Avalanche: Tony Grove 1/20/2012

Observer Name:

Toby

Observation Date:

01/20/2012

Occurrence Date:

01/20/2012

Occurrence Time:

Overnight

Region:

Tony Grove
Logan River
Logan

Location Name:

Tony Grove Area

Avalanche Characteristics

Elevation:

7100'

and above

Aspect:

North

Northeast

East

and steeper

Slope Angle:

Trigger:

Natural

Avalanche Type:

Hard Slab

Weak Layer:

Facets Below Crust

Depth (avg):

Depth Range:

12" to

Width:

Unknown

Width Range:

40' to

1/2 mile

Vertical:

Unknown

Snow Profile

General Comments

I observed evidence of dozens of natural avalanches from overnight in the Tony Grove Area. Several of these were right above the Tony Grove Road, most above around 7000' in elevation..... Pretty much every slope steeper than about 35 degrees and facing the northeastern quadrant had released... The culprit? you guessed it! Facets

These are photos of a few of the avalanches northwest of Tony Grove Lake

General Comments 2

Looked at a very broad hard slab avalanche on the bench above the lake 2-3' deep, and probably around 1/2 mile wide.

General Comments 3