Observation: Weber Canyon

Observation Date
12/27/2015
Observer Name
jg
Region
Uintas » Upper Weber Canyon » Weber Canyon
Location Name or Route
Weber Canyon
Weather
Sky
Clear
Wind Speed
Calm
Weather Comments
Cold but warming through the day. Temperature invertion with colder temps at lower elevations. Calm winds. High clouds rolling in at the end of the day.
Snow Characteristics
Snow Surface Conditions
Dense Loose
Snow Characteristics Comments

Surface faceting with more developed facets at lower elevations. Spotty and not as developed at higher elevations. Mostly supportable snow on skis and on the sled. Get off the skis or sled and you sink crotch deep.

Red Flags
Red Flags
Recent Avalanches
Poor Snowpack Structure
Red Flags Comments
Recent avalanches meaning several day ago.
Avalanche Problem #1
Problem
Persistent Weak Layer
Snow Profile
Aspect
Northwest
Elevation
9,600'
Slope Angle
27°
Comments

Traveled the north half of the compass from 7400-10K, slope angles to 30°.

Snowpit tests showed a weakness about 9" down failing with medium effort but without much energy and with average shear quality. ECT's failed on the basal facets with hard effort. My tests and travels were reflecting a stabilizing snowpack although tests were somewhat inconclusive. Deep slab instabilities call for respect and self control, you can get away with a lot but find that trigger and you and the entire snowpack are going for a ride.

Forecasted cold temps will begin to weaken the snow surface and may also drive the temperature gradient within the pack steeper.

I would call the danger moderate with pockets of considerable with high consequences if you trigger an avalanche.

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