Observation: Spring City Canyon

Observation Date
01/15/2016
Observer Name
Kendall/Kobernik

Region:

Location Name or Route
Spring City Canyon
Weather
Sky
Obscured
Precipitation
Light Snowfall
Wind Direction
Northwest
Wind Speed
Moderate
Weather Comments
We left the warm valley and rode up into the clouds today. The cloud base was around 7800ft with white out conditions and moderate wind gusts on the ridges. Light snow fell most of the afternoon.
Snow Characteristics
New Snow Depth
6"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments

We found 4-8" of new snow between 9000 -10000 ft. The new snow fell on a variety of surfaces from crusts (wind and sun) to near surface facets. The low density new snow was unreactive on these surfaces in our location. We stayed on slopes less than 35 degrees and found good powder conditions in the trees. We noticed some minimal snow transport by the gusts on the lower ridges but assume it was more pronounced at the peaks. The upper elevation exposed terrain held a stout crust under the new snow and visibility was poor. 

Red Flags
Red Flags
Wind Loading
Poor Snowpack Structure
Red Flags Comments
We were expecting to find more instabilities at the new/old snow interface given the condition of the surface snow (NSF) on which the new snow accumulated. If the wind picks up tonight the additional loading of the near surface facets could create instabilities at this new/old snow interface.
Avalanche Problem #1
Type
Wind Slab
Problem #1 Comments

I would be suspicious of slopes where wind has deposited snow off the upper elevation ridges onto the easterly facing slopes.  

Video
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Snow Profile Coordinates