Observer Name
Jeremy Jensen
Observation Date
Monday, February 3, 2025
Avalanche Date
Monday, February 3, 2025
Region
Logan » Logan River » Tony Grove » Cornice Ridge » Grandfather Cornice
Location Name or Route
Cornice Ridge and Grandfather Cornice
Elevation
9,300'
Aspect
East
Slope Angle
37°
Trigger
Natural
Trigger: additional info
Cornice Triggered
Avalanche Type
Hard Slab
Avalanche Problem
Wind Drifted Snow
Weak Layer
New Snow/Old Snow Interface
Depth
2'
Width
200'
Vertical
500'
Comments
Massive cornice fall propagated the 100-200 ft slab. . Hard to tell when it happened. No new fresh snow in it from yesterday.
Deposition was 10-12' deep. Very impressive piles. Huge chunks and multiple deposition piles. Slab looked to be 1-2' deep but that could be deceiving based on the amount of deposition piled up.
Comments
Last 2 photos are from cornice ridge slide. Cornice fall trigger likely similar timing. Slab looked 2-3' deep ish.
Coordinates