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Date and Time of Avalanche | Avalanche Type |
Trigger![]() |
Size | Starting Elevation | Aspect | Number of avalanches |
---|---|---|---|---|---|---|
11/25/2020 - 00:45 Forecaster Observation - Flathead Range |
Wet Loose | Natural | D1.5 , R2 | Between 5,000 and 6,500 ft | North | 6 |
01/24/2020 - 11:30 Forecaster Observation - Flathead Range |
Wet Loose | Natural | D2 , R1 | Between 5,000 and 6,500 ft | Northwest | 2 |
02/13/2019 - 03:30 BNSF Avalanche Program-Running Rabbit & Snowslip Mtns. GNP |
Unknown | Natural | D2.5 , R3 | Between 5,000 and 6,500 ft | South | 1 |
03/23/2022 - 16:00 BNSF Avalanche Safety - JFS Canyon |
Hard Slab |
Natural
Cornice Fall Triggered |
D3 , R3 | 7600 | East | 1 |
03/04/2021 - 15:00 Forecaster Observation: Lake McDonald Area |
Wet Loose | Natural | D1 , R1 | Above 6,500 ft | Southwest | 3 |
04/06/2020 - 12:15 Flathead Range |
Wet Loose | Natural | D2.5 , R2 | Above 6,500 ft | Northeast | 1 |
03/01/2022 - 09:00 Forecaster Observation - Flathead Range |
Wet Loose | Natural | D1 | Below 5,000 ft | Northeast | 5 |
02/05/2021 - 08:00 Forecaster Observation - Flathead Range |
Soft Slab | Natural | D2 , unknown | Above 6,500 ft | Southeast | 3 |
03/14/2020 - 16:00 Forecaster Observation - Lake McDonald Area |
Hard Slab | Natural | D1.5 , R1 | Above 6,500 ft | Southeast | 1 |
04/18/2019 - 12:00 Forecaster Observation - Flathead Range |
Wet Loose | Natural | D2 , R3 | 5300 | North | 1 |
04/03/2018 - 14:15 Forecaster Observation - Skiumah Lake, Flathead Range |
Unknown | Natural | D2 , R2 | 1 | ||
01/12/2022 - 12:00 Tunnel Ridge |
Wet Loose | Natural | D2 , R2 | Between 5,000 and 6,500 ft | Southeast | 1 |
02/17/2020 - 13:30 BNSF Avalanche Safety - Snowslip Mtn. GNP |
Loose Dry/ Sluff | Natural | D1 , R1 | Between 5,000 and 6,500 ft | East | 4 |
03/21/2019 - 15:00 Forecaster Observation- Road Observations |
Wet Loose | Natural | D3 | Between 5,000 and 6,500 ft | Southwest | 1 |
12/19/2017 - 22:30 Forecaster Observation - Red Meadow Lake, Whitefish Range |
Soft Slab | Natural | D2 , R2 | Above 6,500 ft | 1 | |
02/15/2019 - 23:30 Forecaster Observation - Rescue Creek, Flathead Range |
Unknown | Natural | D3.5 , unknown | Above 6,500 ft | Southeast | 1 |
Teton Pass Ski Area - Upper mountain, above the ski area - Joe's Wave | Hard Slab |
Explosive - 15lb ANFO Intentionally Triggered |
D3 , R3 | Above 6,500 ft | East | 2 |
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 | D1 , R2 | Between 5,000 and 6,500 ft | West | 4 |
01/01/2020 - 13:00 Hellroaring Basin |
Soft Slab | Explosive | D2 , R3 | Between 5,000 and 6,500 ft | South | 4 |