Observation: Cardiff Pass

Observation Date
11/28/2022
Observer Name
Zimmerman-Wall
Region
Salt Lake » Little Cottonwood Canyon » Cardiff Pass
Location Name or Route
Cardiff Pass
Weather
Sky
Obscured
Precipitation
Light Snowfall
Wind Direction
West
Wind Speed
Moderate
Weather Comments
Increasing clouds, wind, and snow starting at 0900.
Snow Characteristics
New Snow Depth
2"
New Snow Density
Low
Snow Surface Conditions
Dense Loose
Melt-Freeze Crust
Snow Characteristics Comments
Variety of surface conditions. Notable crusts on solar aspects from prolonged high pressure. Wind textured and rounded pillows in isolated areas. Soft patches of turnable new snow over faceted snow.
Avalanche Problem #1
Problem
Normal Caution
Trend
Increasing Danger
Problem #1 Comments
No problems observed but the storm in the forecast will change this scenario if totals hit the high end of 16-18" with 1" of water and some wind.
Snow Profile
Aspect
East
Elevation
9,700'
Slope Angle
12°
Comments
Goal was to get out to see how the storm was coming in and the myriad surfaces the new snow would be falling on. Lots of variable wind and some cross loading due to terrain channeling. No instabilities other than subtle cracking on newly developed wind deposits.
The old snow surface is beat up in many exposed areas, and the skiing is a solid 2 stars on solar aspects. There is a pronounced layer of 1mm surface facets in protected polar terrain that could become active with the new load from snow and wind. This layer is up 35cm thick after the prolonged drought. The location of my snow profile was in an area where surface hoar would quickly be destroyed by wind and I did not find any.
The overall height of snow is 100-150cm above 9500' and this is well above ground roughness in many locations. Where the surface facets are continuous across large areas it may become possible that avalanches will be well connected during and after this storm if it produces forecasted amounts, particularly in wind loaded areas. With only an inch of water it may not be enough to tip the scales, but incremental loading over the next 5-7 days might just do it?
Left the field by 1300.
Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
None
Coordinates