Date and Time of Avalanche Avalanche Type Trigger Size Starting Elevation Aspectsort descending Number of avalanches
12/20/2019 - 13:30
Upper Holland Lake
Hard Slab Natural
Cornice Fall Triggered
D3 Above 6,500 ft 2
01/28/2020 - 11:15
North WMR
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 , R1 Between 5,000 and 6,500 ft 1
12/28/2017 - 12:30
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Skier D1 , R1 1
02/20/2019 - 05:30
Marion Lake
1
02/01/2020 - 01:30
BNSF Avalanche Safety - Flathead Range and JFS Canyon
Unknown Natural D2 Above 6,500 ft 1
04/23/2018 - 17:45
Little Dog
1
01/09/2018 - 20:30
Forecaster Observation - Skiumah, Flathead Range
Soft Slab Natural D1.5 , R1 Between 5,000 and 6,500 ft 1
Jewel Basin yurt 1
12/13/2019 - 10:00
Forecaster Observation - Southern Whitefish Range
Soft Slab AE D1.5 Between 5,000 and 6,500 ft 2
03/03/2018 - 10:00
Forecaster Observation - Rescue Creek, Flathead Range
Wet Loose Natural D1 , R1 1
Graves creek 1
03/16/2020 - 13:30
Forecaster Observation- Northern Whitefish Range
Wet Loose Natural D1.5 , R1 Above 6,500 ft 8
03/22/2019 - 17:30
Glacier Park Traverse
Wet Slab D3 1
01/21/2018 - 20:30
Tranquil Basin, Flathead Range
1
Elk Mt GNP 1
03/10/2018 - 12:00
Forecaster Observation- Mt Adams, Flathead Range
Wet Loose Natural D1 , R1 1
03/19/2019 - 17:15
JFS Canyon
Wet Slab Natural D3 , R3 Between 5,000 and 6,500 ft 1
02/13/2019 - 00:30
Forecaster Observation - Marion Lake, Flathead Range
Soft Slab Natural 5000-7000' 1
Swan River State Forest 1
01/13/2021 - 05:00
Forecaster Observation - Northern Swan
Soft Slab Natural D2 Between 5,000 and 6,500 ft 25

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