Observation: Big Cottonwood Canyon

Observation Date
2/7/2025
Observer Name
Pavlantos
Region
Salt Lake » Big Cottonwood Canyon
Location Name or Route
Wasatch Back
Red Flags
Red Flags
Heavy Snowfall
Wind Loading
Cracking
Poor Snowpack Structure
Avalanche Problem #1
Problem
New Snow
Trend
Increasing Danger
Problem #1 Comments
4-5" of grauple plus 1-2" of storm above it observed at empire pass in the flats. More accumulation of grauple than I've ever seen in utah. Grauple poools 4' deep in areas under steep terrain. Snow turned to stellars and dendrites and temps cooled. Grauple layer has set up pretty fast with how high the moisture content is. Dust layer on old snow surface is what has me most curious in days to come. Cracking observed in wind blown snow drifts under snow machine trigger. Hand in photo for scale against grauple obs wall.
Avalanche Problem #2
Problem
Persistent Weak Layer
Trend
Same
Problem #2 Comments
Persistent weak snow structure still present in northern aspects. Both basal facets and near surface facets from the clear weather.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable