Date and Time of Avalanche Avalanche Typesort descending Trigger Size Starting Elevation Aspect Number of avalanches
02/20/2020 - 11:45
Flathead Range
Loose Dry/ Sluff Natural D1 , R1 Above 6,500 ft Southeast 1
03/01/2019 - 19:00
Forecaster Observation - Hellroaring, Canyon Creek
Loose Dry/ Sluff Skier D1 , R1 6200 East 1
01/17/2020 - 12:00
Forecaster Observation - Central Swan
Loose Dry/ Sluff Natural D2 , R2 Above 6,500 ft West 2
12/08/2018 - 15:30
Forecaster Observation - Canyon Creek, Whitefish Range
Loose Dry/ Sluff Natural D1 , R1 Between 5,000 and 6,500 ft North 1
02/12/2020 - 13:30
Forecaster Observation - Flathead Range
Loose Dry/ Sluff Natural D1 , R1 Below 5,000 ft South 3
12/24/2020 - 14:45
Forecaster Observation -
Loose Dry/ Sluff Snowboarder
Intentionally Triggered
D1 Between 5,000 and 6,500 ft Southwest 2
12/10/2017 - 14:15
Forecaster Observation - Mt. Stanton, Glacier National Park
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 , R1 Above 6,500 ft Northeast 1
04/06/2018 - 08:30
Forecaster Observation - Southern Whitefish Range
Loose Dry/ Sluff Natural D1 , R1 Between 5,000 and 6,500 ft South 1
03/14/2020 - 15:30
Cascadilla Creek
Loose Dry/ Sluff Natural D1 Below 5,000 ft East 6
03/21/2020 - 13:30
Forecaster Observation - Flathead Range
Loose Dry/ Sluff Skier D1 , R1 Above 6,500 ft Northeast 2
03/01/2019 - 19:30
Forecaster Observation - Hellroaring, Canyon Creek
Loose Dry/ Sluff Natural D1 , R1 6300 Southeast 1
02/09/2020 - 12:45
Forecaster Observation - Flathead Range, Middle Fork Corridor
Loose Dry/ Sluff Natural D1 , R1 South 5
02/17/2018 - 22:15
Essex Creek
Loose Dry/ Sluff Natural D1.5 1
02/12/2020 - 15:00
Forecaster Observation - Middle Fork
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 , R1 Below 5,000 ft East 5
03/02/2018 - 23:15
Forecaster Observation - Rescue Creek, Flathead Range
Loose Dry/ Sluff Natural
Cornice Fall Triggered
D2 , R2 Above 6,500 ft Northeast 1
02/06/2019 - 12:45
Forecaster Observation - Mt. Brown, GNP
Loose Dry/ Sluff Natural D1 , R1 1
12/31/2019 - 14:30
Forecaster Observation -Northern Swan Range
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 , R1 Above 6,500 ft East 2
02/17/2020 - 13:30
Forecaster Observation - Middle Fork
Loose Dry/ Sluff Skier D1 , R1 Between 5,000 and 6,500 ft Northeast 4
02/19/2020 - 14:15
Forecaster Observation - Apgar Range and Swan Range
Loose Dry/ Sluff Natural D1 , R2 Between 5,000 and 6,500 ft South 10
01/14/2020 - 12:00
Lost Johnny
Loose Dry/ Sluff Natural
Intentionally Triggered
D1 , R1 Between 5,000 and 6,500 ft 25

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