Mt. Judah Observations

Location Name: 
Mt. Judah
Region: 
Donner Summit Area
Date and time of observation: 
Thu, 12/16/2010 - 14:30
Location Map: 
United States
39° 18' 21.06" N, 120° 18' 58.32" W
See map: Google Maps
US


Red Flags: 
Observation made by: Professional Observer
Snowpit Observations
More detailed information about the snowpack: 

The 12/14 rain crust was 8-10'' thick in the Mt. Judah area at 8000'.  It was very strong showing no signs of facet growth and didn't show any weakness with stability tests.  There are still some lingering stability test failures within the storm snow on a graupel layer. This layer did not show any signs of propagation potential with other tests and no other informal observations showed any concern with this layer besides sluffing in steeper terrain.   

 

Photo:  Surface hoar was on all aspects and elevations in this area well into the mid afternoon.  In protected, below treeline areas the SH was up to several cm's in size.  With the forecasted storm tonight, light winds with cold temps, this SH layer will likely be buried and become a potential weak layer.  

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Snowpit videos (tests, etc): 

judah2010 12 16 003

Weather Observations
Blowing Snow: 
No
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Light
Precipitation: 
None
Air temperature trend: 
Static
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: