Aspects N-E Wind Slabs

Location Name: 
BWRA Widespread
Region: 
BWRA
Date and time of avalanche (best estimate if unknown): 
Wed, 02/06/2019 - 11:44
Location Map: 


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

Observation made by: Public
Avalanche Observations
Avalanche Type: 
Dry
Slab
Slope: 
37degrees
Trigger type: 
Snowmobiler
Crown Height: 
Less than 1 ft
Aspect: 
East
Weak Layer: 
Storm Snow
Avalanche Width: 
50ft.
Terrain: 
Above Treeline
Elevation: 
9 600ft.
Bed Surface: 
Storm Snow
Avalanche Length: 
85ft.
Number of similar avalanches: 
5-10
Number of people caught: 
1
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: 

This Wind Slab avalanche was triggered by a snowmobiler on Wednesday afternoon. Its aspect is East & its on a slope that angles 37 degrees. The crew which noted the slide called it a "micro slab". The dry wind slab broke 6 inches deep into the new snow, noone was buried or injured. Several other slab avalanches were observed to have taken place during the long storm cycle on similar aspects. Debris in runout zones & smaller crowns were noticable all around the BWRA. It may take a keen eye to see the debris that has been covered & the crowns have been blown in

Avalanche Photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Calm
Precipitation: 
None
Air temperature trend: 
Cooling
Wind Direction: 
Southwest
Accumulation rate: 
None
More detailed information about the weather: 

Uninhibited sunshine for most of the day with cold temperatures. Almost no wind. The snow density changes dramatically at each location from wind & sun effects.