Observation: Cardiff Bowl

Observation Date
2/1/2016
Observer Name
white, kobernik
Region
Salt Lake » Little Cottonwood Canyon » Cardiff Bowl
Location Name or Route
LCC
Weather
Precipitation
Light Snowfall
Wind Direction
Southeast
Wind Speed
Moderate
Weather Comments
Cold with light snow showers, wind was manageble down low, once up high wind was gusting from the SE, NE (hard to tell) in the strong catagory, almost knocked us of the skin track a few times
Snow Characteristics
New Snow Depth
3"
New Snow Density
Low
Snow Surface Conditions
Powder
Dense Loose
Rain-Rime Crust
Snow Characteristics Comments

The new snow down out of the wind was light density, but most of the snow we encountered walking up Pole Line Pass was inverted by the wind, denser on top light density below, there was also somewhat of a rime crust forming on the snow surface down low out of the wind at lower elevation.

Red Flags
Red Flags
Wind Loading
Cracking
Poor Snowpack Structure
Comments

The plan was to head up to Pole Line Pass and drop into Cardiff then head down canyon and hopefully get out of the strong wind. The wind gusts started cranking in the strong category as soon as we started to ascend the ridge that leads you to Cardiff Bowl. When we got to the flats under Cardiff bowl the wind was really blasting and moving allot of snow. We headed toward British Bowl which is the steep roll-over facing a little SW right off the flats, only time I've really seen this slope active is when we have the dreaded easterly winds, upon approach we remotely triggered a wind slab on the steep upper section of the slope. A spider web of cracks were apparent but not much movement of the slab because down lower on the slope the slab wasn't as thick. Inspection of the fractures showed a 8 to 10 inch dense wind slab that broke on light density snow that the slab formed on top of. After standing there trying to get a few photos in the middle of a ground blizzard we decided it was time to bail on our Cardiff plans, and pulled the plug.

Photos: remotely triggered wind slab, crown, wind blasting on the bench.

I think the wind slabs will settle out fairly quick but after seeing that much snow transported by the wind its hard to go with anything but considerable.

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