North of Slab Butte, East of Duck Lake

Location Name: 
Around slab butte area
Region: 
Slab Butte/Wong’s Bowl Area
Date and time of avalanche (best estimate if unknown): 
Tue, 02/21/2017 - 11:00
Location Map: 
United States
45° 6' 41.004" N, 116° 8' 8.8368" W
US


Red Flags: 
Recent avalanche activity
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain
Obvious avalanche path
Terrain Trap

Observation made by: Public
Avalanche Observations
Avalanche Type: 
Wet
Slab
Slope: 
40degrees
Trigger type: 
Snowmobiler
Crown Height: 
2 ft
Weak Layer: 
Storm Snow
Avalanche Width: 
80ft.
Terrain: 
Below Treeline
Bed Surface: 
Old Snow
Avalanche Length: 
150ft.
Number of people caught: 
0
More detailed information about the avalanche: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
Snow
Air temperature trend: 
Static
Wind Direction: 
Northeast
Accumulation rate: 
Less than 1 in. per hour