Small human-triggered slides on Red Lake Peak

Location Name: 
Red Lake Peak
Region: 
Carson Pass Area
Date and time of avalanche (best estimate if unknown): 
Mon, 11/29/2010 - 13:30
Location Map: 
United States
38° 43' 7.1112" N, 119° 58' 54.2676" W
See map: Google Maps
US


Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain
Obvious avalanche path
Terrain Trap
Observation made by: Forecaster
Avalanche Observations
Avalanche Type: 
dry,slab,
Slope: 
37degrees
Trigger type: 
Snowboarder
Crown Height: 
Less than 1 ft
Aspect: 
North
Weak Layer: 
Storm Snow
Avalanche Width: 
30ft.
Terrain: 
Near Treeline
Elevation: 
9 320ft.
Bed Surface: 
Old Snow
Avalanche Length: 
200ft.
Number of similar avalanches: 
2
More detailed information about the avalanche: 

Snowboarders triggered these two small avalanches as they were descending the coulior/ramp in the photo. Each slide released under the feet of the snowboarder show triggered it and each snowboarder was able to traverse out above the slide as it moved downhill. The snowboarders were traveling down the slope one at a time. These slides released in complex terrain near yesterday's skier triggered avalanche and failed on the interface between the most recent storm snow and the old snow below it.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
Clear
Air temperature: 
Below Freezing
Wind Speed: 
Calm
Precipitation: 
Air temperature trend: 
Cooling
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: