Avalanche: south of Porcupine Reservoir 1/1/2010

Observer Name:

Larry

Observation Date:

01/01/2010

Occurrence Date:

01/01/2010

Occurrence Time:

Unknown

Region:

south of Porcupine Reservoir
East Fork
Little Bear
Logan

Avalanche Characteristics

Elevation:

8200'

Aspect:

Southeast

and steeper

Slope Angle:

Trigger:

Skier

Trigger: additional info:

Unintentionally Triggered

Remotely Triggered

Avalanche Type:

Hard Slab

Weak Layer:

Facets

Depth (avg):

Depth Range:

12" to

Width:

300'

Vertical:

250'

General Comments

"Remote skier triggered, ESE aspect, 36-38 degrees, 8150' elevation, hard slab with 8" of soft wind deposit on top, 1-3' crown,

General Comments 2

"Initial crown at rocky convexity, and and propagated along minor ridge south of slope. Hard slab broke into several pieces and slid approx 150 yards along slope."

General Comments 3

"South wind depositing snow on top of bed surface. Not quite corniced, not quite pillowed, somewhere in between.

The weak depth hoar layer is approx 5" above terra firma on top of hardpack.

The UAC rating was high, extending to the ESE aspect of this slope."