24-25
Avalanche Details: Snowmobile triggered 3-5' deep hard slab at Lionhead
Lionhead Range, 2025-02-28
Snowmobile triggered slide in Airplane Bowl
Airplane Bowl
Lionhead Range
Code
HS-AMu-R2-D2-O
Elevation
9100
Aspect
SE
Latitude
44.72500
Longitude
-111.32200
Notes
Also, on our way out we saw an avalanche in Airplane Bowl that had been triggered during the day today. This slide also broke on the persistent weak layers, 2-3' deep, 150' wide.
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Slab
Slab Thickness
30.0 inches
Vertical Fall
200ft
Slab Width
150.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Snowmobile triggered 3-5' deep hard slab at Lionhead
Targhee Creek
Lionhead Range
Code
HS-AMu-R4-D3-O
Elevation
9200
Aspect
N
Latitude
44.74130
Longitude
-111.37400
Notes
A rider triggered a huge avalanche in the uppermost reaches of Targhee creek. We discovered it on our way out. The best we could tell looking at their tracks was that they had no idea they triggered it, even though part of their tracks were swept away.
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
4
D size
3
Bed Surface
O - Old snow
Problem Type
Persistent Slab
Slab Thickness
48.0 inches
Vertical Fall
200ft
Slab Width
200.00ft
Weak Layer Grain type
Faceted Crystals
Weak Layer grain size
2.50mm
Images
Attached Videos
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Airplane bowl this afternoon after a rider triggered slide. There is a down track in the middle of the crown face
Avalanche Details: Snowmobile triggered slide in Airplane Bowl
Forecast link: GNFAC Avalanche Forecast for Sun Mar 2, 2025GNFAC Avalanche Forecast for Mon Mar 3, 2025
Lionhead Range, 2025-02-28
Forecast link: GNFAC Avalanche Forecast for Sun Mar 2, 2025GNFAC Avalanche Forecast for Mon Mar 3, 2025
Airplane bowl this morning, no avalanche
Avalanche Details: Snowmobile triggered slide in Airplane Bowl
Lionhead Range, 2025-02-28
A rider triggered a huge avalanche in the uppermost reaches of Targhee creek on a north facing slope at 9200'
Avalanche Details: Snowmobile triggered 3-5' deep hard slab at Lionhead
Lionhead Range, 2025-02-28
A rider triggered a huge avalanche in the uppermost reaches of Targhee creek on a north facing slope at 9200'
A rider triggered a huge avalanche in the uppermost reaches of Targhee creek on a north facing slope at 9200'