Observer Name
Whillock
Observation Date
Sunday, January 2, 2011
Avalanche Date
Sunday, January 2, 2011
Region
Ogden » Ben Lomond
Location Name or Route
Elevation
Unknown
Aspect
Trigger
Skier
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Hard Slab
Weak Layer
Density Change
Depth
12"
Width
70'
Vertical
Unknown
Caught
1
Carried
1
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.
Coordinates