Observation Date
1/10/2025
Observer Name
Grainger, Anderson
Region
Salt Lake » Little Cottonwood Canyon » Tanners Gulch
Location Name or Route
Tanners
Weather
Sky
Clear
Wind Speed
Calm
Red Flags
Red Flags
Recent Avalanches
Poor Snowpack Structure
Red Flags Comments
Yesterday's solar radiation on the upper (SW, S, SSE) slopes and cliff bands of Tanner's caused numerous fairly voluminous wet-loose slides up to ~10,400'. In isolated under-cliff areas some of these triggered 2-4' deep slabs (Pics 1-4). For the most part the wet-loose debris did not gouge into old snow layers but some piles were solidly D2 and covered many sections of previous party's skin/ski tracks (possibly from the 8th?)
Overall the moderate-to-steep southerly aspects got cooked into a 1-3 cm breakable crust that may served as a hard, planar interface for tonight's storm snow to slide on depending on how well it bonds.
Further down-drainage there is evidence of small glides along the smooth rock slabs (Pic 5, 6). None of them extensive due to the concave terrain below them but always interesting to check out true "to the ground" avalanche pieces.
Comments
Cold high pressure has led to beautiful alpine travel conditions as well as a reminder that the current low sun angle affects steep solar slopes more than gentle ones (Good explanation in the link below).
Read more about sun angle
HERE :
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates