Date and Time of Avalanche Avalanche Type Trigger Sizesort descending Starting Elevation Aspect Number of avalanches
04/10/2019 - 10:00
Forecaster observation: Marias Pass
Wet Loose Natural D1 , R2 5200 feet Northwest 1
02/14/2020 - 14:45
Forecaster Observation - Flathead Range
Soft Slab Skier
Intentionally Triggered
D1 Between 5,000 and 6,500 ft Northeast 1
12/18/2017 - 12:15
Canyon Creek, southern Whitefish Range
Soft Slab Natural D1 1
04/05/2021 - 18:00
Forecaster Observation: Southern Whitefish Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft Southwest 5
01/29/2020 - 02:30
Forecaster Observation - Flathead Range
Loose Dry/ Sluff Natural D1 Between 5,000 and 6,500 ft North 5
01/01/2020 - 08:00
Forecaster Observation - Central Swan
Soft Slab Natural
Cornice Fall Triggered
D1 , R2 Between 5,000 and 6,500 ft Northeast 1
01/10/2019 - 12:45
Forecaster Observation- Grave Creek, Northern Whitefish Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft Southwest 1
03/14/2020 - 10:00
Forecaster Observation - WMR sidecountry
Loose Dry/ Sluff Natural D1 , R1 Between 5,000 and 6,500 ft Southwest 5
02/19/2020 - 11:15
Flathead Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft Southeast 3
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
04/22/2021 - 11:30
Forecaster Observation - Upper McDonald Valley
Soft Slab Skier
Intentionally Triggered
D1 , R1 Between 5,000 and 6,500 ft Northwest 4
01/20/2019 - 17:00
Forecaster Observation- Kona, Whitefish Range
Soft Slab Skier
Intentionally Triggered
D1 , R1 Between 5,000 and 6,500 ft North 1
02/12/2021 - 12:00
Big Trees
Loose Dry/ Sluff Natural D1 , R1 Between 5,000 and 6,500 ft South 1
03/01/2019 - 19:30
Forecaster Observation - Hellroaring, Canyon Creek
Loose Dry/ Sluff Natural D1 , R1 6300 Southeast 1
04/16/2020 - 13:00
Forecaster Observation - Central Swan Range
Wet Loose Natural D1 Above 6,500 ft 6
01/25/2019 - 18:00
Forecaster Observation - Link Mountain
Soft Slab Skier
Intentionally Triggered
D1 , R1 Between 5,000 and 6,500 ft Northwest 1
03/05/2018 - 20:30
Professional Observation - Hay Cr., Whitefish Range
Soft Slab Natural D1 , R1 Above 6,500 ft South 1
01/23/2018 - 13:15
Marion Lake
Soft Slab Skier
Accidentally Triggered
D1 , R1 Between 5,000 and 6,500 ft Northwest 1
02/08/2020 - 12:30
Forecaster Observation - Flathead Range
Soft Slab Skier
Accidentally Triggered
D1 , R1 Between 5,000 and 6,500 ft 1
03/11/2019 - 15:30
Snowshed/Cameahwait ridge
Wet Loose Unknown D1 , R2 Between 5,000 and 6,500 ft South 1

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