Observation: Gobblers

Observation Date
1/14/2021
Observer Name
N. McEachern, E. Murray
Region
Salt Lake » Big Cottonwood Canyon » Mill Creek Canyon » Mill A » Butler Fork » Gobblers
Location Name or Route
Gobblers Knob North
Red Flags
Red Flags
Cracking
Collapsing
Poor Snowpack Structure
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
The spatial variability in our snowpack has my gears turning. It seemed like we skied on every snow surface today from hard slabs to total facets to...rocks. Saw an abundance of collapsing and cracking in lesser traveled areas and if slopes were steeper, I'm sure they would have slid. This PWL combined with the variability and lack of any reliable way to test the weak layer before dropping in will keep me away from avalanche terrain for the time being. Hand pits and hand shears showed a cohesive snowpack above widespread 10cm-20cm of F hardness on the bottom of our thin snow pack. Nope, this PWL isn't going anywhere. Time to introduce yourself and understand how dangerous it can be.
Comments
Today's tour was up Bowman Fork through Yellowjacket Trees to the N. Ridge of Gobbler's then down Cabin Run and out the beautiful Pole Canyon. Trace of snow on the ground, but nothing significant and seems like yesterday's system produced some graupel . HS measurements ranged from 10cm on the ridge to nearly bottomless in crossloaded pockets. Unfortunately, average HS around 9,000' to 10,000' in this part of the Wasatch seems to be around 60cm. The sun crust on solar aspects below 8,500' was unsupportive and over one inch thick with weak snow below it. No snow profile today. I'm pretty sure we know what the problem is and regardless of any test results I'm not skiing anything steeper than 30 for a long time.
Worth mentioning that the current snow surface is beginning to show signs of weakening. We can only hope that we don't start to deal with two PWL problems.
Photo 1: Cornicing on ridge
Photo 2: It ain't much, but it's honest work.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable
Coordinates