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Observation: Alta Ski Area

Observation Date
11/9/2021
Observer Name
Hunter Iverson
Region
Salt Lake » Little Cottonwood Canyon » Alta Ski Area
Location Name or Route
Rock ‘n Roll - Alta
Red Flags
Red Flags
Heavy Snowfall
Cracking
Collapsing
Poor Snowpack Structure
Avalanche Problem #1
Problem
New Snow
Trend
Increasing Danger
Problem #1 Comments
About 20-30cm new snow, soft-slab and loose. This snow has fallen on about a 1.5cm thick crust. New snow failed in an CT4 and ECTP4 on top of the upper most crust. Overall pretty right-side up snowpack, but there was a soft layer underneath the crust. No noticeable reaction below the crust on which the new snow sits.
Ground layer is quite firm and damp. We measured about 85cm of total snow.
This observation occurred at 8:45 pm. Slope was 30 degrees, outside air temp was low 20 degree.
While the slab failed across the ECT, it was not bonded well and sloughed apart pulled.
Snow Profile
Aspect
Northwest
Elevation
9,900'
Comments
We had a great time skiing the run after conducting the test off to the side. No noticible red flags while skiing.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates