Date and Time of Avalanche![]() |
Avalanche Type | Trigger | Size | Starting Elevation | Aspect | Number of avalanches |
---|---|---|---|---|---|---|
02/24/2021 - 15:00 Back country near Teton Pass Ski Area |
Soft Slab | Natural | D2 , R2 | Above 6,500 ft | East | 2 |
02/24/2021 - 12:45 Forecaster Observations - John F. Stevens Canyon |
Hard Slab |
Artificial (Explosives) Intentionally Triggered |
D3 , R4 | 6150 | Southeast | 1 |
02/24/2021 - 12:15 Forecaster Observations - John F. Stevens Canyon |
Hard Slab |
Artificial (Explosives) Intentionally Triggered |
D3 , R3 | 6700 | Southeast | 1 |
02/24/2021 - 12:00 Essex |
Soft Slab | Natural | D2 | Between 5,000 and 6,500 ft | North | 1 |
02/24/2021 - 12:00 Forecaster Observations - John F. Stevens Canyon |
Hard Slab |
Artificial (Explosives) Intentionally Triggered |
D3 , R3 | 7000 | East | 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 |
02/23/2021 - 13:45 Forecaster Observation: Southern Glacier Park |
Hard Slab |
Skier
Intentionally Triggered |
D2 , R3 | Between 5,000 and 6,500 ft | East | 1 |
02/23/2021 - 11:30 Forecaster Observation: Southern Glacier Park |
Soft Slab |
Skier
Intentionally Triggered |
D1 , R2 | Between 5,000 and 6,500 ft | East | 1 |
02/23/2021 - 11:00 Forecaster Observations - John F. Stevens Canyon |
Hard Slab |
Natural
Cornice Fall Triggered |
D3 , R3 | 6700 | East | 1 |
02/23/2021 - 05:45 Forecaster Observation - Ten Lakes |
Soft Slab | Natural | D1.5 , R2 | Above 6,500 ft | East | 4 |
02/22/2021 - 14:45 Forecaster Observation/Near Miss - Northern Swan |
Soft Slab |
Skier
Accidentally Triggered |
D1.5 , R2 | Above 6,500 ft | Southwest | 1 |
02/22/2021 - 13:00 Glacier National Park |
Wet Slab | Natural | D4 , R4 | 1 | ||
02/21/2021 - 08:00 Forecaster Observation - Swan Range |
Soft Slab |
Natural
Cornice Fall Triggered |
D1 , R1 | Between 5,000 and 6,500 ft | Northeast | 2 |
02/20/2021 - 15:15 Avalanche Accident: Doris Ridge (Snowbiker partially buried and injured) |
Unknown |
Snow Bike (motorized)
Accidentally Triggered |
D2.5 , R4 | Above 6,500 ft | Northeast | 1 |
02/20/2021 - 14:15 Avalanche Near-Miss: Devils Hump |
Hard Slab |
Snowboarder
Remotely Triggered |
D3.5 , R4 | 7250 | West | 1 |
02/20/2021 - 14:00 Avalanche Incident: Dorothy's (snowboarder) |
Hard Slab |
Snowboarder
Accidentally Triggered |
D2 | 6500 | South | 2 |
02/20/2021 - 01:30 Forecaster Observation/Near Miss - Northern Swan |
Soft Slab | Natural | D2 , R2 | Between 5,000 and 6,500 ft | Southeast | 1 |
02/20/2021 - 01:00 Forecaster Observation/Near Miss - Northern Swan |
Soft Slab | Natural | D3 , R4 | Between 5,000 and 6,500 ft | Northeast | 1 |
02/19/2021 - 14:30 Tranquil basin |
Soft Slab |
Skier
Intentionally Triggered |
D1 , R2 | Between 5,000 and 6,500 ft | West | 2 |
02/19/2021 - 14:15 Skook Peak |
Soft Slab |
Snowboarder
Accidentally Triggered |
D2 , R2 | Between 5,000 and 6,500 ft | Southeast | 1 |