Snowpit at Bridger Bowl on 11/5. Photo: B. VandenBos
24-25
Photo: S. Bonucci
Avalanche Details: Climber triggered wind slabs at the Sphinx
Forecast link: GNFAC Avalanche Forecast for Wed Nov 6, 2024
Southern Madison, 2024-11-05
Forecast link: GNFAC Avalanche Forecast for Wed Nov 6, 2024
From obs.: "Triggered a small wind slab: -9600' -N aspect on the NW ridge of Sphinx Mountain -Strong SW wind
-Noticed oth er small crowns, likely triggered from another party traversing the north-facing bowl at similar elevations" Photo: S. Bonucci
Avalanche Details: Climber triggered wind slabs at the Sphinx
Forecast link: GNFAC Avalanche Forecast for Wed Nov 6, 2024
Southern Madison, 2024-11-05
Forecast link: GNFAC Avalanche Forecast for Wed Nov 6, 2024
Wind Slabs at the Sphinx
Date
Activity
Ice Climbing
Triggered a small wind slab:
-9600'
-N aspect on the NW ridge of Sphinx Mountain
-Strong SW wind
-Noticed other small crowns, likely triggered from another party traversing the north-facing bowl at similar elevations
Region
Southern Madison
Location (from list)
Sphinx Mountain
Observer Name
Steph Bonucci
Early season avalanche, outside advisory area
Out of Advisory Area
Code
N-R2-D2
Elevation
9400
Aspect
E
Latitude
45.30290
Longitude
-110.63500
Notes
Number caught
0
Number buried
0
Trigger
Natural trigger
R size
2
D size
2
Problem Type
Wind-Drifted Snow
Vertical Fall
800ft
Slab Width
70.00ft
Images
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Avalanche observed on Chico Baldy above Mill Creek in Paradise Valley. East aspect at about 9400'. Possibly a wind slab but hard to tell
Avalanche Details: Early season avalanche, outside advisory area
Forecast link: GNFAC Avalanche Forecast for Wed Nov 6, 2024
Out of Advisory Area, 2024-11-04
Forecast link: GNFAC Avalanche Forecast for Wed Nov 6, 2024
Early season avalanche
Date
Avalanche observed on Chico Baldy above Mill Creek in Paradise Valley. East aspect at about 9400'. Possibly a wind slab but hard to tell
Region
Out of Advisory Area
Early season snow, Lulu Pass Rd
Date
Drove up Lulu Pass road 1/4 mile from hwy 212. There was 7-8" of snow that fell since November 1 on previously snow-free southerly facing meadows around 8,100'.
Region
Cooke City
Observer Name
Alex Marienthal
From e-mail: "Photo attached from near top of hyalite peak, 11/2. Cracking in recent hard wind slab, I had to really jump hard to make this. Walked on many other hard slabs that were well bonded. Highly variable snowpack. I think you'd be most likely to get into trouble by popping out a small hard slab pocket like this and getting magic carpeted into some thinly covered terrain." Photo: B. VandenBos