Observation: Big Cottonwood Canyon

Observation Date
12/29/2015
Observer Name
Evelyn
Region
Salt Lake » Big Cottonwood Canyon
Location Name or Route
Spruces and off the Guardsman road
Weather
Sky
Broken
Weather Comments
Broken skies becoming overcast. Cold temperatures, but no wind and occassional sun made it reasonable.
Snow Characteristics
New Snow Depth
1"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments

Really seemed to be just a trace of new snow, landing on a thin ice crust on southerly facing slopes, and on soft powder on shady slopes.

Comments

Mid and upper elevation northerly facing snow pack is well documented in the Salt Lake mountains, so sometimes I like to start looking at more of a variety of elevations and aspects. Sometimes just to confirm general opinions on snow stability and structure.

Pit profile and photo below of northerly facing slope, 7,500'. Facets near the ground seemed to be strengthening, along with the slab.

Pit profile and photo below from a southerly facing slope, 9,200', off the Guardsman road. Layer of most interest is the new, thin crust just below the surface, though I suspect it will change as it gets more sun this week and become stouter. (crust is much thinner than it came out in the pit profile - my error) But any crust is worth noting - it could get buried if the snow this week adds up to 4 to 6". I'm also interested in looking at more of the southeasterly through south through westerly facing slopes, especially at the higher elevations. While generally stronger than the shady slopes, we tend to have less information on those aspects.

Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate