Avalanche: Park City area mountians 3/17/2011

Observation Date:

03/17/2011

Occurrence Date:

03/17/2011

Occurrence Time:

Morning

Region:

Park City area mountians
Salt Lake

Location Name:

Park City asre mountains

Avalanche Characteristics

Elevation:

8000'

Aspect:

Northeast

Trigger:

Explosive

Trigger: additional info:

Intentionally Triggered

Avalanche Type:

Wet Slab

Weak Layer:

Facets

Depth (avg):

2.5'

Depth Range:

2' to

Width:

300'

Vertical:

Unknown

General Comments

Explosive control work released 2 slides on the Park City side this morning. One initiated in newer snow, on a more recent march dirt layer, then stepped down to the ground, failing on wet 1mm facets. The other was a bed surface slide, with the original slide running on the dirt layer. This one also broke out on the ground. The pack received alot of rain yesterday, and may have been isothermal from a string of above freezing days and nights.

General Comments 2

General Comments 3