Cornice Fall Below Latopie Lake

Location Name: 
Cornice Fall Below Latopie Lake
Region: 
BWRA
Date and time of avalanche (best estimate if unknown): 
Sat, 04/08/2017 - 16:35
Location Map: 


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

Observation made by: Avalanche Specialist
Avalanche Observations
Avalanche Type: 
Dry
Loose/Point-Release
Slope: 
36degrees
Trigger type: 
Natural
Crown Height: 
2 ft
Aspect: 
Southeast
Weak Layer: 
Storm Snow
Avalanche Width: 
50ft.
Terrain: 
Above Treeline
Elevation: 
9 900ft.
Bed Surface: 
Storm Snow
Avalanche Length: 
555ft.
Number of similar avalanches: 
3
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: 

A cornice had broken off a chunk mid-storm which triggered this localized avalanche. The new Loose Snow Avalanche ran for +550' & occured naturally on a 36 degree slope above treeline.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Strong
Precipitation: 
Snow
Air temperature trend: 
Cooling
Wind Direction: 
Northwest
Accumulation rate: 
Greater than 1 in. per hour
More detailed information about the weather: 

Strong winds & temperatures around freezing deposited Graupel across the BWRA above 8000'. Below 8000' a rain dominated mix.