UDOT PLANNED AVALANCHE CLOSURES!!

Avalanche: Cornice Ridge, Big Cornice

Observer Name
Toby Weed
Observation Date
Monday, November 23, 2009
Avalanche Date
Monday, November 23, 2009
Region
Logan » Logan River » Tony Grove » Cornice Ridge, Big Cornice
Location Name or Route
Elevation
9,400'
Aspect
North
Slope Angle
39°
Trigger
Skier
Trigger: additional info
Intentionally Triggered
Avalanche Type
Hard Slab
Depth
21"
Width
300'
Vertical
600'
Comments

I triggered this sizable wind slab avalanche while stomping along Cornice Ridge. Unintentional in that it was quite a bit larger and the slope much more sensitive than I expected...

Comments

The avalanche was 1 to 2 feet deep and around 300 feet wide. The slab failed on a nice layer of faceted snow under the dusty layer from Friday night's wind. Most of the slab built with high winds on Sunday 11-22-09 and overnight.

Comments

Darren McAvoy took this shot of me examining the scene.

Comments

This is looking down the the chunk-filled path of the avalanche. The avalanche ran about 600 vertical feet down the the bench below the bowl.

Coordinates