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Date and Time of Avalanche | Avalanche Type |
Trigger![]() |
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 |