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Natural avalanche below Redbanks

Location Name: 
Redbanks
Region: 
Mt. Shasta
Date and time of avalanche (best estimate if unknown): 
Sat, 12/10/2016 - 8:05pm
Observation made by: 
Forecaster
Red Flags:
Recent avalanche activity
Recent loading by new snow, wind, or rain

Location Map

United States
41° 23' 54.924" N, 122° 12' 3.1788" W
See map: Google Maps
US

Avalanche Observations

Details

Poor photo quality, but avalanche visible below Redbanks as dark spot. Occured within last couple days, today the first day of above treeline visibility. Other naturals occured off Casaval Ridge and Green Butte, south and east aspects.

Characteristics

Avalanche Type: 
Slab
Trigger type: 
Natural
Slope: 
38degrees
Aspect: 
South
Elevation: 
12 000ft.
Terrain: 
Above Treeline
Weak Layer: 
Unknown
Bed Surface: 
Old Snow
Crown Height: 
1 ft
Avalanche Width: 
200ft.
Avalanche Length: 
500ft.
Number of similar avalanches: 
2
Number of people caught: 
0
Number of partial burials: 
0
Number of full burials: 
0

Weather Observations

Details

Windy

Statistics

Cloud Cover: 
25% of the sky covered by clouds
Blowing Snow: 
Yes
Precipitation: 
None
Accumulation rate: 
Air temperature: 
Below Freezing
Air temperature trend: 
Cooling
Wind Speed: 
Strong
Wind Direction: 
Northwest