Date and Time of Avalanche Avalanche Type Triggersort descending Size Starting Elevation Aspect Number of avalanches
12/21/2019 - 15:15
Forecaster Observation - McDonald Creek/ Middle Fork
Loose Dry/ Sluff Natural D1 , R1 Between 5,000 and 6,500 ft West 2
02/27/2018 - 12:45
Forecaster Observation- Skiumah, Flathead Range
Soft Slab Natural D1.5 , R1 Above 6,500 ft East 1
12/15/2018 - 18:15
Forecaster Observation - Mt. Adams, Flathead Range
Soft Slab Natural D2 , R2 Above 6,500 ft 1
03/20/2019 - 17:15
JFS Canyon
Wet Slab Natural D3 , R3 Between 5,000 and 6,500 ft 1
01/13/2018 - 05:00
Forecaster Observation - Crystal Cr, Flathead Range
Hard Slab Natural D4 , R4 Above 6,500 ft North 1
03/16/2018 - 16:15
Forecaster Observation - Canyon Creek, southern Whitefish Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft South 1
01/08/2021 - 14:00
Noisy Basin
Cornice Natural 1
04/09/2020 - 12:15
Flathead Range
Wet Loose Natural D2 , R2 Between 5,000 and 6,500 ft Southeast 1
12/05/2020 - 15:00
Southern Flathead Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft South 3
03/21/2020 - 13:15
tunnel
Wet Loose Natural D1 3
12/20/2019 - 13:00
Forecaster Observation- Central Glacier Park
Unknown Natural D2.5 , R3 Northwest 1
03/09/2018 - 19:15
Forecaster Observation - Tunnel Ridge, Flathead Range
Soft Slab Natural D2.5 , R3 Above 6,500 ft East 1
01/06/2019 - 12:45
Forecaster Observation - Marion Lake, Flathead Range
Soft Slab Natural D1 , R1 Above 6,500 ft East 1
04/09/2019 - 12:00
Forecaster observation: Marias Pass
Wet Loose Natural D1.5 , R1 Below 5,000 ft Northwest 1
02/23/2021 - 15:30
Forecaster Observations - John F. Stevens Canyon
Unknown Natural D2 , R3 Between 5,000 and 6,500 ft Southwest 1
02/16/2020 - 14:00
Forecaster Observation - Skyland
Unknown Natural
Cornice Fall Triggered
D2 , R2 7300 East 1
03/20/2019 - 14:15
JFS Canyon
Wet Slab Natural D3 Between 5,000 and 6,500 ft 1
01/31/2021 - 12:00
Forecaster Observation - Flathead Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft Southeast 2
03/13/2019 - 22:15
Forecaster Observation - Snowshed Mountain
Soft Slab Natural D1 , R1 7200 East 1
01/13/2021 - 05:15
Ten Lakes
Soft Slab Natural D2.5 , R3 Between 5,000 and 6,500 ft East 11

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