24-25

Natural wind slab avalanche near Cooke

Wolverine Peak
Cooke City
Code
HS-N-R1-D1.5-S
Elevation
9900
Aspect
E
Latitude
45.05300
Longitude
-110.01000
Notes

On Feb 9 We saw a fresh natural wind slab near Wolverine, R1-D1.5

 

 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Natural trigger
R size
1
D size
1.5
Bed Surface
S - Avalanche released within new snow
Problem Type
Wind Slab
Slab Thickness
12.0 inches
Vertical Fall
200ft
Slab Width
50.00ft
Images
Natural wind slabs on Wolverine
Snow Observation Source
Wind slab avalanches near Cooke
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
24-25

Snowboarder triggered wind slabs (2) near Cooke

Scotch Bonnet
Cooke City
Code
SS-AS-R1-D2-S
Elevation
9500
Aspect
SE
Latitude
45.07330
Longitude
-109.94800
Notes

We watched two snowboarders trigger separate wind slabs, while riding one at a time in avalanche terrain, on the south side of Scotch Bonnet (photos attached). They rode away safely. These looked 12" deep and 20' wide, and entrained snow to run a good distance, R1-D2.

 

Number of slides
2
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
R size
1
D size
2
Bed Surface
S - Avalanche released within new snow
Problem Type
Wind Slab
Slab Thickness
12.0 inches
Vertical Fall
500ft
Slab Width
20.00ft
Images
Snowboarder triggered wind slabs on Scotch Bonnet, full
Snowboarder triggered wind slabs on Scotch Bonnet, crowns
Attached Videos
Natural and human-triggered wind slabs, Cooke - 9 Feb 2025
Snow Observation Source
Wind slab avalanches near Cooke
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
24-25

On Feb 9 we watched two snowboarders trigger separate wind slabs, while riding one at a time in avalanche terrain, on the south side of Scotch Bonnet. Photo: J. Mancey

 

Avalanche Details: Snowboarder triggered wind slabs (2) near Cooke
Forecast link: GNFAC Avalanche Forecast for Mon Feb 10, 2025GNFAC Avalanche Forecast for Tue Feb 11, 2025
Cooke City, 2025-02-10
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    • Two Rider triggered slides in S. Madison

    Date

    From FB message: "Two snowmobiler triggered avalanches in Southern Madison. Riders did not have beacons or rescue equipment. Riders made it out safe luckily."

    Region
    Southern Madison

    Small Avalanche Lionhead today

    Date
    Activity
    Snowmobiling

    We saw this today after it happened. Looked like a snowmobile triggered it. I believe it is mostly south facing. Thanks. 

    Region
    Lionhead Range
    Observer Name
    Derek Haluptzok
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