Date and Time of Avalanchesort ascending Avalanche Type Trigger Size Starting Elevation Aspect Number of avalanches
02/24/2021 - 15:00
Back country near Teton Pass Ski Area
Soft Slab Natural D2 , R2 Above 6,500 ft East 2
02/24/2021 - 12:45
Forecaster Observations - John F. Stevens Canyon
Hard Slab Artificial (Explosives)
Intentionally Triggered
D3 , R4 6150 Southeast 1
02/24/2021 - 12:15
Forecaster Observations - John F. Stevens Canyon
Hard Slab Artificial (Explosives)
Intentionally Triggered
D3 , R3 6700 Southeast 1
02/24/2021 - 12:00
Essex
Soft Slab Natural D2 Between 5,000 and 6,500 ft North 1
02/24/2021 - 12:00
Forecaster Observations - John F. Stevens Canyon
Hard Slab Artificial (Explosives)
Intentionally Triggered
D3 , R3 7000 East 1
02/23/2021 - 15:30
Forecaster Observations - John F. Stevens Canyon
Unknown Natural D2 , R3 Between 5,000 and 6,500 ft Southwest 1
02/23/2021 - 13:45
Forecaster Observation: Southern Glacier Park
Hard Slab Skier
Intentionally Triggered
D2 , R3 Between 5,000 and 6,500 ft East 1
02/23/2021 - 11:30
Forecaster Observation: Southern Glacier Park
Soft Slab Skier
Intentionally Triggered
D1 , R2 Between 5,000 and 6,500 ft East 1
02/23/2021 - 11:00
Forecaster Observations - John F. Stevens Canyon
Hard Slab Natural
Cornice Fall Triggered
D3 , R3 6700 East 1
02/23/2021 - 05:45
Forecaster Observation - Ten Lakes
Soft Slab Natural D1.5 , R2 Above 6,500 ft East 4
02/22/2021 - 14:45
Forecaster Observation/Near Miss - Northern Swan
Soft Slab Skier
Accidentally Triggered
D1.5 , R2 Above 6,500 ft Southwest 1
02/22/2021 - 13:00
Glacier National Park
Wet Slab Natural D4 , R4 1
02/21/2021 - 08:00
Forecaster Observation - Swan Range
Soft Slab Natural
Cornice Fall Triggered
D1 , R1 Between 5,000 and 6,500 ft Northeast 2
02/20/2021 - 15:15
Avalanche Accident: Doris Ridge (Snowbiker partially buried and injured)
Unknown Snow Bike (motorized)
Accidentally Triggered
D2.5 , R4 Above 6,500 ft Northeast 1
02/20/2021 - 14:15
Avalanche Near-Miss: Devils Hump
Hard Slab Snowboarder
Remotely Triggered
D3.5 , R4 7250 West 1
02/20/2021 - 14:00
Avalanche Incident: Dorothy's (snowboarder)
Hard Slab Snowboarder
Accidentally Triggered
D2 6500 South 2
02/20/2021 - 01:30
Forecaster Observation/Near Miss - Northern Swan
Soft Slab Natural D2 , R2 Between 5,000 and 6,500 ft Southeast 1
02/20/2021 - 01:00
Forecaster Observation/Near Miss - Northern Swan
Soft Slab Natural D3 , R4 Between 5,000 and 6,500 ft Northeast 1
02/19/2021 - 14:30
Tranquil basin
Soft Slab Skier
Intentionally Triggered
D1 , R2 Between 5,000 and 6,500 ft West 2
02/19/2021 - 14:15
Skook Peak
Soft Slab Snowboarder
Accidentally Triggered
D2 , R2 Between 5,000 and 6,500 ft Southeast 1

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