Unstable snowpack

Primary tabs

Location Name: 
Skier's left peace sign apron
Williams Lake Area
Date and time of observation: 
Wed, 02/05/2020 - 13:30
Location Map: 
United States
36° 34' 10.3368" N, 105° 25' 49.5372" W

Red Flags: 
Recent loading by new snow, wind, or rain
Obvious avalanche path

Observation made by: Public
Snowpit Observations
More detailed information about the snowpack: 

10,800ft West aspect skier's left peace sign apron.  28 degree slope.  30cm of new snow on a knife hard crust with near surface faceting below the crust which was the reactive layer.  ~150cm depth.  depth hoar on the ground.  What I figure is a decomposing slab in the lower half of the snowpack under a few mid layer crusts.  Shovel Shear with weak bonding between new and old snow.  CT 8 resistant planar shear within the new snow ~ 20cm down (2/3 of the new snow).  CT12 sudden collapse on small grained near surface facets below the crust.  I presume the crust was a wind crust as it was irregular through the pit and on the south side of the path which I have found to usually be wind loaded.  ECTV @~35cm under the crust.  PST 12/100 sudden collapse End.

Snowpit or crown profile photo or graph: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
50% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 

Today was a chilly day.  The sun was peeking out.