Cooke City

Wind Slabs near Cooke City

Date
Activity
Snowboarding

Lots of wind slabs south of Cooke today. Strong wind all day and lots of blowing snow. 

Region
Cooke City
Location (from list)
Woody Ridge
Observer Name
Noah Mattes

Natural Avalanche on the Fin

Republic Mountain
Cooke City
Code
SS-N-R2-D2
Elevation
9800
Aspect
E
Latitude
45.00500
Longitude
-109.95700
Notes

The clouds broke briefly around noon today in Cooke City. It looks like the Fin slide naturally in the past day or so (12/15 or 12/16). It looks like two sections of the face slid, one from the top, and one lower and to the right in the photo. 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Collapsing on West Henderson

Henderson Mountain
Cooke City
Code
Elevation
10000
Aspect
SW
Latitude
45.04700
Longitude
-109.94000
Notes

As we entered non wind-effected, upper-elevation terrain on Henderson, we consistently triggered many localized collapses and heard audible whumpfs. 

Number of slides
0
Number caught
0
Number buried
0
Problem Type
Persistent Slab
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year

Natural Avalanche on the Fin

Date
Activity
Skiing

The clouds broke briefly around noon today in Cooke City. It looks like the Fin slide naturally in the past day or so. It looks like two sections of the face slid, one from the top, and one lower and to the right in the photo. 

Region
Cooke City
Location (from list)
Republic Mountain
Observer Name
Noah Mattes

Republic Creek Observation

Date

From email: "Steve Harvey and I did a quick pit yesterday (12/16/2024) S. of Cooke in Republic Creek. E. aspect; 9.085'; 30° slope; HS 80 c; 12:30PM, Calm/cool (teens), Lt snow.

 

ECTN21; ECTP24 at 50 cm on buried facets. We declined to continue on slope.

 

We didn't perform a detailed profile, but generally, fist (new snow) and 4-finger above buried facets and progressively 2-finger to 1-finger below.

 

Noticeable Issues:

(1) Low and variable snowpack, 30cm or less under/near trees and on wind-scoured aspects and loading in fetch zones. Something to keep in mind as season progresses with  potential sweet spots in predictable places.

(2) Buried 50 cm facets/hoar that is essentially everywhere in Cooke City zone.

(3) We did not observe buried deep facets at the base of the snowpack."

 

Region
Cooke City
Location (from list)
Republic Creek
Observer Name
Jesse Logan