Snowmobiler triggered slide in Lionhead

LIONHEAD AREA
Lionhead Range
Code
SS-AMr-R2-D2
Elevation
9000
Aspect
SE
Latitude
44.73330
Longitude
-111.32500
Notes

A snowmobiler triggered this small, but deep avalanche as he rode under the slope.

From his email, "We were riding as a group of 5. All with beacons ,shovels, probes and 4 with inflate packs. The hill broke as I was side hilling. I was just ahead of it and not knocked off the sled."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Snowmobile
Trigger Modifier
r-A remote avalanche released by the indicated trigger
R size
2
D size
2
Problem Type
Persistent Weak Layer
Slab Thickness units
centimeters