Snowpit on Mt. Judah

Location Name: 
Mt. Judah
Region: 
Donner Summit Area
Date and time of observation: 
Thu, 02/25/2010 - 12:30
Location Map: 
United States
39° 18' 9.5652" N, 120° 18' 53.4276" W
See map: Google Maps
US


Red Flags: 
Recent avalanche activity
Observation made by: Forecaster
Snowpit Observations
More detailed information about the snowpack: 

Unconsolidated snow on top of a firm supportable crust in most areas. The sheltererd northerly aspects had 2-4 in of soft snow on the surface while other aspects only had 1-2 in. Oven sized cornices and ski cuts on steep wind-loaded and non-wind-loaded test slopes did not result in any avalanache activity. Car size cornice pieces dropped onto the wind-loaded slopes near the ridgeline did cause avalanches. Some of these stepped down into older weaknesses and ran about 800 ft downhill. Cornices could still be broken by a skier or snowboarder and they propagated for 3-10 ft when broken.

Snowpit or crown profile photo or graph: 
Any other comments about the observation or links to outside pages that have more info on the observation: 

 

Weather Observations
Blowing Snow: 
No
Air temperature: 
Above Freezing
Wind Speed: 
Light
Precipitation: 
Air temperature trend: 
Static
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: