Observer Name
Flygares
Observation Date
Friday, April 1, 2011
Avalanche Date
Thursday, March 31, 2011
Region
Logan » Logan River » Tony Grove » Cornice Ridge
Location Name or Route
Cornice Ridge
Elevation
9,500'
Aspect
East
Slope Angle
35°
Trigger
Natural
Trigger: additional info
Cornice Triggered
Avalanche Type
Cornice Fall
Depth
Unknown
Width
200'
Vertical
500'
Comments
There was a large cornice fall/avalanche on Cornice ridge yesterday (200 ft X 500 vert). The slide traveled far and fast as seen in the picture below. The toe of the slide is at the right side of the picture below and traveled over two small hills at the bottom.
Comments
This picture is taken from the toe of the avalanche. The alpha angle of this slide is 18 degrees!!! The trees were still covered in snow from the powder cloud, which leads me to believe the slide occurred sometime late yesterday afternoon.
Comments
Some of the chunks were huge. This was one of the bigger chunks near the bottom of the slide. It wasn’t the biggest in the slide path but it was still huge. (BTW we took these pictures at about 8:30 in the morning so things were still frozen up pretty hard and we weren’t worried about it sliding again.)
Coordinates