Observation Date
Sunday, January 24, 2016
Avalanche Date
Sunday, January 24, 2016
Region
Salt Lake » Little Cottonwood Canyon » Alta Periphery » Dry Fork of AF
Location Name or Route
Dry Fork of AF/Point Supreme
Elevation
10,500'
Aspect
Southeast
Slope Angle
38°
Trigger
Skier
Trigger: additional info
Intentionally Triggered
Avalanche Type
Soft Slab
Avalanche Problem
Wind Drifted Snow
Depth
10"
Width
80'
Vertical
250'
Comments
There was a strong wind (~30 mph) from the Northwest transporting snow over the ridge and depositing it on the popular slope just off of Point Supreme in Dry Fork of AF Canyon. My first cornice kick gave me a small reaction on a South facing slope, 8" deep, 30 feet wide, and nearly 100 feet long of a medium density wind slab). Not high energy, but the cornice section that fell and triggered it was only about microwave sized.
The next one I got to and kicked broke about 10" deep, 80 feet wide, and ran out 200 feet. As that one went, it another slide that was a bit deeper and wider broke about 200 feet away towards Sunset peak. I don't know if it was sympathetic or natural and the timing was coincidental.
I called Alta Dispatch and reported them, and carried on along the ridge.
Coordinates