Mt. Judah Observations

Location Name: 
Mt. Judah
Region: 
Donner Summit Area
Date and time of observation: 
Fri, 12/24/2010 - 14:00
Location Map: 
United States
39° 17' 56.94" N, 120° 18' 50.616" W
See map: Google Maps
US


Red Flags: 
Recent loading by new snow, wind, or rain
Observation made by: Professional Observer
Snowpit Observations
More detailed information about the snowpack: 

Roller ball activity on all aspects below 7300'.  Sun crusts and wet heavy snow on all solar aspects in the early afternoon.  Shaded aspects still holding some good unconsolidated snow but has deteriorated over the last few days with the warmer temps and some wind affect.  Winds keeping higher elevations feeling cooler and moving snow and building out fresh cornices.  These cornices were very reactive and easy to kick and get to fall off on the slopes below.  Had some small minor cracking along ridgelines in highly wind loaded terrain.  Didn't get any propagation with cornice drops, ski cutting or stabilty tests. 

Photo showing wind loading and cornice development on the Lincoln/Anderson Ridgeline.

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Moderate
Precipitation: 
None
Air temperature trend: 
Warming
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: