Avalanche Activity on East Ridge Tamarack Peak

Location Name: 
East Ridge Tamarack Peak
Region: 
Mount Rose Area
Date and time of avalanche (best estimate if unknown): 
Tue, 02/28/2012 - 10:30
Location Map: 
United States
39° 18' 46.7748" N, 119° 54' 42.516" W
See map: Google Maps
US


Red Flags: 
Recent avalanche activity
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain
Obvious avalanche path
Observation made by: Professional Observer
Avalanche Observations
Avalanche Type: 
dry,slab,
Slope: 
35degrees
Aspect: 
North
Weak Layer: 
Storm Snow
Avalanche Width: 
50ft.
Elevation: 
9 300ft.
Bed Surface: 
Storm Snow
Avalanche Length: 
200ft.
More detailed information about the avalanche: 

Multiple small D1 slab avalanches on the East Ridge of Tamarack Peak.  Trigger thought to be natural cornice failures that caused the small wind slab avalanches.  Crown line depths up to 12'' deep.  Avalanches on North aspect, 9400', 35-40 degree slope angles, with efficient wind loading terrain.  Observed at 10:30am.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
None
Air temperature trend: 
Static
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: