Date and Time of Avalanche |
Avalanche Type![]() |
Trigger | Size | Starting Elevation | Aspect | Number of avalanches |
---|---|---|---|---|---|---|
02/20/2020 - 11:45 Flathead Range |
Loose Dry/ Sluff | Natural | D1 , R1 | Above 6,500 ft | Southeast | 1 |
03/01/2019 - 19:00 Forecaster Observation - Hellroaring, Canyon Creek |
Loose Dry/ Sluff | Skier | D1 , R1 | 6200 | East | 1 |
01/17/2020 - 12:00 Forecaster Observation - Central Swan |
Loose Dry/ Sluff | Natural | D2 , R2 | Above 6,500 ft | West | 2 |
12/08/2018 - 15:30 Forecaster Observation - Canyon Creek, Whitefish Range |
Loose Dry/ Sluff | Natural | D1 , R1 | Between 5,000 and 6,500 ft | North | 1 |
02/12/2020 - 13:30 Forecaster Observation - Flathead Range |
Loose Dry/ Sluff | Natural | D1 , R1 | Below 5,000 ft | South | 3 |
12/24/2020 - 14:45 Forecaster Observation - |
Loose Dry/ Sluff |
Snowboarder
Intentionally Triggered |
D1 | Between 5,000 and 6,500 ft | Southwest | 2 |
12/10/2017 - 14:15 Forecaster Observation - Mt. Stanton, Glacier National Park |
Loose Dry/ Sluff |
Skier
Intentionally Triggered |
D1 , R1 | Above 6,500 ft | Northeast | 1 |
04/06/2018 - 08:30 Forecaster Observation - Southern Whitefish Range |
Loose Dry/ Sluff | Natural | D1 , R1 | Between 5,000 and 6,500 ft | South | 1 |
03/14/2020 - 15:30 Cascadilla Creek |
Loose Dry/ Sluff | Natural | D1 | Below 5,000 ft | East | 6 |
03/21/2020 - 13:30 Forecaster Observation - Flathead Range |
Loose Dry/ Sluff | Skier | D1 , R1 | Above 6,500 ft | Northeast | 2 |
03/01/2019 - 19:30 Forecaster Observation - Hellroaring, Canyon Creek |
Loose Dry/ Sluff | Natural | D1 , R1 | 6300 | Southeast | 1 |
02/09/2020 - 12:45 Forecaster Observation - Flathead Range, Middle Fork Corridor |
Loose Dry/ Sluff | Natural | D1 , R1 | South | 5 | |
02/17/2018 - 22:15 Essex Creek |
Loose Dry/ Sluff | Natural | D1.5 | 1 | ||
02/12/2020 - 15:00 Forecaster Observation - Middle Fork |
Loose Dry/ Sluff |
Skier
Intentionally Triggered |
D1 , R1 | Below 5,000 ft | East | 5 |
03/02/2018 - 23:15 Forecaster Observation - Rescue Creek, Flathead Range |
Loose Dry/ Sluff |
Natural
Cornice Fall Triggered |
D2 , R2 | Above 6,500 ft | Northeast | 1 |
02/06/2019 - 12:45 Forecaster Observation - Mt. Brown, GNP |
Loose Dry/ Sluff | Natural | D1 , R1 | 1 | ||
12/31/2019 - 14:30 Forecaster Observation -Northern Swan Range |
Loose Dry/ Sluff |
Skier
Intentionally Triggered |
D1 , R1 | Above 6,500 ft | East | 2 |
02/17/2020 - 13:30 Forecaster Observation - Middle Fork |
Loose Dry/ Sluff | Skier | D1 , R1 | Between 5,000 and 6,500 ft | Northeast | 4 |
02/19/2020 - 14:15 Forecaster Observation - Apgar Range and Swan Range |
Loose Dry/ Sluff | Natural | D1 , R2 | Between 5,000 and 6,500 ft | South | 10 |
01/14/2020 - 12:00 Lost Johnny |
Loose Dry/ Sluff |
Natural
Intentionally Triggered |
D1 , R1 | Between 5,000 and 6,500 ft | 25 |