Observation: Cardiff Fork

Observation Date
12/27/2020
Observer Name
Catino
Region
Salt Lake » Big Cottonwood Canyon » Cardiff Fork
Location Name or Route
Cardiff Fork
Red Flags
Red Flags
Cracking
Poor Snowpack Structure
Snow Profile
Aspect
Southeast
Elevation
9,300'
Comments
Travel today was in Cardiff Fork on lower angle E slopes and some steeper SE slopes. The skiff of snow and wind freshened things up and I thought it would be good to keep tabs with the weaker snow that is sitting on the southern half of the compass - since the writing is on the wall for the shady slopes.
The pit from Snowpilot is attached. Of note the Solstice Crust between 34-35cm was a bit stronger than 1F, but slightly less then P. So I kept it at 1F since in some areas it was very easy to poke through. This layer and the weak and thin Radiation Recrystallization layer have my attention for when we receive a bigger load. The RR layer had facets just below it and was very thin. Furthermore the snow below the Solstice Crust is weak. No results, ECTN, and not an issue today. However, I think the connectivity of the RR and weak snow below the Solstice Crust is something to keep in mind when bigger storms line up.
First photo is of the pit with the various facet crust sandwich.
Second photo are the large grain facets which I found atop a very stout melt form layer. I didn't think much of this layer until I continued with a shovel shear and got a very easy shear out of it. Perhaps the vapor gradient is causing it to weaken on top of the frozen melt forms, and the snow was already weak from sitting around in November... Either way it was interesting to see.
Considerable on the shady aspects // Moderate on solars.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable