Andesite Peak Observations

Location Name: 
Andesite Peak
Region: 
Donner Summit Area
Date and time of observation: 
Fri, 02/24/2017 - 10:45
Location Map: 
United States
39° 21' 0.072" N, 120° 21' 53.928" W
See map: Google Maps
US


Red Flags: 
Whumphing noises, shooting cracks, or collapsing
Observation made by: Educator at Donner Summit Avalanche Seminars
Snowpit Observations
More detailed information about the snowpack: 

Only sign of instability today was a small collapse (that we could not duplicate on similar terrain) during our approach to this location.  Why this isolated piece of snow collapsed is unkown (buried tree?)  Two shear planes identified in the upper 30 cm of the snowpack but no sign of propagation on these with either ECT or PST.  Cold, clear, calm most the morning.  Soft surface snows made for fine skiing.  Measured with NASTC L2 class.

Snowpit or crown profile photo or graph: 
Weather Observations
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Calm
Air temperature trend: 
Static