Observation: Cardiff Fork

Observation Date
3/15/2016
Observer Name
mark white
Region
Salt Lake » Big Cottonwood Canyon » Cardiff Fork
Location Name or Route
Cardiff Fork
Weather
Sky
Overcast
Precipitation
Light Snowfall
Wind Direction
Northwest
Wind Speed
Light
Weather Comments
Moderate snowfall in the AM, a little better visibility around noon, then closing back in and more snowfall by 2 pm. Wind was moderate on the high ridge line, not bad down in the drainages.
Snow Characteristics
New Snow Depth
12"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments

About foot of new snow this morning, maybe 14 on Cardiac Ridge when I got there, dropping to 6 inches at the mine in Cardiff around 8900ft, and 3 inches at the Doughnut Falls. Seven inches of light density cold smoke sitting on 4 to 5 inches of higher density snow, a perfect combination.

Comments

Travel today was from the Alta Guard to Cardiff Bowl SE facing, East Hellgate SE facing, then up over Cardiff Peak with entry into Cardiff Fork through the Key Hole N facing, Cardiac Ridge, Ivory Flakes with the exit out BCC. Skied a couple runs on SE facing to start the day, snow was well bonded on everything except the steepest terrain, did experience some sluffing in Cardiff Bowl but it didn't seem to want to run on the old frozen surface it mostly stayed in the new snow. Did not really come across any wind affected snow on the S facing, no wind slabs no slides. Once I moved on to the N end of the compass I was also getting some long running sluffs in steep terrain with cornice drops but these for the most part were running in the new snow also. On my entry run into Cardiff Fork through the Key Hole, N facing 37 degree slope I did manage to pull out a soft slab that ran on the old snow surface but the new snow was so light that it did not pack much of a punch and quit moving as soon as it hit lower angle terrain. I did speak with a couple guys that got a soft slab to release on top of Cardiac Ridge but it also stopped once it hit lower angle terrain. I've been out of town for 10 days so I decided to take a look at the weak layers that Mark and Ev saw the other day in Cardiff, they did not seem very reactive and in my opinion would need a much larger load than a foot of light density snow to become reactive, a large wind load or a lot more snow might do it.

Photos: sluffing on the N facing and the soft slab I released in the Key Hole, sorry about the photo quality broke my camera in Canada and had to use the phone.

Things seemed fairly stable today, there are places on the high wind exposed ridge lines were you could trigger a wind slab but I would think they will settle out with time. If we get allot of wind transport or a lot more snow things may become suspect but if not moderate seems like the call.

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