Avalanche

Avalanche: American Fork

Kelly, Miller, WieringaProvo
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Avalanche

Slab Width
38 m
Trigger Type
Natural
Vertical Fall
381 m
Avalanche Type
Wet Slab
Start Zone Aspect
Southeast
Avalanche Problem
Wet Snow
Start Zone Elevation
2804 m

We observed this avalanche that most likely occurred within the last few days. This was a natural avalanche that appeared to have started as wet-loose rollerballs and stepped down to create a wet slab avalanche on a southeast facing aspect of the gully. The slide was approximately. 100-150' wide and ran 1200' vertical. Probing in the bed surface there was still 170-190cm of snow left below the debris. This wet slab avalanche gouged out a significant chunk of the upper level snowpack and pulled to the ground in steep cliffy areas. It did not run full path and started approximately halfway down the slide path.

Photo of the crown

Photo of the toe

Photo of the debris pile

Photo looking down the debris