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Nov. 21 Wind Slab Avalanche on north aspect of Green Butte

Location Name: 
Green Butte
Region: 
Mt. Shasta
Date and time of avalanche (best estimate if unknown): 
Mon, 11/21/2016 - 8:00pm
Observation made by: 
Forecaster
Red Flags:
Recent loading by new snow, wind, or rain

Location Map

United States
41° 22' 19.4268" N, 122° 12' 26.8092" W
See map: Google Maps
US

Avalanche Observations

Details

Remotely triggered wind slab avalanche on November 21st.

Characteristics

Avalanche Type: 
Slab
Trigger type: 
Snowmobiler
Slope: 
38degrees
Aspect: 
North
Elevation: 
9 400ft.
Terrain: 
Above Treeline
Weak Layer: 
Storm Snow
Bed Surface: 
Old Snow
Crown Height: 
2 ft
Avalanche Width: 
500ft.
Avalanche Length: 
800ft.
Number of similar avalanches: 
1
Number of people caught: 
0
Number of partial burials: 
0
Number of full burials: 
0

Weather Observations

Details

Statistics

Cloud Cover: 
Clear
Blowing Snow: 
Yes
Precipitation: 
None
Accumulation rate: 
None
Air temperature: 
Below Freezing
Air temperature trend: 
Warming
Wind Speed: 
Moderate
Wind Direction: 
Northwest