Big avalanche on Sheep Mtn., Cooke

Sheep Mountain
Cooke City
Code
HS-AMu-R4-D3-O
Elevation
10000
Aspect
NE
Latitude
45.07220
Longitude
-109.92800
Notes

On 3/9/24 there was a big avalanche on the northeast side of Sheep that was previously not reported. It was there this morning so maybe happened yesterday. 6-8'+ deep, 500' wide R4-D3-O. Maybe/probably rider triggered from below.

Snowmobilers reported witnessing another rider trigger this avalanche and get partially buried.

Number of slides
1
Number caught
0
Number buried
1
Avalanche Type
Hard slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
4
D size
3
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
72.0 inches
Vertical Fall
300ft
Slab Width
500.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year