Observer Name
Kobernik
Observation Date
Saturday, February 6, 2021
Avalanche Date
Saturday, February 6, 2021
Region
Skyline » Ephraim Canyon » Philadelphia Flats
Location Name or Route
Philadelphia Flats
Elevation
10,100'
Aspect
Northeast
Slope Angle
38°
Trigger
Snowmobiler
Avalanche Type
Soft Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
2'
Width
100'
Vertical
100'
Comments
Judging from fresh snowmobile tracks, it appears one rider climbed the slope successfully. A second rider most likley was climbing the slope when he triggered the avalanche when he was near the top. It most likley broke under or behind him and he was able to finish the climbe without getting caught.
Coordinates