Date and Time of Avalanche Avalanche Type Trigger Size Starting Elevationsort ascending Aspect Number of avalanches
04/12/2022 - 12:30
Forecaster Observation - northern Flathead Range
Loose Dry/ Sluff Natural D1 , R1 5500 Northwest 1
03/20/2021 - 18:00
Essex
Wet Loose Skier
Accidentally Triggered
D2 , R3 5500 East 1
02/11/2020 - 11:15
Forecaster Observation - Middle Fork
Soft Slab Skier
Remotely Triggered
D1 , R1 5400 Northwest 1
01/10/2020 - 14:45
Forecaster Observation - southern Glacier NP
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 , R1 5400 Southeast 1
04/18/2019 - 12:00
Forecaster Observation - Flathead Range
Wet Loose Natural D2 , R3 5300 North 1
01/13/2021 (All day)
Java
Soft Slab Natural D2.5 5300 Northeast 1
01/31/2022 - 16:30
Forecaster Observation - John F. Stevens Canyon
Soft Slab Skier
Intentionally Triggered
D1 , R2 5250 Southeast 1
04/10/2019 - 10:00
Forecaster observation: Marias Pass
Wet Loose Natural D1 , R2 5200 feet Northwest 1
03/14/2020 - 12:00
Forecaster Observation - Apgar Range and Lake McDonald
Soft Slab Natural D1 , R2 5200 Northeast 1
01/19/2019 - 17:15
Essex Creek
Hard Slab Natural D2.5 5200 Southeast 1
12/05/2020 - 13:00
Granite Park
Wet Loose Natural D1 , R1 5200 South 10
Forecaster Observation - Essex Wet Loose Skier
Intentionally Triggered
D1 5200 Southeast 3
01/30/2020 - 12:30
Cascadilla Creek
Hard Slab Snowboarder
Accidentally Triggered
D2 , R2 5150 North 1
02/09/2020 - 15:00
Forecaster Observation - JFS Canyon
Soft Slab Skier
Accidentally Triggered
D1 , R2 5100 West 1
01/30/2019 - 12:00
Forecaster Observation - Red Meadow Lake
Hard Slab Snowmobiler D1 , R3 5100 Northeast 1
02/13/2019 - 00:30
Forecaster Observation - Marion Lake, Flathead Range
Soft Slab Natural 5000-7000' 1
02/13/2019 - 00:30
Forecaster Observation - Marion Lake, Flathead Range
Loose Dry/ Sluff Natural D1 , R1 5000-7000' 1
02/15/2019 - 18:15
Forecaster Observation - Rescue Creek, Flathead Range
Soft Slab Natural D2 , R3 5000'-7000' South 1
03/15/2022 - 16:00
Mt. Brown
Wet Loose Skier
Accidentally Triggered
D1 , R1 5000' West 3
01/20/2022 - 22:00
Forecaster Observation - Middle Fork
Wet Loose Natural D2 , R2 5000 feet North 2

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