Date and Time of Avalanche Avalanche Type Trigger Size Starting Elevation Aspectsort descending Number of avalanches
02/11/2018 - 12:00
Forecaster Observation - Ousel Peak to Skiumah Lake, Flathead Range
Hard Slab Natural D1 , R2 Above 6,500 ft 1
12/15/2018 - 18:15
Forecaster Observation - Mt. Adams, Flathead Range
Soft Slab Natural D2 , R2 Above 6,500 ft 1
03/20/2019 - 14:15
JFS Canyon
Wet Slab Natural D3 Between 5,000 and 6,500 ft 1
Snowslip Mountain/Burnout avalanche path Soft Slab Natural D2.5 , R3 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
02/01/2020 - 12:30
Forecaster Observation - Flathead Range
Soft Slab Natural D2 , R2 Above 6,500 ft 4
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
03/20/2019 - 17:15
JFS Canyon
Wet Slab Natural D3 , R3 Between 5,000 and 6,500 ft 1
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
02/28/2020 - 12:15
Forecaster Observation- Central GNP
Wet Loose D2 , R2 5
02/04/2019 - 11:00
Forecaster Observation - Marion Lake, Flathead Range
Soft Slab Skier
Intentionally Triggered
D1 , R1 1
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
12/12/2018 - 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
01/17/2020 - 12:00
Forecaster Observation - Central Swan
Soft Slab Natural D1 , R1 20
Crystal Ck 1
02/13/2018 - 08:15
Essex Creek, Flathead Range
1
12/30/2018 - 04:15
Forecaster Observation - Mt. Adams, Flathead Range
Soft Slab Natural D1.5 , R2 Above 6,500 ft 1

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