Observation: Butler Basin

Observation Date
12/7/2019
Observer Name
mark white
Region
Salt Lake » Big Cottonwood Canyon » Butler Fork » Butler Basin
Location Name or Route
Butler Fork, upper Butler Basin
Weather
Sky
Scattered
Wind Direction
Southwest
Wind Speed
Moderate
Weather Comments
Warm with SW winds, partly cloudy skies and somewhat humid
Snow Characteristics
Snow Surface Conditions
Dense Loose
Damp
Snow Characteristics Comments
Dense loose on sheltered shady slopes, damp on S,SE, SW, boot deep ski penetration.
Red Flags
Red Flags
Recent Avalanches
Wind Loading
Poor Snowpack Structure
Comments
First time in upper Butler Basin this year, I was finding old avalanche crowns scattered all over the N, NE steeper ridge lines in the upper basin, from avalanches during last weeks storm. Since I hadn’t been there all year I took the time to dig a quick pit on a sheltered, shady E facing slope at 9000ft. There were a couple crust facet sandwiches that formed early season but not as bad as the higher elevation N facing terrain, but with settlement the slab has become a stout one finger slab with only the top 4 to 5 inches on top being fist. The wind seemed to be transporting snow on the high ridge lines and was also creating wind skins down lower in the drainage.
photos: old avalanches from last week and snowpit
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable