Observer Name
Garcia/Trenbeath
Observation Date
Thursday, December 11, 2025
Avalanche Date
Wednesday, December 10, 2025
Region
Moab » Mt. Tomasaki
Location Name or Route
West Face of Tomasaki
Elevation
11,600'
Aspect
West
Slope Angle
36°
Trigger
Natural
Avalanche Type
Hard Slab
Avalanche Problem
Wind Drifted Snow
Weak Layer
Facets
Depth
18"
Width
175'
Vertical
900'
Comments
We observed this avalanche on Thursday, December 11. Strong winds out of the northwest blew for 12 hours on Saturday night into Sunday morning. Eric traveled this route on Sunday, December 7, and did not see any slide debris along this path. This slide must have occurred after that. As of 6 AM on 12/11, strong winds from the northwest blew for a continuous 72-hour period. The avalanche most likely occurred during this wind event, and the debris looked relatively fresh.
HS-N-R1-D2
Coordinates
