Above Pearl Lake

Location Name: 
Into the 20 Mile Drainage
Region: 
Warren Wagon Eastside/Crestline Area
Date and time of avalanche (best estimate if unknown): 
Sun, 02/10/2019 - 11:30
Location Map: 
United States
45° 5' 51.5976" N, 115° 58' 29.0028" W
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: 
Slab
Slope: 
39degrees
Trigger type: 
Natural
Crown Height: 
1 ft
Aspect: 
Southwest
Weak Layer: 
Storm Snow
Avalanche Width: 
90ft.
Terrain: 
Above Treeline
Elevation: 
8 200ft.
Bed Surface: 
Old Snow
Avalanche Length: 
150ft.
Number of similar avalanches: 
4
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: 
South
Accumulation rate: 
Greater than 1 in. per hour