Valanga

Avalanche: Davenport Hill

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Quick report

Slope Angle
40°

Avalanche

Slab Width
18 m
Weak Layer
Facets
Vertical Fall
152 m
Avalanche Type
Hard Slab
Slab Thickness
46 cm
Start Zone Aspect
North
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
3048 m

While walking the Silver Fork ridge line notice an avalanche that must have occurred right after last weeks wind event. Couldn't tell for sure if it was a natural, or triggered remotely from some body walking the ridge. Weak layer appeared to be facets under the dirt layer which in this location is fairly near to the ground. Seems like the slope must have gotten cross loaded during the strong wind event and overloaded the buried facets, by the size of the chunks in the debris pile I am assuming it was a hard slab formed by the two days of ENE winds. Ran full track to the flats. Found it kind of interesting because it is the first non explosive cause avalanche that I have seen in the central Wasatch since the wind event. Photos, part of the crown, the flank of the slide, debris pile, and a bed surface of rocks that would have been an unpleasant ride.

FORECASTER NOTE: Due to lack of other natural avalanches during the east wind event and the presence of numerous old ski tracks near the crown this was likely triggered by someone on the ridge. Kobernik