Observations from Andesite Ridge

Location Name: 
Andesite Ridge
Region: 
Donner Summit Area
Date and time of observation: 
Sun, 12/22/2013 - 09:45
Location Map: 
United States
39° 20' 37.572" N, 120° 21' 10.656" W
See map: Google Maps
US


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

This area has shown evidence of increasing stability. Triggering collapse of the Dec 7 facet layer has become difficult. Propagation tests indicate that if collapse can be triggered, propagation along the weak layer remains possible. A strong temperature gradient remains in place across the height of the Dec 7 facet layer. These facets remain well developed and striated, despite rounding in the major layers of the snowpack both above and below the Dec 7 layer.

Snowpit or crown profile photo or graph: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Moderate
Precipitation: 
Air temperature trend: 
Warming
Wind Direction: 
Northeast
Accumulation rate: 
More detailed information about the weather: