Date and Time of Avalanche Avalanche Type Trigger Size Starting Elevation Aspectsort descending Number of avalanches
02/11/2019 - 09:30
Forecaster Observation - Lost Johnny, Swan Range
Soft Slab Natural D1 , R1 1
04/01/2020 - 12:00
Southern Whitefish Range
Loose Dry/ Sluff Skier
Intentionally Triggered
D1 Between 5,000 and 6,500 ft 5
01/23/2020 - 16:00
Whitefish Range
Soft Slab Unknown D1 Between 5,000 and 6,500 ft 1
Eastern Flathead range 1
04/10/2019 - 12:00
Forecaster Observation - Flathead Range
Wet Loose Natural D2 , R2 Between 5,000 and 6,500 ft 1
12/19/2017 - 15:45
Forecaster Observation - Middle Fork Corridor
Soft Slab Natural D1.5 , R1 Below 5,000 ft 1
Hwy 2 1
04/11/2018 - 01:00
JFS Canyon and Essex area, Flathead Range
Soft Slab Natural D2 Above 6,500 ft 1
02/17/2018 - 23:15
Spider Bowl
Soft Slab Natural D2 1
Forecaster Observation - Hornet Mountain 1
02/01/2020 - 09:45
Forecaster Observation - Flathead Range
Wet Loose D2 , R1 Between 5,000 and 6,500 ft 3
Big Slide 1
Forecaster Observation - Flathead Range 1
12/05/2018 - 10:45
Forecaster Observation - Heavens Peak, GNP
Loose Dry/ Sluff Natural D1 , R1 Above 6,500 ft 1
01/13/2021 - 01:30
Forecaster Observation: Middle Fork Corridor
Wet Loose Natural D2 , R2 20
Flathead Range 1
02/22/2021 - 13:00
Glacier National Park
Wet Slab Natural D4 , R4 1
03/10/2018 - 12:15
Forecaster Observation- Mt Stanton, GNP
Wet Loose Natural D1 , R1 1
03/30/2019 - 22:15
Essex Creek
1
JFS canyon 1

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