Cooke City

Avalanches above 212

Date

From email: "Two big avalanches observed above the “plug” east of Cooke city. on my ride over this AM. One ran to the road, unclear if it went over it and maybe the groomer ran over the debris. Appear natural or possibly snowmo triggered? " 

Region
Out of Advisory Area
Observer Name
Nick Stayner

Deep avalanches north of Cooke City

Date
Activity
Skiing

From the top of Alp rock today saw a deep avalanche on south facing terrain above star creek 

Saw two more deep avalanches in alp gully. These broke 5 get deep. One is D2 the other is D1

Region
Cooke City
Observer Name
Jake Mundt

Henderson Avalanche

Date
Activity
Snowmobiling

Watched a large avalanche come down the big Avi path on the east side of Henderson.  The avalanche covered many snowmobile tracks from that afternoon.  The crown varied and extended for 1,000 feet below the summit ridge. It was a huge volume of snow that reached Fisher Creek. The snowmobilers were lucky, as it was large enough to be buried deep.  

Region
Cooke City
Location (from list)
Henderson Mountain
Observer Name
Mike Carpenter

New Snow and Slab Avalanches in Cooke City

COOKE CITY
Cooke City
Code
Latitude
45.02020
Longitude
-109.93800
Notes

Guides at Beartooth Powder Guides saw numerous natural avalanches near Cooke City. They noted new snow avalanches on most slopes steeper than 30 degrees. Additionally, they saw several avalanches that broke several feet deep on east, southeast, and southwest-facing terrain. 

Number caught
0
Number buried
0
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

Cooke City Observations 03/02

Date
Activity
Skiing

Guides at Beartooth Powder Guides saw numerous natural avalanches near Cooke City. They noted new snow avalanches on most slopes steeper than 30 degrees. Additionally, they saw several avalanches that broke several feet deep on east, southeast, and southwest-facing terrain. 

Region
Cooke City
Location (from list)
COOKE CITY
Observer Name
Beartooth Powder Guides

Rider Triggered Avalanche on Henderson Mountain

Henderson Mountain
Cooke City
Code
HS-AMr-R3-D3-O
Aspect
E
Latitude
45.05240
Longitude
-109.94500
Notes

Riders triggered a very large avalanche on the east side of Henderson Mountain while riding across a slope below. No one was caught in the avalanche and the debris pile was estimated 20' deep in spots. 

From another obs. "Watched a large avalanche come down the big Avi path on the east side of Henderson.  The avalanche covered many snowmobile tracks from that afternoon.  The crown varied and extended for 1,000 feet below the summit ridge. It was a huge volume of snow that reached Fisher Creek. The snowmobilers were lucky, as it was large enough to be buried deep."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Snowmobile
Trigger Modifier
r-A remote avalanche released by the indicated trigger
R size
3
D size
3
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
60.0 inches
Vertical Fall
1500ft
Slab Width
1000.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Riders triggered a very large avalanche on the east side of Henderson Mountain while riding across a slope below. No one was caught in the avalanche and the debris pile was estimated 20' deep in spots. Photo: J. Tocco

Cooke City, 2024-03-02

Riders triggered a very large avalanche on the east side of Henderson Mountain while riding across a slope below. No one was caught in the avalanche and the debris pile was estimated 20' deep in spots. Photo: J. Tocco

Cooke City, 2024-03-02