Large Surface Hoar

Location Name: 
Prosser Hill
Region: 
Donner Summit Area
Date and time of observation: 
Thu, 12/16/2010 - 16:30
Location Map: 
United States
39° 22' 18.9984" N, 120° 11' 39.6672" W
US


Red Flags: 

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

Very large (1/2"- 3/4") surface hoar crystals

Weather Observations
Blowing Snow: 
No
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Precipitation: 
None
Air temperature trend: 
Cooling
Wind Direction: 
Accumulation rate: 
None
More detailed information about the weather: 

Dense icy fog in valley, at peak clear with high clouds