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Observation: Grizzly Gulch

Observation Date
2/8/2021
Observer Name
Muller UMA Level 1
Region
Salt Lake » Little Cottonwood Canyon » Grizzly Gulch
Location Name or Route
Grizzly Gulch
Weather
Sky
Few
Wind Direction
Northwest
Wind Speed
Moderate
Weather Comments
Winds around Michigan City were near constant and sustained at moderate. Wind direction up high were a clear NW but down low swirled substantially and predominantly out of ENE.
Snow Characteristics
Snow Surface Conditions
Wind Crust
Snow Characteristics Comments
Raised ski tracks, boot tracks, and sastrugi just above Michigan City.
Red Flags
Red Flags
Wind Loading
Poor Snowpack Structure
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
It was quickly obvious upon digging that our PWL is still our primary concern and in this location approximately 2/3 of the snowpack was facets of various sizes. Upon getting CTVE (on isolation), we moved onto a ECT. The first video shows an ECTP18 SP result, and then as the digging was quite easy and we had plenty of space I decided to do a Rutschblock Test for the first time in quite a few years. We got RB2 SP M, with a bit of a broken result of about 80% of the area.
Video
Video
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable
Coordinates