Observation Date
11/28/2017
Observer Name
mark white
Region
Salt Lake » Little Cottonwood Canyon » Alta Periphery
Location Name or Route
Alta Perimeter
Weather
Sky
Clear
Wind Direction
Southwest
Wind Speed
Moderate
Weather Comments
Clear and cool with SW winds ramping up later in the day.
Snow Characteristics
New Snow Depth
1"
New Snow Density
Low
Snow Surface Conditions
Powder
Melt-Freeze Crust
Rain-Rime Crust
Snow Characteristics Comments

I would've checked the dust on crust drop box but there isn't one. there was a uniform inch of new light density snow from yesterdays little impulse with either a rain rime crust or a melt freeze crust, both mostly supportable underlying it.

Red Flags
Red Flags
Poor Snowpack Structure
Comments

Dug quick pit at 10,300ft north facing and protected, same thing I've been seeing for a few weeks now, but the dirty graupel layer is becoming stronger and the depth hoar at the bottom of the pack remains the weakest link. Once again I could not isolate a column without it failing on the facets at the ground on a 35 degree slope. With possible cold clear nights in the near future I would expect to see the surface snow weaken and the crusts break down as time goes on, but I still consider the base of the snow pack the weakest layer, this is mainly above 9600ft on N, NE slopes, everything else just needs a good dose of snow.

Photos: Snow pit, large grain facets from the failure plane, ski penetration on the surface on shady protected north which seems likely to get weaker as time goes on if we don't get snow.

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