24-25
Point release Avalanche south slope Two Top
Date
Activity
Snowmobiling
Two Point release avalanches on south slope ofTwo Top
Region
Island Park
Location (from list)
Two Top
Old persistent slab avalanche up Republic Creek
Woody Ridge
Cooke City
Code
SS-N-R3-D3-O
Elevation
10000
Aspect
NE
Aspect Range
N-NE
Latitude
44.95950
Longitude
-109.93500
Notes
We saw one old, but very large persistent slab avalanche further up Republic Creek (pictured). It was on similar aspect and elevation as a somewhat more recent persistent slab in nearby Hayden Creek, North-northeast, 10,000'. It appeared to be 6'+ deep and 500'+ wide. The bed surface and crown had been partially drifted in, so it seemed it was probably at least a week old...
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
3
D size
3
Bed Surface
O - Old snow
Problem Type
Persistent Slab
Slab Thickness
72.0 inches
Slab Width
520.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Deep Persistent Slab Avalanche up Republic Creek
Republic Creek
Cooke City
Code
SS-N-R3-D3-O
Elevation
9800
Aspect
NW
Latitude
44.95600
Longitude
-109.94400
Notes
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
3
D size
3
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
48.0 inches
Vertical Fall
800ft
Slab Width
1500.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Wet loose avalanches in Sheep Creek
Sheep Creek
Cooke City
Code
WL-N-R1-D1
Aspect
S
Latitude
45.03440
Longitude
-109.98400
Notes
We spotted several loose wet avalanches that occurred yesterday in steep, rocky terrain up Sheep Creek.
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
R size
1
D size
1
Problem Type
Wet Snow
Attached Videos
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
We also spotted a small, snowmobile triggered avalanche on a steep, east facing slope in Muddy Creek. Photo: USFS Snow Rangers
Saw this cool illustration of wind deposition, scouring and unaffected snow on a ridge line near the top of Bear Creek at the far end of Buck Ridge. Photo: USFS Snow Rangers
Wind Deposition and Scour on Buck Ridge
Date
Activity
Snowmobiling
Saw this cool illustration of wind deposition, scouring and unaffected snow on a ridge line near the top of Bear Creek at the far end of Buck Ridge. The lighting really helped too. Ridge top is scoured and piled onto the lee slope and there is a very clear line between hard wind slab and relatively unaffected snow where the old snowmobile tracks are.
We also spotted a small, snowmobile triggered avalanche on a steep, east facing slope in Muddy Creek.
Region
Northern Madison
Location (from list)
Buck Ridge
Observer Name
USFS Snow Rangers