Date and Time of Avalanchesort descending Avalanche Type Trigger Size Starting Elevation Aspect Number of similar avalanches
12/19/2017 - 16:15
Forecaster Observation - Middle Fork Corridor
Soft Slab Natural D2 , R2 Between 5,000 and 6,500 ft 10-20
12/19/2017 - 20:00
Pro Observation - Whitefish Mountain Resort
Soft Slab 10-20
12/19/2017 - 21:45
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Natural D2.5 , unknown Above 6,500 ft Northwest
12/19/2017 - 22:30
Forecaster Observation - Red Meadow Lake, Whitefish Range
Soft Slab Natural D2 , R2 Above 6,500 ft 2
12/19/2017 - 23:15
Forecaster Observation - Middle Fork Corridor
Soft Slab Natural D2.5 , R3 Above 6,500 ft 4
12/23/2017 - 21:00
Skook Face
12/24/2017 - 19:15
Diamond Peak- Whitefish Range
12/28/2017 - 11:45
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Natural D1.5 , R1 Above 6,500 ft 5-10
12/28/2017 - 12:30
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Skier D1 , R1 10-20
12/28/2017 - 13:00
Ghoulie Point
Soft Slab Natural D1 , R1 Above 6,500 ft Northeast 5
12/29/2017 - 12:00
Skookaleel Ridge, southern Whitefish Range
Soft Slab Natural D2.5 , R2 Southwest 3
12/29/2017 - 17:00
Forecaster Observation- Rescue Creek, Flathead Range
Soft Slab D2 10-20
12/29/2017 - 18:15
Forecaster Observation- Cascadilla, Flathead Range
Soft Slab D2 Between 5,000 and 6,500 ft 5-10
12/29/2017 - 19:45
Forecaster Observation - Canyon Creek, southern Whitefish Range
Soft Slab Natural D1 , R1 Between 5,000 and 6,500 ft 10-20
12/29/2017 - 22:15
Forecaster Observation- Rescue Creek, Flathead Range
Soft Slab D3 Above 6,500 ft
12/30/2017 - 08:15
Forecaster Observation - WMR accessed backcountry, Whitefish Range
Soft Slab Natural D1.5 , R2 10-20
12/31/2017 - 06:00
Elk Mountain - Southern Glacier Park
D2 Southwest
01/01/2018 - 14:00
Forecaster Observation- Rescue Creek, Flathead Range
Soft Slab Skier
Intentionally Triggered
D1 , R1 Above 6,500 ft North 4
01/01/2018 - 21:15
Professional Observation - Grave Cr., Whitefish Range
Soft Slab Snowmobiler
Accidentally Triggered
D1.5 , R2 Between 5,000 and 6,500 ft Northeast 5-10
01/01/2018 - 21:45
Cascade, Flathead Range

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