Avalanche: Days Fork

Observation Date
Thursday, December 27, 2012
Avalanche Date
Thursday, December 27, 2012
Region
Salt Lake » Big Cottonwood Canyon » Days Fork
Location Name or Route
Days Fork
Elevation
10,400'
Aspect
Northeast
Slope Angle
39°
Trigger
Skier
Trigger: additional info
Intentionally Triggered
Avalanche Type
Soft Slab
Avalanche Problem
New Snow
Weak Layer
Density Change
Depth
14"
Width
60'
Vertical
500'
Comments

Buried wind slabs along exposed N, E, and W aspect ridgelines were sensitive to slope cuts and cornice stomping. We triggered several along on our tour and noticed some commonalities that helped us manage the hazard. Each fracture initiated in the wind-exposed first few feet below upper-elevation ridgetops and only propagated below ski cuts. Though the slabs were on the small side, they were fast-running and entrained unconsolidated snow as they moved.

I wouldn't want to be below one that was cut loose by someone else, but with good route selection and thoughtful slope cuts the hazard felt manageable to our experienced party.

Coordinates