Lionhead Range
Pinwheels on the flats!
Date
Activity
Snowmobiling
The winds were strong enough combined with the higher humidity snow that pinwheels were actively forming and moving on flat to slightly downhill terrain. I hadn’t seen this often, so I thought it was worth sharing.
Region
Lionhead Range
Observer Name
Travis Hansen
recent small wind slabs at Lionhead
Lionhead Ridge
Lionhead Range
Code
SS-N-R1-D1-S
Elevation
9000
Aspect
E
Latitude
44.71450
Longitude
-111.31800
Notes
We rode out Lionhead Ridge and around the north end to the head of Targhee Creek. Skies started overcast, but cleared through the day as wind calmed from moderate to light out of the west and southwest.... there were two or three shallow small wind slabs below Lionhead Ridge.
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
1
D size
1
Bed Surface
S - Avalanche released within new snow
Problem Type
Wind Slab
Slab Thickness
6.0 inches
Vertical Fall
100ft
Slab Width
30.00ft
Images
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
Mar 9. We rode out Lionhead Ridge... there were two or three shallow small wind slabs below Lionhead Ridge. Photo: GNFAC
Avalanche Details: recent small wind slabs at Lionhead
Forecast link: GNFAC Avalanche Forecast for Tue Mar 11, 2025
Lionhead Range, 2025-03-09
Forecast link: GNFAC Avalanche Forecast for Tue Mar 11, 2025
Mar 9. We rode out Lionhead Ridge... there were two or three shallow small wind slabs below Lionhead Ridge. Photo: GNFAC
Avalanche Details: recent small wind slabs at Lionhead
Forecast link: GNFAC Avalanche Forecast for Mon Mar 10, 2025GNFAC Avalanche Forecast for Tue Mar 11, 2025
Lionhead Range, 2025-03-09
Forecast link: GNFAC Avalanche Forecast for Mon Mar 10, 2025GNFAC Avalanche Forecast for Tue Mar 11, 2025