Negro Canyon Observations

Location Name: 
Negro Canyon
Region: 
Donner Summit Area
Date and time of observation: 
Sun, 11/28/2010 - 14:10
Location Map: 
United States
39° 20' 41.028" N, 120° 17' 37.104" 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: 

NW winds scouring cornices and upper starting zones and loading S-SE-E slopes and gullies.  Some minor cracking in wind loaded S-SE gullies only very near ridgelines.  Droped many large cornice blocks on NE-E slopes with no results.  The snowpack is settling out with a mostly right side up snowpack at this location and elevation. 

 

Photo:  Wind scouring of N/NE starting zones and cornices from moderate NW winds.

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Yes
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
None
Air temperature trend: 
Warming
Wind Direction: 
Northwest
Accumulation rate: 
None
More detailed information about the weather: