Observation: Raymond Peak

Observation Date
1/3/2015
Observer Name
Greg Gagne
Region
Salt Lake » Big Cottonwood Canyon » Raymond Peak
Location Name or Route
Mt Raymond
Weather
Sky
Overcast
Precipitation
Light Snowfall
Wind Direction
Northwest
Wind Speed
Moderate
Weather Comments
-9C with Moderate to Strong gusts out of the NW above about 9000'. Some periods of S-1 snowfall.
Snow Characteristics
New Snow Depth
1"
New Snow Density
Medium
Snow Surface Conditions
Powder
Dense Loose
Faceted Loose
Wind Crust
Melt-Freeze Crust
Snow Characteristics Comments

About 1-2 cms new snow during our morning tour. NW winds were transporting some snow onto leeward aspects, with some cross-loading noted as well. Overall, despite the winds, we were finding little wind loading apart from some fresh wind skins up to 1 cm at most.

Settlement cones easily exceeding 30 cms (1')

HS 90 cms.

Ski pens 10 - 15 cms.

Still finding some surface hoar in drainage bottoms, but wind destroyed this layer above 9,000'. Widespread near-surface faceting outside of wind-affected terrain.

Red Flags
Red Flags
Poor Snowpack Structure
Snow Profile
Aspect
Northwest
Elevation
9,900'
Comments

The combination of moderate to strong NW winds after the strong E winds earlier this week reminded me of the joke about the snow never melting in Wyoming, it just blows from one side of the road to another.

Dug a few pits on NW aspects between 9,500' and 10,000' and was finding a generally thin snowpack with depths typically less than a meter, and the faceted snow and depth hoar down near the ground is weaker than in deeper snowpack areas, especially the upper Cottonwoods. The stout, P-hard wind slabs on West aspects from the East winds earlier this week were only cracking locally around skis, but they are capping a weaker decomposing fragments.

Test results:

  • ECTX
  • CT15 - CT20 Q2 in faceted snow both above and below the rain/rime crusts down 45 cms.

Came away with the following conclusions:

  • Snowpack on upper elevation West aspects is generally thin and weaker with poor structure.
  • Am finding weaker mid-pack facets where the rain/rime/temperature crusts are thicker.
  • Storm slab from Christmas week storm as well as Easterly wind event is currently lacking energy. (Bruce's cat laying on a couch analogy.)

From my travels this past week in LCC/BCC as well as Millcreek, am finding an overall snowpack that is currently stable. (But with poor structure.)

Upper elevation slopes are largely wind affected or crusted, however sheltered, mid-elevation slopes are still holding soft settled snow.

Settlement cones on steeper aspect.

The storm along the horizon looked juicy this morning, but only 1-2 cms at most.

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