Observation Date
3/29/2016
Observer Name
mark white
Region
Salt Lake » Big Cottonwood Canyon » Willows
Location Name or Route
PC Ridgeline
Weather
Sky
Broken
Precipitation
Moderate Snowfall
Wind Direction
Southwest
Wind Speed
Light
Weather Comments
Broken skies in the AM with a pretty good snow storm from around 1:00 to 2:00pm, with lightning thunder and graupel, then some more clearing, and finally socking in again around 3:00pm.
Snow Characteristics
New Snow Depth
20"
New Snow Density
Medium
Snow Surface Conditions
Powder
Damp
Snow Characteristics Comments

20 inches of new snow with a density inversion at the bottom, The first 3 or so inches where light density, then there was a denser layer of snow about a foot deep, then about 5 or 6 inches of light density topping it off. The snow on the S facing was getting damp by noon and was like paste on our exit at 3:00pm, Did note some green housing during the day as well.

Comments

Headed up to West Monitor via Willow Heights thought the DP would already have a trail in but to my surprise they hadn't. Trail breaking was a bit of a labor today, mostly because of the depth and the density inversion at the bottom of the storm snow. Once we got to WM had already decided we were probably not going to ski it because the density inversion was creating a weak layer under the denser snow on top, and after noting a recent avalanche in the center mid slope, we decided to ski the S facing Hour Glass before the sun dampened it, the sun had already got to the steeper portion at the bottom and had dampened the surface, making the break out of there even more laborious. Decided to switch aspects to NW and skied Wills Hill which still had deep dry snow and was non wind affected. We did not encounter a lot of avalanche activity in our travels except the one in WM, but the density inversion kept us out of the steep N facing terrain. South will be crusted in the AM and I would suspect W will be too, I think N, NE survived the heat today but may be short lived tomorrow if the sun comes out.

Photos: cornice falls and sluffing in West Monitor, trench warfare breaking trail.

I would think any density inversions and wind slabs will most likely be settled out tomorrow, and the biggest concern will be wet activity on slick bed surfaces

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