20-21

Avalanche in Goose Crk near Cooke

Goose Creek
Cooke City
Code
SS-N-R2-D1.5-O
Elevation
9000
Aspect
N
Latitude
45.09230
Longitude
-109.95100
Notes

From email: "We suspect this happened fresh today, we  wonder if those animal tracks coming in from the left triggered it. North facing, 2 ft crown, (I’d guess), about 9k feet, facing Goose Creek. So our friends (while ski cutting) triggered a  very similar slide on this same aspect/elevation mid afternoon today, about 1/4 mile farther west along this ridge, looked to be same depth."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
2
D size
1.5
Bed Surface
O - Old snow
Slab Thickness
24.0 inches
Vertical Fall
200ft
Slab Width
40.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

From email:"We suspect this happened fresh today (1/9/21), we  wonder if those animal tracks coming in from the left triggered it. North facing, 2 ft crown, (I’d guess), about 9k feet, facing Goose Creek. So our friends (while ski cutting) triggered a  very similar slide on this same aspect/elevation mid afternoon today, about 1/4 mile farther west along this ridge, looked to be same depth." Photo: S. Strenge

Cooke City, 2021-01-10

Tin Cup Pass-Mt. Jefferson-Centennials

Date
Activity
Snowmobiling

Rain crust is still very present in the snowpack. Two natural slab avalanches on north aspect of Reas Peak, one from recent storm and one from previous storm. Photo is from a snowmobile triggered avalanche from 1/9/21, you can see the party and one of the members riding the adjacent slope. Snowpit attached as well.

Region
Island Park
Location (from list)
CENTENNIAL RANGE
Observer Name
Chris Hericks