Andesite Snowpack Observations

Location Name: 
Andesite Ridge
Region: 
Donner Summit Area
Date and time of observation: 
Mon, 03/13/2017 - 13:00
Location Map: 
United States
39° 20' 32.0352" N, 120° 21' 6.6816" W
See map: Google Maps
US


Red Flags: 
Rapid warming
Observation made by: Guide at Tahoe Mountain School
Snowpit Observations
More detailed information about the snowpack: 

A partial refreeze in this area with open N-NE-E aspects mostly firm before 10am.  Snow surface conditions in treed areas were punchy, wet and sticky with no signs of any refreeze overnight.  Snowpack tests on a shaded NW/N aspect showed little results with a well bonded and consolidated snowpack.  By 1pm, south aspects had lost ski supportability below 7500' in open and treed terrain.  Roller balls, poor ski conditions, and warm temperatures existed for the afternoon. 

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
Clear
Air temperature: 
Above Freezing
Wind Speed: 
Calm
Precipitation: 
Air temperature trend: 
Warming
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: