Date and Time of Avalanche Avalanche Type Trigger Size Starting Elevation Aspectsort descending Number of avalanches
03/25/2019 - 19:45
Forecaster Observation - Southern Swan Range
Glide Natural D3 , R3 Between 5,000 and 6,500 ft Southeast 1
01/13/2020 - 08:00
Forecaster Observation - Northern Whitefish Range
Unknown Natural D2 , R2 Southeast 1
02/24/2021 - 12:45
Forecaster Observations - John F. Stevens Canyon
Hard Slab Artificial (Explosives)
Intentionally Triggered
D3 , R4 6150 Southeast 1
12/20/2019 - 15:00
Forecaster Observation - McDonald Creek/ Middle Fork
Hard Slab Natural
Cornice Fall Triggered
D2 , R3 6100 Southeast 1
01/07/2022 - 12:00
Forecaster Observation: Southern Whitefish Range
Soft Slab Natural D1 Below 5,000 ft Southeast 3
01/13/2021 - 04:00
BNSF Avalanche Safety - JFS Canyon
Wet Loose Natural D2 , R2 Between 5,000 and 6,500 ft Southeast 1
04/05/2021 - 17:30
Flathead Range
Wet Loose Natural D1 , R1 Above 6,500 ft Southeast 8
03/14/2020 - 12:15
Flathead Range
Loose Dry/ Sluff Natural D1.5 , R2 Between 5,000 and 6,500 ft Southeast 1
02/13/2019 - 09:30
Forecaster Observation- Grant Ridge, Flathead Range
Soft Slab Natural D3 , R3 Above 6,500 ft Southeast 1
03/11/2021 - 12:15
BNSF Avalanche Safety - JFS Canyon
Hard Slab Natural
Cornice Fall Triggered
D2.5 , R2 7700 Southeast 1
03/02/2022 - 08:00
Lake McDonald Area
Wet Loose Natural D2 Below 5,000 ft Southeast 2
03/16/2020 - 13:15
Forecaster Observation - Northern Flathead Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft Southeast 4
02/21/2020 - 12:15
Flathead Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft Southeast 2
12/16/2021 - 13:00
BNSF Avalanche Safety - Snowslip Mtn. GNP
Soft Slab Skier
Intentionally Triggered
D1 , R3 Between 5,000 and 6,500 ft Southeast 1
05/03/2022 - 10:00
Middle Fork
Wet Loose Natural D1 5500-7000' Southeast 10
12/08/2020 (All day)
BNSF Avalanche Safety - Running Rabbit Mtn GNP
Soft Slab Natural D2 , R4 Between 5,000 and 6,500 ft Southeast 1
01/03/2021 - 10:00
Northern Whitefish Range
Hard Slab Natural D1.5 , R2 Between 5,000 and 6,500 ft Southeast 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
04/04/2020 - 11:45
Forecaster Observation - Flathead Range
Wet Loose Natural D1.5 , R2 Between 5,000 and 6,500 ft Southeast 6
02/26/2022 - 12:00
Forecaster Observation - Middle Fork
Wet Loose Natural D1 , R2 Between 5,000 and 6,500 ft Southeast 12

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