Observer Name
Gagne/Johnston
Observation Date
Thursday, March 6, 2025
Avalanche Date
Thursday, March 6, 2025
Region
Salt Lake » Mill Creek Canyon » Yellow Jacket
Location Name or Route
Yellowjacket
Elevation
9,500'
Aspect
North
Trigger
Skier
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Soft Slab
Avalanche Problem
Wind Drifted Snow
Weak Layer
Density Change
Depth
12"
Width
50'
Vertical
700'
Comments
We spoke to the party that had unintentionally triggered this avalanche at the top of Yellowjacket Gulch on a north-facing aspect. The skier was not carried in the slide.
The slope was wind-loaded from southwest winds. The starting zone is not that big, but the avalanche involved a lot of snow and ran 700' vertical, with debris was up to 1 meter (3 feet) on the uphill side of trees. Weak layer is a density inversion within the storm snow. Photos of the starting zone and the toe of the debris.
SS-ASu-R2-D2
Video
Coordinates