered a wet slab avalanche atop the Emma Ridges while skiing down towards Alta late morning. Like all wet avalanches, ran slowly and we were able to easily ski out of it. But sizable debris pile at the toe. Slab was new snow only and ran on the still-frozen crust underneath. We felt pretty good about stability skiing down South-facing aspects, but this surprised me a bit. WS-ASu-R2/D2-I

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