Date and Time of Avalanche Avalanche Type Triggersort ascending Size Starting Elevation Aspect Number of avalanches
01/01/2020 - 13:00
Hellroaring Basin
Soft Slab Explosive D1 , R2 Between 5,000 and 6,500 ft West 4
12/20/2019 - 07:45
Forecaster Observation- Southern Whitefish Range
Soft Slab Explosive
Intentionally Triggered
D1 , R1 Between 5,000 and 6,500 ft East 4
01/01/2020 - 13:00
Hellroaring Basin
Soft Slab Explosive D2 , R3 Between 5,000 and 6,500 ft South 4
01/30/2018 - 12:45
Skiumah, Flathead Range
Hard Slab Cornice
Intentionally Triggered
D2.5 , R3 Above 6,500 ft North 1
03/13/2019 - 00:45
Forecaster Observation - Skiumah Creek, Flathead Range
Hard Slab Believe it was initiated by ice fall D3 , R2 ~7000' North 1
02/24/2021 - 12:00
Forecaster Observations - John F. Stevens Canyon
Hard Slab Artificial (Explosives)
Intentionally Triggered
D3 , R3 7000 East 1
02/24/2021 - 12:15
Forecaster Observations - John F. Stevens Canyon
Hard Slab Artificial (Explosives)
Intentionally Triggered
D3 , R3 6700 Southeast 1
02/24/2021 - 12:45
Forecaster Observations - John F. Stevens Canyon
Hard Slab Artificial (Explosives)
Intentionally Triggered
D3 , R4 6150 Southeast 1
01/23/2020 - 14:30
Teton Pass winter sports area
Hard Slab AE (large ANFO)
Intentionally Triggered
D3 , R3 Above 6,500 ft East 1
12/13/2019 - 10:00
Forecaster Observation - Southern Whitefish Range
Soft Slab AE D1.5 Between 5,000 and 6,500 ft 2
03/20/2019 - 03:45
Picture Chutes-Whitefish Mountain Resort
Wet Slab 20 lb ANFO explosive D2.5 , R4 Between 5,000 and 6,500 ft South 1
03/17/2019 - 15:15
BNSF Avalanche Program-JFS Canyon
Wet Loose D2 Between 5,000 and 6,500 ft 1
Swan River State Forest 1
02/28/2022 - 12:00
Forecaster Observation - Whitefish Range
Soft Slab D2 , R3 Between 5,000 and 6,500 ft Southwest 1
02/09/2018 - 10:00
Northern GNP
1
GNP 1
02/14/2018 - 06:00
Sheep Lakes
1
Middle Fork 1
12/24/2017 - 19:15
Diamond Peak- Whitefish Range
1
Flathead Range Glide Between 5,000 and 6,500 ft South 3

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