Wind Slab Avalanche on Jakes Peak

Location Name: 
Jakes Peak
Region: 
West Shore Area
Date and time of avalanche (best estimate if unknown): 
Wed, 01/04/2017 - 17:00
Location Map: 
United States
38° 58' 3.18" N, 120° 7' 3.4464" 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: 
3 ft
Aspect: 
Northeast
Weak Layer: 
Storm Snow
Avalanche Width: 
75ft.
Terrain: 
Near Treeline
Elevation: 
9 100ft.
Avalanche Length: 
200ft.
More detailed information about the avalanche: 

Wind slab avalanche observed right off the top of Jakes.  Thought to have occurred sometime late Wednesday.  Debris was not visible and fully covered by new snow but crown was visible although still covered in by new snow and blowing snow.  Length was unknown but evidence of snow up against trees was downslope approximately 200'.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
None
Air temperature trend: 
Cooling
Wind Direction: 
West