24-25

On Feb 24 we saw at least 3 rider triggered wind slabs, 4-5 natural wind slab avalanches, and a couple large cornice falls. Strong wid had affected almost every piece of terrain, scouring some slopes, loading others, just stiffening the slab in many areas, and forming fresh drifts on every convex roll and along the edges of trails. Riding was still soft and fairly consistent in many areas. Photo GNFAC

Cooke City, 2025-02-24

On Feb 24 we saw at least 3 rider triggered wind slabs, 4-5 natural wind slab avalanches, and a couple large cornice falls. Strong wid had affected almost every piece of terrain, scouring some slopes, loading others, just stiffening the slab in many areas, and forming fresh drifts on every convex roll and along the edges of trails. Riding was still soft and fairly consistent in many areas. Photo GNFAC

Cooke City, 2025-02-24

On Feb 24 we saw at least 3 rider triggered wind slabs, 4-5 natural wind slab avalanches, and a couple large cornice falls. Strong wid had affected almost every piece of terrain, scouring some slopes, loading others, just stiffening the slab in many areas, and forming fresh drifts on every convex roll and along the edges of trails. Riding was still soft and fairly consistent in many areas. Photo GNFAC

 

Cooke City, 2025-02-24

While looking for a recent avalanche from the flat bench above we triggered a similar sized slide directly adjacent to the previous slide. They broke on weak layers of facets and surface hoar that formed at the end of January. 2-3 feet deep and 150-200' wide. Photo: GNFAC

Cooke City, 2025-02-24

While looking for a recent avalanche from the flat bench above we triggered a similar sized slide directly adjacent to the previous slide. They broke on weak layers of facets and surface hoar that formed at the end of January. 2-3 feet deep and 150-200' wide. Observing the snowpack that caused the avalanche. Photo: GNFAC

Cooke City, 2025-02-24

While looking for a recent avalanche from the flat bench above we triggered a similar sized slide directly adjacent to the previous slide. They broke on weak layers of facets and surface hoar that formed at the end of January. 2-3 feet deep and 150-200' wide. Photo: GNFAC

Cooke City, 2025-02-24

While looking for a recent avalanche from the flat bench above we triggered a similar sized slide directly adjacent to the previous slide. They broke on weak layers of facets and surface hoar that formed at the end of January. 2-3 feet deep and 150-200' wide. Photo: GNFAC

Cooke City, 2025-02-24

While looking for a recent avalanche from the flat bench above we triggered a similar sized slide directly adjacent to the previous slide. They broke on weak layers of facets and surface hoar that formed at the end of January. 2-3 feet deep and 150-200' wide. Photo: GNFAC

 

Cooke City, 2025-02-24

Skier triggered wind slabs in Republic Creek

Republic Creek
Cooke City
Code
SS-AS-R2-D1-I
Elevation
9800
Aspect
W
Latitude
44.98550
Longitude
-109.94100
Notes

We were able to easily to trigger a couple wind slab avalanches on test slopes.

Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
R size
2
D size
1
Bed Surface
I - Interface between new and old snow
Problem Type
Wind Slab
Slab Thickness
6.0 inches
Vertical Fall
30ft
Slab Width
30.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year