21-22

Natural Avalanches Woody Ridge

Woody Ridge
Cooke City
Code
SS-N-R2-D2-I
Elevation
10250
Aspect
E
Latitude
44.97390
Longitude
-109.92400
Notes

From Facebook, "East side of Woody Ridge has several natural slab avalanches this morning. All appear to be triggered by Loose Dry naturals and looked to be 1-2' deep. Main face of Climax went R3"

Number of slides
3
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
I - Interface between new and old snow
Problem Type
Persistent Weak Layer
Slab Thickness
30.0 centimeters
Weak Layer Grain type
Near surface faceted particles
Images
Natural Avalanches Woody Ridge 2
Natural Avalanches Woody Ridge 1
Attached Videos
New snow, buried weak layers, Cooke - 6 Feb 2022
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
21-22

Small natural avalanches near Cooke City

COOKE CITY
Cooke City
Code
SS-N-R1-D1
Elevation
8700
Latitude
45.02020
Longitude
-109.93800
Notes

photo from IG on 2/6/22

separate obs 26/22: "Small natural soft slab avalanche on a SE aspect at 8737'... Crown was 20cm deep and  approximately 15m wide.I believe it ran on the NSF below the recent storm snow. I think it happened around 10am."

Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
1
D size
1
Problem Type
New Snow
Slab Thickness
10.0 inches
Images
Small Natural avalanches near Cooke City
Natural avalanche in YNP near Cooke
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
21-22

On Sunday, February 6, Gallatin Country Sheriff Search and Rescue and the GNFAC responded to a avalanche in Lionhead. A snowmobiler was killed on a small steep slope when a shallow avalanche carried him into a terrain trap of trees. Photo: GNFAC

Avalanche Details: Fatal Avalanche Ski Hill
Forecast link: GNFAC Avalanche Forecast for Mon Feb 7, 2022
Lionhead Range, 2022-02-06
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    • Natural on Miller Mtn near Cooke

    Miller Mtn.
    Cooke City
    Code
    SS-N-R2-D2
    Elevation
    9500
    Aspect
    N
    Latitude
    45.04650
    Longitude
    -109.97700
    Notes

    We saw this natural avalanche on Feb 6, 2022 on the north side of Miller Mtn. near Cooke City. It appears to have broke near the end of the 10-14" snow storm that fell the prior day (2/5).

    Number of slides
    1
    Number caught
    0
    Number buried
    0
    Avalanche Type
    Soft slab avalanche
    Trigger
    Natural trigger
    R size
    2
    D size
    2
    Problem Type
    New Snow
    Slab Thickness
    12.0 inches
    Vertical Fall
    600ft
    Slab Width
    250.00ft
    Images
    Natural avalanche on Miller Mtn.
    Slab Thickness units
    inches
    Single / Multiple / Red Flag
    Single Avalanche
    Advisory Year
    21-22
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