NE Aspect 12,200'

Location Name: 
NE Aspect 12,200'
Williams Lake Area
Date and time of observation: 
Sun, 12/04/2016 - 11:30
Location Map: 
United States
36° 33' 4.6548" N, 105° 26' 23.9892" W

Red Flags: 
Whumphing noises, shooting cracks, or collapsing

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

The snowpack is surprising supportable for travel on skis, with a couple of inches of low density powder on top that makes travel enjoyable.  Above Treeline, winds have scoured most ridgetops except for N -NE - E aspects. Winds were starting to pick up in the afternoon out the West with small wind slabs forming above treeline.   Base depth above treeline is typically in the 90cm to 105cm range in areas that haven't been scoured by the wind.   

Video 1: Extend Column Test from 12,200' NE aspect 32 degree slope. (ECTPV)

Video 2: Persistent Slabs

Video 3: Propagation Saw Test PST 18/115 End

Photo 1:  Snowpit with a better photo of the structure we've been seeing.  

Snowpack photos: 
Snowpit videos (tests, etc): 

ECT 12/4/16 12,200' NE Aspect

12/4/16 Snowpack Structure 12,200' NE Aspect

PST 12/4/16

Weather Observations
Blowing Snow: 
Cloud Cover: 
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: