24-25

Snowmobile triggered avalanche east of Mt. Abundance

Mount Abundance
Cooke City
Code
HS-AMr-R3-D2-O
Elevation
8800
Aspect
NE
Latitude
45.07730
Longitude
-110.02100
Notes

A rider triggered a slide on Saturday (2/22) on a bench below the east face of Mt. Abundance... Trigger point was from the top while driving by. 2' deep, 250' wide??

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Snowmobile
Trigger Modifier
r-A remote avalanche released by the indicated trigger
R size
3
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Slab
Slab Thickness
24.0 inches
Slab Width
250.00ft
Images
Avalanche from Feb 22
Attached Videos
Avalanches triggered from flat terrain, Cooke City - 24 Feb 2025
Snow Observation Source
Snowmobile triggered avalanche east of Mt. Abundance
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
24-25

Wet Slides Hitting Hyalite Road

Date

From email: Came out of Hyalite around 1:30 today. There were several small slides to the road in the canyon. One slid all the way to bare ground.

Region
Northern Gallatin
Location (from list)
Hyalite - main fork
Observer Name
Tom Olliff

Small Wind Slab on Republic Peak

Republic Mountain
Cooke City
Code
SS-N-R1-D1-I
Latitude
45.00030
Longitude
-109.95400
Notes

Today I saw a very small wind slab on Republic Peak. Crown was 10 feet wide. No other avalanches observed 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
1
D size
1
Bed Surface
I - Interface between new and old snow
Problem Type
Wind Slab
Slab Width
10.00ft
Snow Observation Source
Small Wind Slab on Republic Peak
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
24-25

Small Wind Slab on Republic Peak

Date
Activity
Skiing

Today I saw a very small wind slab on Republic Peak. Crown was 10 feet wide. No other avalanches observed 

Region
Cooke City
Location (from list)
Republic Mountain
Observer Name
Jake Mundt

Wet Snow Avalanches Hit Hyalite Road

Hyalite - main fork
Northern Gallatin
Code
WL-N-R1-D1-O
Aspect
W
Latitude
45.44720
Longitude
-110.96200
Notes

From Text message: “Clean up on aisle hyalite!  Couple small wet slides between the retaining wall and practice rock, big enough to reduce the road to one lane.”

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
R size
1
D size
1
Bed Surface
O - Old snow
Problem Type
Loose Wet
Images
Wet Snow Avalanches Hit Hyalite Road
Snow Observation Source
Wet Snow Avalanches Hit Hyalite Road
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
24-25

Wet Snow Avalanches Hit Hyalite Road

Date

From Text message: “Clean up on aisle hyalite!  Couple small wet slides between the retaining wall and practice rock, big enough to reduce the road to one lane.”

Region
Northern Gallatin
Location (from list)
Hyalite - main fork
Observer Name
Kyle Marvinney

Snowmobile Triggered Avalanche Near Lulu Pass

Lulu Pass
Cooke City
Code
SS-AMu-R1-D1-I
Elevation
9700
Aspect
E
Latitude
45.06820
Longitude
-109.95700
Notes

Observed a snowmobile triggered avalanche today. East facing slope, approx 9700', between Fischer Peak and LuLu pass. Rider was not caught. HS-AMu-D1-R1-I. Observed lots of wind transport and loading from strong w/sw winds today. 

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
1
D size
1
Bed Surface
I - Interface between new and old snow
Problem Type
Wind Slab
Images
Rider triggered wind slab near Lulu Pass
Rider-Triggered Slide Near Lulu Pass
Rider-Triggered Avalanche near Lulu Pass
Snow Observation Source
Snowmobile Triggered Avalanche-Cooke City
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
24-25
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