Date and Time of Avalanche Avalanche Type Triggersort ascending Size Starting Elevation Aspect Number of avalanches
04/15/2020 - 00:45
Flathead Range
Hard Slab Natural D2 , R2 7000' Northeast 1
12/28/2017 - 11:45
Forecaster Observation - Spider Bowl, Swan Range
Soft Slab Natural D1.5 , R1 Above 6,500 ft 1
01/14/2020 - 12:00
Forecaster Observation - Flathead Range
Soft Slab Natural D1.5 , R2 Between 5,000 and 6,500 ft Southeast 1
03/08/2022 - 10:00
Forecaster Observation - Swan Range
Soft Slab Natural D3 , R4 1
02/24/2021 - 12:00
Essex
Soft Slab Natural D2 Between 5,000 and 6,500 ft North 1
12/15/2019 - 12:00
Slippery Bill Mountain - Puzzle Creek
Soft Slab Natural D2 , R2 7000 East 4
01/18/2019 - 05:15
Forecaster Observation- Jewel Basin, Swan Range
Soft Slab Natural D1.5 , R2 Between 5,000 and 6,500 ft North 1
02/10/2022 - 14:00
Forecaster Observation - Flathead Range
Wet Loose Natural D1.5 , R2 Between 5,000 and 6,500 ft Southeast 3
02/28/2020 - 11:15
Forecaster Observation - Middle Fork and John F. Stevens Canyon
Wet Loose Natural D1.5 6500 Southeast 5
02/10/2020 - 12:30
Forecaster Observation - Flathead Range
Loose Dry/ Sluff Natural D1.5 , R1 Above 6,500 ft 3
02/17/2018 - 22:15
Izak Walton backcountry resort
Soft Slab Natural D2 Above 6,500 ft 1
03/21/2019 - 17:00
Forecaster Observation - Flathead Range
Wet Loose Natural D3 , R3 Above 6,500 ft South 1
05/19/2022 - 12:45
Forecaster Observation - Southern GNP
Glide Natural D3 , R4 8000' Southeast 1
01/19/2020 - 14:45
Forecaster Observation - Apgar Range
Wet Loose Natural D1 , R1 Between 5,000 and 6,500 ft Southwest 5
01/10/2018 - 16:45
Forecaster Observation- Dickey Cr, Flathead Range
Soft Slab Natural Above 6,500 ft Southeast 1
03/15/2022 - 01:45
Forecaster Observation - Kimmerly Basin
Wet Loose Natural D1 , R1 Below 5,000 ft Northeast 2
04/04/2020 - 11:00
Forecaster Observation - Middle Fork
Loose Dry/ Sluff Natural D1 , R1 Between 5,000 and 6,500 ft East 10
12/27/2019 - 17:00
Forecaster observation - Ninko Creek
Loose Dry/ Sluff Natural D1.5 , R1 Above 6,500 ft Northeast 1
03/03/2020 - 12:15
Forecaster observation - northern Whitefish range
Wet Loose Natural D1 , R1 6200 West 6
04/05/2019 - 17:00
Forecaster Observation - Glacier Park
Wet Slab Natural D3 Above 6,500 ft Northwest 1

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