Cornice collapse and avalanche on Tamarack Peak

Location Name: 
Hourglass Bowl
Region: 
Mount Rose Area
Date and time of avalanche (best estimate if unknown): 
Sat, 03/26/2011 - 12:00
Location Map: 
United States
39° 19' 8.4972" N, 119° 55' 20.568" W
See map: Google Maps
US


Red Flags: 
Recent loading by new snow, wind, or rain
Observation made by: Public
Avalanche Observations
Trigger type: 
Skier
Aspect: 
Northeast
Avalanche Width: 
150ft.
Terrain: 
Above Treeline
Elevation: 
9 800ft.
Avalanche Length: 
200ft.
More detailed information about the avalanche: 

Skier caused cornice collapse while traversing Hourglass Bowl.  Cornice broke 5 feet from edge and extended 150' along the ridge.  Refrigerator sized and smaller cornice chunks travelled about 200' downslope in the center of the bowl.

Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Strong
Precipitation: 
Snow
Air temperature trend: 
Static
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: