Between Leavitt & Ski Lake

Location Name: 
Between Leavitt & Ski Lake
Region: 
BWRA
Date and time of avalanche (best estimate if unknown): 
Sat, 03/03/2018 - 16:29
Location Map: 


Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain
Obvious avalanche path

Observation made by: Avalanche Specialist
Avalanche Observations
Avalanche Type: 
Dry
Slab
Slope: 
33degrees
Trigger type: 
Natural
Crown Height: 
3 ft
Aspect: 
Northwest
Weak Layer: 
Storm Snow
Avalanche Width: 
50ft.
Terrain: 
Above Treeline
Elevation: 
9 900ft.
Bed Surface: 
Old Snow
Avalanche Length: 
80ft.
Number of similar avalanches: 
5
Number of people caught: 
0
Number of partial burials: 
0
Number of full burials: 
0
Did the avalanche hit a building, vehicle, or structure?: 
No
More detailed information about the avalanche: 

On a Northwest aspect at 9900' an SS-N-R2-D2 avalanche released towards the end of the large storm cycle. Southeast winds had loaded this NW aspects on a relatively low angle 33 degree slope. A small amount of blown-in snow was visible on the bed sruface leading to the end of storm timeline. The Leavitt Cirque had a larger SS-N-R3-D3 avalanche wrap-around crown with debris low in the runout zone. This is clearly a very large slide path & is a great indicator slope of the avalanche potential.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
Clear
Air temperature: 
Above Freezing
Wind Speed: 
Calm
Precipitation: 
None
Air temperature trend: 
Warming
Wind Direction: 
West
Accumulation rate: 
None
More detailed information about the weather: 

Weather has been warm & clear with a calm westerly breeze. Sun & temps nearing 30 degrees. The large accumulation of snow is settling nicely & melting quickly at low elevations & southern aspects.