Observation: Brighton

Observation Date
11/26/2020
Observer Name
Gagne/Duvernay
Region
Salt Lake » Big Cottonwood Canyon » Brighton
Location Name or Route
Brighton Backcountry
Weather
Sky
Broken
Precipitation
Light Snowfall
Wind Direction
Northwest
Wind Speed
Light
Weather Comments
Very light northerly winds. Periods of light snowfall in the morning.
Snow Characteristics
New Snow Depth
4"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
10-15 cms of very-low density snowfall from overnight. Could get some minor sluffing on the steepest of slopes.
Comments
Travel today was throughout the Brighton backcountry (Dog Lake/ Pioneer Ridge/ Pioneer Peak/ Millicent.). HS is 45-60 cms (18-24") and the snowpack still has enough structure to provide supportable travel and riding conditions. Despite the thin snowpack, there is some variability and in thinner/rocky areas the snowpack is quite weak and unsupportable (Adam Bellamomy noticed this in Cardiff Fork as well).
The top ~30-45 cms of the snowpack is continuing to weaken and turn to facets. We were also finding the thermal crust that formed about 7-10 days ago on almost all aspects to begin to deteriorate as well. For now, none of this is a problem, may be so once we do put a load of new snow on top.
Not enough new snow and/or wind to increase the avalanche danger, and solid Low on all aspects and elevations. (Though wouldn't be surprised to find a few tiny pockets of fresh wind drifts along 11,000 ridges.)
As my partner noted today, Low avalanche danger, Extreme hazard of hitting rocks!
Photos:
- Faceted grains. These are angular grains that are loose and weak.
- Snowpit showing top 45 cms snowpack beginning to weaken.
- Bring your rock skis.
- An idea of the thin coverage in alpine.
Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
Low