Date and Time of Avalanche | Avalanche Type | Trigger | Size | Starting Elevation |
Aspect![]() |
Number of avalanches |
---|---|---|---|---|---|---|
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 | ||
Mt Brown Lookout | 1 | |||||
12/28/2017 - 11:45 Forecaster Observation - Spider Bowl, Swan Range |
Soft Slab | Natural | D1.5 , R1 | Above 6,500 ft | 1 | |
04/01/2020 - 12:00 Southern Whitefish Range |
Loose Dry/ Sluff |
Skier
Intentionally Triggered |
D1 | Between 5,000 and 6,500 ft | 5 | |
02/17/2018 - 20:00 Forecaster Observation - Grant Ridge, Flathead Range |
Soft Slab | Natural | D2 | Above 6,500 ft | 1 | |
Forecaster Observation - Flathead Range | 1 | |||||
04/11/2018 - 01:00 JFS Canyon and Essex area, Flathead Range |
Soft Slab | Natural | D2 | Above 6,500 ft | 1 | |
East of WMR | 1 | |||||
03/04/2018 - 19:15 Mount Grant , Flathead Range |
1 | |||||
02/19/2019 - 12:45 Benchmark |
Hard Slab |
Snowmobiler
Remotely Triggered |
D2 , R3 | 1 | ||
01/23/2018 - 20:00 upper Marion and Dickey Creek |
1 | |||||
12/05/2018 - 10:45 Forecaster Observation - Heavens Peak, GNP |
Loose Dry/ Sluff | Natural | D1 , R1 | Above 6,500 ft | 1 | |
Forecaster Observation - Hornet Mountain | 1 | |||||
03/11/2018 - 20:15 Tranquill Basin - Flathead Range |
1 | |||||
02/01/2020 - 09:45 Forecaster Observation - Flathead Range |
Wet Loose | D2 , R1 | Between 5,000 and 6,500 ft | 3 | ||
Big Slide | 1 | |||||
Forecaster Observation - Flathead Range | 1 | |||||
01/13/2021 - 01:30 Forecaster Observation: Middle Fork Corridor |
Wet Loose | Natural | D2 , R2 | 20 | ||
Flathead Range | 1 |