Date and Time of Avalanche Avalanche Type Trigger Size Starting Elevationsort ascending Aspect Number of avalanches
03/05/2022 - 11:00
Southern Glacier National Park
Wet Loose Natural D2 , R2 Between 5,000 and 6,500 ft Southeast 1
02/17/2021 - 14:15
Avalanche Incident: Canyon Creek (Snowmobiler)
Soft Slab Snowmobiler
Accidentally Triggered
D2 , R3 Between 5,000 and 6,500 ft Northeast 1
03/21/2020 - 14:30
Forecaster Observation - Flathead Range
Wet Loose Skier
Accidentally Triggered
D1 , R1 Between 5,000 and 6,500 ft East 2
01/24/2018 - 15:00
Noisy Basin, Swan Range
Soft Slab Skier
Intentionally Triggered
D2 Between 5,000 and 6,500 ft Northeast 1
02/25/2020 - 13:45
Forecaster Observation- Swan Range
Loose Dry/ Sluff Natural D1.5 , R1 Between 5,000 and 6,500 ft West 1
12/22/2021 - 10:30
Forecaster Observation - NE of The Mountain Formerly Known as The Big
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 , R1 Between 5,000 and 6,500 ft Northeast 2
02/08/2019 - 19:45
Forecaster Observation- Rescue Creek, Flathead Range
Hard Slab Natural D2 , R2 Between 5,000 and 6,500 ft West 1
03/07/2019 - 15:15
Forecaster Observation - Cascade and Skiumah, Flathead Range
Soft Slab Natural D1 , R1 Between 5,000 and 6,500 ft East 1
04/18/2022 - 08:15
Middle Fork Corridor
Soft Slab Natural D1 , R2 Between 5,000 and 6,500 ft 10
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
03/29/2020 - 13:30
Marion Lake
Wet Loose Skier D1.5 , R2 Between 5,000 and 6,500 ft North 3
03/24/2019 - 17:00
Forecaster Observation - Middle Fork
Wet Loose Natural D1.5 , R2 Between 5,000 and 6,500 ft Northwest 1
11/17/2020 - 14:30
Forecaster Observation - Swan Range
Wet Loose Natural D2 , R1 Between 5,000 and 6,500 ft Southwest 2
01/13/2020 - 02:00
Forecaster Observation - Flathead Range
Hard Slab Natural D2 , R2 Between 5,000 and 6,500 ft North 1
03/14/2022 - 12:00
Forecaster Observation - southern Whitefish Range
Soft Slab Skier
Accidentally Triggered
D1.5 , R1 Between 5,000 and 6,500 ft Northeast 1
02/02/2021 - 12:00
Doris Ridge, Northern Swan Range
Soft Slab On Foot (includes snowshoers, climbers/mountaineers, and hikers)
Remotely Triggered
D1.5 , R2 Between 5,000 and 6,500 ft North 3
12/19/2017 - 08:15
Forecaster Observation - Ghoulie Ridge, Whitefish Range
Soft Slab Natural D1.5 , R1 Between 5,000 and 6,500 ft Northeast 1
02/12/2020 - 00:45
Central Glacier Park
Loose Dry/ Sluff Natural D1.5 , R2 Between 5,000 and 6,500 ft South 10
03/16/2019 - 13:15
Forecaster Observation-Northern Whitefish Range-
Wet Loose Natural D1.5 , R2 Between 5,000 and 6,500 ft South 1
11/25/2020 - 00:45
Forecaster Observation - Flathead Range
Wet Loose Natural D1.5 , R2 Between 5,000 and 6,500 ft North 6

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