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Small, shallow wind slab avalanche

Location Name: 
Sun Bowl avalanche
Region: 
Mt. Shasta
Date and time of avalanche (best estimate if unknown): 
Fri, 02/24/2017 (All day)
Observation made by: 
Forecaster
Red Flags:
Recent avalanche activity

Location Map

United States
41° 22' 11.5644" N, 122° 12' 55.0872" W
See map: Google Maps
US

Avalanche Observations

Details

Not much is known about this avalanche. It was not there when I started my day at about 11am. It was there when I was leaving Bunny Flat at about 1600. Photo taken from the parking lot. Looked like a shallow, small wind slab. Trigger is unknown.

Characteristics

Avalanche Type: 
Slab
Trigger type: 
Unknown
Slope: 
35degrees
Aspect: 
Southeast
Elevation: 
8 700ft.
Terrain: 
Above Treeline
Weak Layer: 
Unknown
Bed Surface: 
Unknown
Crown Height: 
Less than 1 ft
Avalanche Width: 
100ft.
Avalanche Length: 
300ft.
Number of people caught: 
0
Number of partial burials: 
0
Number of full burials: 
0

Weather Observations

Details

Sun, clouds, light showers... very little wind.

Statistics

Cloud Cover: 
25% of the sky covered by clouds
Blowing Snow: 
No
Precipitation: 
None
Accumulation rate: 
None
Air temperature: 
Below Freezing
Air temperature trend: 
Static
Wind Speed: 
Calm
Wind Direction: 
West