Date and Time of Avalanche![]() |
Avalanche Type | Trigger | Size | Starting Elevation | Aspect | Number of avalanches |
---|---|---|---|---|---|---|
04/22/2021 - 13:00 Forecaster Observation: Swan Range |
Loose Dry/ Sluff |
Skier
Intentionally Triggered |
D1 , R1 | Above 6,500 ft | Northwest | 2 |
04/22/2021 - 11:30 Forecaster Observation - Upper McDonald Valley |
Soft Slab |
Skier
Intentionally Triggered |
D1 , R1 | Between 5,000 and 6,500 ft | Northwest | 4 |
04/19/2021 - 11:15 Going-to-the-Sun Road |
Wet Loose | Natural | D2 , R2 | 8500 | Southwest | 3 |
04/15/2021 - 12:30 Forecaster Observation - Middle Fork |
Wet Loose | Natural | D1 , R1 | Between 5,000 and 6,500 ft | Southeast | 3 |
04/14/2021 - 18:00 Forecaster Observation - Middle Fork |
Wet Loose | Natural | D1 , R1 | Above 6,500 ft | Northeast | 3 |
04/14/2021 - 17:00 Forecaster Observation - Middle Fork |
Wet Loose | Natural | D1 , R1 | Between 5,000 and 6,500 ft | Northwest | 3 |
04/14/2021 - 12:30 Flathead Range |
Unknown |
Natural
Cornice Fall Triggered |
D2 , R3 | 8200 | North | 4 |
04/13/2021 - 14:15 Avalanche accident: Skiumah Creek (Skier caught, carried, and partially buried |
Soft Slab |
Skier
Accidentally Triggered |
D2 , R2 | 7400 | North | 1 |
04/10/2021 - 14:00 Forecaster Observation - Middle Fork |
Loose Dry/ Sluff |
Skier
Intentionally Triggered |
D1 , R1 | Between 5,000 and 6,500 ft | Northeast | 7 |
04/10/2021 - 12:45 Forecaster Observation - Middle Fork |
Soft Slab | Natural | D1.5 , R1 | 7100 ft | Northeast | 1 |
04/09/2021 - 15:30 Forecaster Observation - Flathead Range |
Soft Slab | Skier | D1 , R1 | Between 5,000 and 6,500 ft | North | 2 |
04/09/2021 - 12:30 Forecaster Observation - Flathead Range |
Wet Loose |
Skier
Intentionally Triggered |
D1 , R1 | Between 5,000 and 6,500 ft | Southeast | 2 |
04/09/2021 - 12:00 Jewel basin |
Soft Slab | Natural | D2 , R4 | Above 6,500 ft | East | 1 |
04/09/2021 - 12:00 Forecaster Observation - Flathead Range |
Loose Dry/ Sluff |
Skier
Intentionally Triggered |
D1 , R1 | Between 5,000 and 6,500 ft | Northwest | 2 |
04/05/2021 - 18:00 Forecaster Observation: Southern Whitefish Range |
Wet Loose | Natural | D1 , R1 | Between 5,000 and 6,500 ft | Southwest | 5 |
04/05/2021 - 17:30 Flathead Range |
Wet Loose | Natural | D1 , R1 | Above 6,500 ft | Southeast | 8 |
04/05/2021 - 12:30 Going-to-the-Sun Road, Glacier Wall |
Glide | Natural | D2 , R2 | Between 5,000 and 6,500 ft | Southeast | 1 |
04/03/2021 - 12:00 Forecaster Observation - Flathead Range |
Wet Loose | Natural | D1 | Between 5,000 and 6,500 ft | Northwest | 3 |
04/02/2021 - 14:30 Forecaster Observation - Flathead Range |
Wet Loose | Natural | D1 | Between 5,000 and 6,500 ft | South | 8 |
04/02/2021 - 14:00 Paola Ridge |
Wet Loose | Natural | D2.5 , R2 | Between 5,000 and 6,500 ft | Southeast | 8 |