Observations from South of Red Lake

Location Name: 
South of Red Lake
Carson Pass Area
Date and time of observation: 
Thu, 12/12/2013 - 12:45
Location Map: 
United States
38° 41' 29.7312" N, 119° 58' 13.1232" W

Red Flags: 
Whumphing noises, shooting cracks, or collapsing

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

Widespread skier triggered whumphing and cracking occurred on northerly aspect below treeline slopes in this area. Over 20 whumphs were triggered on the sub 30 degree slopes we choose to travel today. The well developed Dec 7 facet layer near the base of the snowpack was confirmed in snowpit tests as the collapsing weak layer. Cohesiveness and slab properties of the overlying recent storm snow are continuing to increase. There are no indications that instability evident in the regional snowpack will decrease anytime soon.

Snowpit or crown profile photo or graph: 
Snowpit videos (tests, etc): 

20131212 South of Red Lake 006

Weather Observations
Blowing Snow: 
Cloud Cover: 
Air temperature: 
Above Freezing
Wind Speed: 
Air temperature trend: