Observer Name
Braden Alder, UAC staff
Observation Date
Monday, January 29, 2024
Avalanche Date
Sunday, January 28, 2024
Region
Logan » Southeast Idaho » Franklin Basin » Gibson Lakes Area » Wilderness Peak
Location Name or Route
Wilderness Peak/ Andrew Nyman Mountain
Elevation
9,300'
Aspect
East
Slope Angle
39°
Trigger
Unknown
Trigger: additional info
Remotely Triggered
Avalanche Type
Hard Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
4'
Width
1,000'
Vertical
700'
Snow Profile Comments
Crown profile from near the northern flank. ESE facing, 33° slope
Comments
Potentially happened either the 27th or 28th.
Sled tracks were apparent when the avalanche was observed on Monday, 1-29, so the avalanche could have been remotely triggered. Rapid warming on Sunday, 1-28 might have shocked the snow, causing a natural hard slab avalanche. TW
Comments
We went up to the avalanche on Tuesday, 1-30-2024. It's hard to tell if the avalanche was a natural one or if it had been remotely triggered from an adjacent slope. The timing is also unclear, but it likely happened during rapid warming over the weekend (1-27 0r 1-28). There were a few other natural avalanches spawned by the heat and the first direct sun on slopes that had been shrowded in clouds for a long time previously. TW
Video
Coordinates