Date and Time of Avalanche | Avalanche Type | Trigger | Size | Starting Elevation |
Aspect![]() |
Number of avalanches |
---|---|---|---|---|---|---|
03/20/2019 - 17:15 JFS Canyon |
Wet Slab | Natural | D3 , R3 | Between 5,000 and 6,500 ft | 1 | |
03/20/2019 - 14:15 JFS Canyon |
Wet Slab | Natural | D3 | Between 5,000 and 6,500 ft | 1 | |
02/13/2019 - 00:30 Forecaster Observation - Marion Lake, Flathead Range |
Soft Slab | Natural | 5000-7000' | 1 | ||
03/21/2020 - 13:15 tunnel |
Wet Loose | Natural | D1 | 3 | ||
02/11/2018 - 12:00 Forecaster Observation - Ousel Peak to Skiumah Lake, Flathead Range |
Hard Slab | Natural | D1 , R2 | Above 6,500 ft | 1 | |
Snowslip Mountain/Burnout avalanche path | Soft Slab | Natural | D2.5 , R3 | 1 | ||
Swan Range: North of Strawberry Lake/South of Hash Mountain | 1 | |||||
03/28/2020 - 13:00 Forecaster Observation - Northern Flathead Range |
Soft Slab |
Skier
Intentionally Triggered |
D1 , R1 | Between 5,000 and 6,500 ft | 4 | |
01/23/2019 - 13:15 Forecaster Observation- Canyon Creek, Whitefish Range |
Loose Dry/ Sluff | Natural | D1 , R1 | Between 5,000 and 6,500 ft | 1 | |
02/01/2020 - 12:30 Forecaster Observation - Flathead Range |
Soft Slab | Natural | D2 , R2 | Above 6,500 ft | 4 | |
02/04/2019 - 11:00 Forecaster Observation - Marion Lake, Flathead Range |
Soft Slab |
Skier
Intentionally Triggered |
D1 , R1 | 1 | ||
Crystal Ck | 1 | |||||
01/08/2021 - 14:00 Noisy Basin |
Cornice | Natural | 1 | |||
12/12/2018 - 16:00 Forecaster Observation- Rescue Creek, Flathead Range |
Soft Slab | Natural | D2 , R2 | Above 6,500 ft | 1 | |
03/21/2019 - 17:30 Glacier Park Traverse |
Wet Slab | D2 | 1 | |||
02/28/2020 - 12:15 Forecaster Observation- Central GNP |
Wet Loose | D2 , R2 | 5 | |||
02/09/2020 - 12:45 Forecaster Observation - Flathead Range, Middle Fork Corridor |
Loose Dry/ Sluff | Skier | D1 , R1 | Between 5,000 and 6,500 ft | 6 | |
12/15/2018 - 18:15 Forecaster Observation - Mt. Adams, Flathead Range |
Soft Slab | Natural | D2 , R2 | Above 6,500 ft | 1 | |
01/17/2020 - 12:00 Forecaster Observation - Central Swan |
Soft Slab | Natural | D1 , R1 | 20 | ||
12/16/2020 - 12:00 Canyon Creek |
Soft Slab | Skier | D1 | 1 |