Natural avalanches on Henderson Ridge and Sheep Mtn.

COOKE CITY
Cooke City
Code
HS-N-R2-D2-O
Elevation
10000
Aspect
NE
Aspect Range
NE, SW
Latitude
45.02020
Longitude
-109.93800
Notes

On 1/29/24 On Henderson Bench we could see 2 new avalanches that looked fresh, possibly cornice triggered. It was not windy, so windloading was not the trigger. Regardless, it was disconcerting. Across the Fisher Creek valley we could see a slide on the nose of Sheep Mountain on the same slope that killed a snowmobiler in 2015.

Number of slides
3
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
22.0 inches
Vertical Fall
250ft
Slab Width
150.00ft
Images
2 avalanches on Henderson Ridge
Closeup of avalanche on Henderson ridge
2 natural avalanches on Henderson ridge
An avalanche on the nose of Sheep Mtn
Three avalanches on Henderson peak and ridge
Two natural avalanches on Henderson Bench
Snow Observation Source
Recent avalanches, collapses, instability
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
23-24