Date and Time of Avalanchesort descending Avalanche Type Trigger Size Starting Elevation Aspect Number of avalanches
12/19/2017 - 13:30
Forecaster Observation - Ghoulie Ridge, Whitefish Range
Soft Slab Natural D1 , R1 Between 5,000 and 6,500 ft 1
12/19/2017 - 15:45
Forecaster Observation - Middle Fork Corridor
Soft Slab Natural D1.5 , R1 Below 5,000 ft 1
12/19/2017 - 16:15
Forecaster Observation - Middle Fork Corridor
Soft Slab Natural D2 , R2 Between 5,000 and 6,500 ft 1
12/19/2017 - 20:00
Pro Observation - Whitefish Mountain Resort
Soft Slab 1
12/19/2017 - 21:45
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Natural D2.5 , unknown Above 6,500 ft Northwest 1
12/19/2017 - 22:30
Forecaster Observation - Red Meadow Lake, Whitefish Range
Soft Slab Natural D2 , R2 Above 6,500 ft 1
12/19/2017 - 23:15
Forecaster Observation - Middle Fork Corridor
Soft Slab Natural D2.5 , R3 Above 6,500 ft 1
12/23/2017 - 21:00
Skook Face
1
12/24/2017 - 19:15
Diamond Peak- Whitefish Range
1
12/28/2017 - 11:45
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Natural D1.5 , R1 Above 6,500 ft 1
12/28/2017 - 12:30
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Skier D1 , R1 1
12/28/2017 - 13:00
Ghoulie Point
Soft Slab Natural D1 , R1 Above 6,500 ft Northeast 1
12/29/2017 - 12:00
Skookaleel Ridge, southern Whitefish Range
Soft Slab Natural D2.5 , R2 Southwest 1
12/29/2017 - 17:00
Forecaster Observation- Rescue Creek, Flathead Range
Soft Slab D2 1
12/29/2017 - 18:15
Forecaster Observation- Cascadilla, Flathead Range
Soft Slab D2 Between 5,000 and 6,500 ft 1
12/29/2017 - 19:45
Forecaster Observation - Canyon Creek, southern Whitefish Range
Soft Slab Natural D1 , R1 Between 5,000 and 6,500 ft 1
12/29/2017 - 22:15
Forecaster Observation- Rescue Creek, Flathead Range
Soft Slab D3 Above 6,500 ft 1
12/30/2017 - 08:15
Forecaster Observation - WMR accessed backcountry, Whitefish Range
Soft Slab Natural D1.5 , R2 1
12/31/2017 - 06:00
Elk Mountain - Southern Glacier Park
D2 Southwest 1
01/01/2018 - 14:00
Forecaster Observation- Rescue Creek, Flathead Range
Soft Slab Skier
Intentionally Triggered
D1 , R1 Above 6,500 ft North 1

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