Deep avalanche on Hidden Peak

Location Name: 
Hidden Peak
Region: 
West Shore Area
Date and time of avalanche (best estimate if unknown): 
Fri, 02/18/2011 - 12:00
Location Map: 
United States
38° 59' 7.8" N, 120° 7' 53.8896" 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: Forecaster
Avalanche Observations
Avalanche Type: 
dry,slab,
Slope: 
38degrees
Trigger type: 
Natural
Crown Height: 
4 ft
Aspect: 
Northeast
Weak Layer: 
Other
Avalanche Width: 
200ft.
Elevation: 
9 000ft.
Bed Surface: 
Other - explain below
Avalanche Length: 
300ft.
More detailed information about the avalanche: 

This slide most likely occured during the day on Friday (2-18-11). The crown, flanks, bed surface, and debris had been covered by 2-3 ft of snow. This slide most likely occurred within the new snow and measured 3-5 ft in depth.

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