Avalanche on Silver Peak

Location Name: 
Silver Peak
Region: 
Cabin Creek, Deep Creek, or Pole Creek Area
Date and time of avalanche (best estimate if unknown): 
Sun, 11/21/2010 - 04:00
Location Map: 
United States
39° 13' 25.3848" N, 120° 14' 32.208" W
See map: Google Maps
US


Red Flags: 
Recent loading by new snow, wind, or rain
Obvious avalanche path
Observation made by: Forecaster
Avalanche Observations
Avalanche Type: 
dry,slab,
Slope: 
37degrees
Trigger type: 
Natural
Aspect: 
Northeast
Weak Layer: 
Other
Terrain: 
Near Treeline
Elevation: 
7 900ft.
Bed Surface: 
Other - explain below
Number of similar avalanches: 
2
More detailed information about the avalanche: 

Some debris on the uphill side of trees (see photo) indicated that at least two avalanches occurred on steep, wind-loaded, NE facing slopes on Silver Peak. The crowns had filled in with new snow since the slope slid. Our best estimate is that these slides occurred late Saturday night or early Sunday morning and were wind slabs. Bed surface and weak layer are unknown.

Avalanche Photos: 
Weather Observations
Air temperature: 
Precipitation: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: