Date and Time of Avalanche Avalanche Type Trigger Sizesort ascending Starting Elevation Aspect Number of avalanches
Snowslip Mountain/Burnout avalanche path Soft Slab Natural D2.5 , R3 1
12/20/2019 - 13:00
Forecaster Observation- Central Glacier Park
Unknown Natural D2.5 , R3 Northwest 1
03/09/2018 - 19:15
Forecaster Observation - Tunnel Ridge, Flathead Range
Soft Slab Natural D2.5 , R3 Above 6,500 ft East 1
01/30/2018 - 12:45
Skiumah, Flathead Range
Hard Slab Cornice
Intentionally Triggered
D2.5 , R3 Above 6,500 ft North 1
03/20/2019 - 18:15
JFS Canyon
Wet Loose Natural D2.5 Between 5,000 and 6,500 ft 1
01/13/2018 - 05:30
Forecaster Observation - Crystal Cr, Flathead Range
Soft Slab Natural D2.5 , unknown Above 6,500 ft Northeast 1
03/21/2019 - 19:15
Forecaster Observation - Southern Swan Range
Wet Loose Natural D2.5 , R3 Below 5,000 ft South 1
02/28/2020 - 13:15
Forecaster Observation- Central GNP
Wet Loose D2.5 , R2 Between 5,000 and 6,500 ft Southeast 1
03/20/2019 - 17:30
JFS Canyon
Wet Slab D2.5 1
04/06/2020 - 12:15
Flathead Range
Wet Loose Natural D2.5 , R2 Above 6,500 ft Northeast 1
02/13/2019 - 08:45
BNSF Avalanche Program-Running Rabbit & Snowslip Mtns. GNP
Unknown Natural
Cornice Fall Triggered
D2.5 , R3 Above 6,500 ft East 1
03/21/2019 - 05:00
Haskill Slide
Wet Slab Snowboarder
Accidentally Triggered
D2.5 , R3 Between 5,000 and 6,500 ft 1
12/12/2018 - 08:45
Forecaster Observation - Grant Ridge, Flathead Range
Soft Slab Natural D2.5 , R3 Above 6,500 ft Northeast 1
02/01/2020 - 11:45
Forecaster Observation - Flathead Range
Hard Slab Natural D2.5 , R2 Above 6,500 ft North 1
12/30/2018 - 04:30
Forecaster Observation - Mt. Adams, Flathead Range
Hard Slab Natural D2.5 , R3 Above 6,500 ft North 1
03/20/2019 - 04:30
Picture Chutes-Whitefish Mountain Resort
Wet Slab Natural D2.5 , R3 Between 5,000 and 6,500 ft South 1
03/21/2019 - 16:15
Picture Chutes-Whitefish Mountain Resort
Wet Slab Explosive D2.5 South 1
02/20/2020 - 15:30
Forecaster Observation- Flathead Range
Hard Slab Natural
Cornice Fall Triggered
D2.5 , unknown Above 6,500 ft Northeast 1
01/12/2018 - 20:30
Forecaster Observation- Mt. Penrose
Hard Slab Natural D2.5 Above 6,500 ft 1
12/08/2019 - 03:30
Forecaster Observation: Lake McDonald Area
Unknown Natural D2.5 , R2 Between 5,000 and 6,500 ft Northwest 2

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