Observation: Cardiff Fork

Observation Date
3/22/2013
Observer Name
Greg Gagne
Region
Salt Lake
Location Name or Route
Cardiff Fork
Weather
Sky
Obscured
Precipitation
Light Snowfall
Wind Direction
North
Wind Speed
Light
Weather Comments
Morning featured reasonable visibility with virtually no wind atop Cardiff Peak. Some light snowshowers. Skiing out at 1300 featured moderate winds from N/NW along ridgelines and heavier S2 snowshowers. -10 C.
Snow Characteristics
New Snow Depth
4"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments

Total snowfall since Wednesday in Cardiff is about 20-40 cms (8-16") with varying amounts with respect to elevation and wind exposure. Was finding a super-thin zipper crust on W aspects from Thursday afternoon sun (now buried anywhere from 15-30 cms down), but even solar aspects were skiing quite well exiting at 1300.

Comments

Instabilities I noted from Thursday were largely absent today - no cracking in the new snow, and whatever wind deposits I could find from Thursday am winds were not sensitive. The only activity I could manage were new snow loose sluffs in the top 15 cms (6"). But the new snow was not acting as a cohesive slab, so these were not breaking out widely. The largest sluff I ski cut ran approximately 50 meters (~150').

For the most part quite poor visibility so I never managed to get a good look at other terrain for any evidence of avalanching.

Today seemed in the very "Manageable Moderate" category with ski cuts an effective mitigation tool. The primary hazard I identified was loose snow sluffs on steeper aspects. Otherwise things are looking good:

  • New snow since Wednesday has come in right-side up and the initial warm, dense snow bonded well to the old snow surface.
  • No new snow instabilities observed today
  • Although I did not get a look at enough of these types of slopes, wind loaded slopes from Thursday do not seem reactive to ski cuts.

Assuming we do not have to deal with warming from the sun, in the short term, the wildcard that could change things would be an increase in wind or period of heavy snowfall as the new snow on Friday is very light density and would likely not support any rapid loading.

I hear the A-team was in Cardiac, so look forward to reading reports from across the drainage.