Avalanche: Reed and Benson Ridge

Observer Name
Joel Shegrud
Observation Date
Thursday, January 3, 2019
Avalanche Date
Thursday, January 3, 2019
Region
Salt Lake » Big Cottonwood Canyon » Cardiff Fork » Reed and Benson Ridge
Location Name or Route
Reed and Benson Ridge
Elevation
9,600'
Aspect
West
Trigger
Natural
Avalanche Type
Wet Loose
Weak Layer
Wet grains
Depth
Unknown
Width
Unknown
Comments
4:01 PM January 3, 2019
I was standing near the stream about to cross the stream at the bottom of the Mill D South Fork drainage when I heard the avalanche. I turned around and observed a large volume of loose avalanche debris cascading off a cliff face below Reed and Benson ridge. I was surprised by the volume and duration of the falling debris, it just kept coming (probably close to 10 seconds). By the time I had ascertained my partner was safe and I pulled out the phone to take a picture the debris was nearly done falling over the cliff.
I suspect that somewhere in the rocks and the sunbaked snow field above a release happened, picked up steam and carried a large volume of snow over the cliff in the attached picture. From our perspective we couldn't see anything to ascertain depth width or where the debris ended up. The caution about the danger of warming snow in the forecast that morning was right on.
Coordinates