Skier triggered avalanche NE of Cooke City

Zimmer Creek
Cooke City
Code
SS-ASu-R3-D2-I
Elevation
9800
Aspect
E
Latitude
45.09990
Longitude
-109.88400
Notes

A skier triggered a low angled slope (29-30 deg). It was new snow that failed on a layer of graupel . Crown was 6” to 2’ at its deepest. Broke 400’ wide, maybe 200’ vert. The skier triggered the slide on slide ent and was not aware of the avalanche until he stopped at the bottom of the run. Skier had a partner, rescue gear and was not caught.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Trigger Modifier
u-An unintentional release
R size
3
D size
2
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Slab Thickness
30.0 centimeters
Vertical Fall
200ft
Slab Width
400.00ft
Weak Layer Grain type
Graupe
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year