23-24

Recent Naturals in Island Park

CENTENNIAL RANGE
Island Park
Code
N-R2-D2
Aspect
E
Latitude
44.52780
Longitude
-111.56800
Notes

From IG 2/10/24: “East aspect, southwest of island park from the blue creek trailhead.”

Number of slides
1
Number caught
0
Number buried
0
Trigger
Natural trigger
R size
2
D size
2
Problem Type
Persistent Weak Layer
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Shooting Cracks Cabin Creek

Cabin Creek
Southern Gallatin
Code
Latitude
44.88930
Longitude
-111.20600
Notes

From Obs: "As we were coming out, I spotted this cracking above the creek. A sled has passed nearby on the right side ( you can see the track). The snow cracked and was starting to rub in the left (barely)."

 

Number of slides
0
Number caught
0
Number buried
0
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year

Snowmobiler Triggered Avalanche Centennial Mountains

Hellroaring Creek
Island Park
Code
SS-AMu-R2-D2-O
Elevation
8200
Latitude
44.54900
Longitude
-111.47500
Notes

A group of snowmobilers triggered an avalanche on a low-elevation slope in the Centennial Mountains as they rode near the bottom of a steep slope. No one was caught. 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
24.0 inches
Vertical Fall
100ft
Slab Width
150.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Remote Triggered Avalanche Lionhead

Lionhead Ridge
Lionhead Range
Code
SS-AMr-R3-D2.5-O
Aspect
E
Latitude
44.71450
Longitude
-111.31800
Notes

A group of riders triggered a large avalanche on Lionhead Ridge as they traveled in nearby terrain that was much less steep.

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
3
D size
2.5
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year