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Several natural avalanches in Castle Lake area

Location Name: 
Castle Lake area
Region: 
Castle Lake
Date and time of avalanche (best estimate if unknown): 
Tue, 01/03/2017 - 8:00pm
Observation made by: 
Forecaster
Red Flags:
Recent avalanche activity
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain

Location Map

United States
41° 13' 12.5292" N, 122° 23' 20.0004" W
See map: Google Maps
US

Avalanche Observations

Details

Characteristics

Avalanche Type: 
Slab
Trigger type: 
Natural
Aspect: 
North
Elevation: 
6 000ft.
Terrain: 
Below Treeline
Weak Layer: 
Storm Snow
Bed Surface: 
Old Snow
Crown Height: 
1 ft
Avalanche Width: 
200ft.
Avalanche Length: 
500ft.
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: 
No
Precipitation: 
None
Accumulation rate: 
Air temperature: 
Below Freezing
Air temperature trend: 
Warming
Wind Speed: 
Calm
Wind Direction: 
Northwest