Observer Name
Jeremy Jensen
Observation Date
Sunday, April 10, 2011
Avalanche Date
Sunday, April 10, 2011
Region
Logan » Logan River » Tony Grove » Cornice Ridge, Big Cornice
Location Name or Route
Pinball Alley
Elevation
9,300'
Aspect
East
Slope Angle
37°
Trigger
Snowmobiler
Trigger: additional info
Remotely Triggered
Avalanche Type
Soft Slab
Weak Layer
New Snow/Old Snow Interface
Depth
6"
Width
300'
Vertical
500'
Comments
Soft slab avalanche broke a few hundred feet above snowmobilers climbing the gully just below. Rider was able to turn around and get out of the way of the debris which did not run as far as they usually do in this area. Debris pile was soft and around 4-5 feet deep at the base of the bowl. Visibility was low so I did not get a photo.
Coordinates