Date and Time of Avalanche Avalanche Type Trigger Size Starting Elevationsort descending Aspect Number of avalanches
01/13/2021 - 01:45
Forecaster Observation: Middle Fork Corridor
Wet Loose Natural D3.5 , R3 Above 6,500 ft Southeast 2
01/28/2020 - 10:00
Forecaster Observation - Central Swan Range
Soft Slab Natural D2 , R2 Above 6,500 ft Northeast 1
12/22/2020 - 05:30
Forecaster Observation -
Hard Slab Natural D2.5 , R2 Above 6,500 ft Northwest 3
02/12/2019 - 21:15
Forecaster Observation - WMR Sidecountry
Soft Slab Natural D1.5 , R2 Above 6,500 ft East 1
03/09/2020 - 10:00
Park Creek
Loose Dry/ Sluff Natural D1.5 , R2 Above 6,500 ft North 20
Going to the Sun Road Wet Slab Natural
Cornice Fall Triggered
D2 , R2 Above 6,500 ft Northeast 1
02/20/2020 - 01:00
Flathead Range
Wet Loose Natural D1.5 , R1 Below 5,000 ft South 1
02/23/2020 - 15:00
Forecaster Observation - Northern Swan Range
Wet Loose Natural D1 , R1 Below 5,000 ft North 2
04/09/2019 - 12:00
Forecaster observation: Marias Pass
Wet Loose Natural D1.5 , R1 Below 5,000 ft Northwest 1
03/21/2019 - 19:15
Forecaster Observation - Southern Swan Range
Wet Loose Natural D2.5 , R3 Below 5,000 ft South 1
04/03/2020 - 14:15
BNSF Avalanche Safety - Wahoo Ridge/Path 1183
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 , R1 Below 5,000 ft North 5
03/14/2020 - 15:30
Cascadilla Creek
Loose Dry/ Sluff Natural D1 Below 5,000 ft East 6
03/17/2019 - 22:30
Forecaster Observation - Snowshed Mountain
Wet Loose Natural D1.5 , R3 Below 5,000 ft North 1
02/12/2020 - 13:30
Forecaster Observation - Flathead Range
Loose Dry/ Sluff Natural D1 , R1 Below 5,000 ft South 3
01/24/2020 - 10:15
Forecaster Observation - Southern Whitefish Range
Wet Loose Natural D1 , R1 Below 5,000 ft Southwest 1
03/01/2019 - 16:45
Forecaster Observation - Hellroaring, Canyon Creek
Hard Slab Natural D1 , R3 Below 5,000 ft South 1
03/29/2020 - 15:00
Forecaster Observation - JF Stevens Canyon
Wet Loose Skier D1 , R2 Below 5,000 ft North 4
02/12/2020 - 15:00
Forecaster Observation - Middle Fork
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 , R1 Below 5,000 ft East 5
04/04/2020 - 12:00
Forecaster Observation - Middle Fork
Wet Loose Unknown D1 , R1 Below 5,000 ft Northwest 1
02/13/2019 - 06:00
Forecaster Observation - Middle Fork/ Bear Creek corridor
Soft Slab Natural D1.5 , R2 Below 5,000 ft Southeast 1

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