Avalanche: Ben Lomond 1/2/2011

Observer Name:

Whillock

Observation Date:

01/02/2011

Occurrence Date:

01/02/2011

Occurrence Time:

Unknown

Region:

Ogden
Ben Lomond

Avalanche Characteristics

Elevation:

Unknown

Trigger:

Skier

Trigger: additional info:

Unintentionally Triggered

Avalanche Type:

Hard Slab

Weak Layer:

Density Change

Depth (avg):

12"

Depth Range:

6" to

Width:

70'

People Involved

Caught:

Carried:

General Comments

Skiier triggered hard wind slab. East aspect, approximately 75' wide, 40' tall, 6" crown at the top, 2ft in the middle. Triggered while skinning midway along the slab, approximately 35 degrees. Weak layer appeared to be a density change about 4" above a raincrust.

No signs of instability before collapsing. The slab propagated immediately above skiier and slid. The slab broke into large chunks, some 4ft in size.

General Comments 2