Avalanche: Double Hill 12/17/2009

Observer Name:

Scroggin, Gordon

Observation Date:

12/18/2009

Occurrence Date:

12/17/2009

Occurrence Time:

Unknown

Region:

Double Hill
Double Hill
Whitney Basin
Uintas

Location

40° 50' 2.3856" N, 110° 57' 36.4644" W

Avalanche Characteristics

Elevation:

9800'

Aspect:

Northeast

Slope Angle:

Trigger:

Snowmobiler

Trigger: additional info:

Remotely Triggered

Avalanche Type:

Soft Slab

Weak Layer:

Facets

Depth (avg):

unknown

Depth Range:

2.5' to

3.5'

Width:

300'

Vertical:

400'

General Comments

12-18-09 Double Hill, Human Triggered, Scroggin.jpg

General Comments 2

The avalanche was triggered on the flats above the first bench, well above the rider in what appears to be a relatively save location. This clearly shows how tricky the avalanche conditions are right now.

12-18-09 Double Hill, Human Triggered Two, Scroggin.jpg

General Comments 3

Early season snow which grew weak and sugary is the culprit in this avalanche.

12-19-09, Double Hill Bed Surface, Scroggin.jpg

General Comments 4

Ted performed a compression test on the flank of the slide and this column popped out to the ground after only four taps from the wrist.

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