Professional Observation - John F. Stevens Canyon, Glacier National Park

Location Name: 
Professional Observation - John F. Stevens Canyon, Glacier National Park
Region: 
Flathead Range/Glacier National Park - John F. Stevens Canyon
Date and time of avalanche (best estimate if unknown): 
Thu, 03/02/2017 - 14:00
Location Map: 

Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain
Obvious avalanche path
Observation made by: Professional Observer
Avalanche Observations
Avalanche Type: 
Dry
Trigger type: 
Natural
Crown Height: 
1 ft
Aspect: 
Northeast
Weak Layer: 
Within storm snow
Avalanche Width: 
200ft.
Terrain: 
Near Treeline
Elevation: 
6 200ft.
Bed Surface: 
Storm Snow
Avalanche Length: 
800ft.
More detailed information about the avalanche: 

Images and information reported and submitted by BNSF Avalanche Safety Program.

Image 1: Shed 7 West natural wind slab occurred March 2, 2017. Crown depth approximately 1 ft. (30 cm). 50-60 meters wide.

Image 2: Infinity path. Storm/Wind Slab. Crown depth estimated at approximately 12-18 inches.

Image 3: Shed 7 West natural wind slab occurred March 2, 2017. Crown depth approximately 1 ft. (30 cm). 50-60 meters wide.

 

Avalanche Photos: 
Weather Observations
Air temperature: 
Precipitation: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 
Activity: 
Skiing