From obs: "Member in our group was on the flank of the slope. Crack shot from beneath sled and triggered the slope from ~ 100’ away. Broke about 75 yards wide, ripped to dirt and travelled a short ways to toe of the slope. North facing, 9220’" Photo: M. Rolfson
23-24
From obs: "Member in our group was on the flank of the slope. Crack shot from beneath sled and triggered the slope from ~ 100’ away. Broke about 75 yards wide, ripped to dirt and travelled a short ways to toe of the slope. North facing, 9220’" Photo: M. Rolfson
Avalanche Details: Remotely Triggered Slide Near First Yellow Mule, Buck Ridge
Northern Madison, 2024-02-10
Natural Avalanche Sheep Mtn., Cooke City
Sheep Mountain
Cooke City
Code
N-R2-D2-O
Aspect
N
Latitude
45.08090
Longitude
-109.93200
Notes
Riders on 02/10/2024 observed several natural avalanches on the north side of Sheep Mountain. This avalanche likely happened naturally as there were no tracks on the slope. However, riders noted that it could of been triggered remotely the day before.
Number caught
0
Number buried
0
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
From obs: "We spotted these fairly fresh looking avalanches all side by side with no apparent tracks leading into them. Likely either natural or remote triggered earlier in the day or overnight." Photo. L. Welles
Avalanche Details: Natural Avalanche Sheep Mtn., Cooke City
Cooke City, 2024-02-10
From obs: "We spotted these fairly fresh looking avalanches all side by side with no apparent tracks leading into them. Likely either natural or remote triggered earlier in the day or overnight." Photo: L. Welles
Avalanche Details: Natural Avalanche Sheep Mtn., Cooke City
Cooke City, 2024-02-10
Two Natural Avalanches near Hebgen Lake
Hebgen Lake
Lionhead Range
Code
SS-N-R2-D2-O
Elevation
9000
Aspect
E
Latitude
44.83810
Longitude
-111.34300
Notes
Skiers on 02/10/2024 saw two avalanches near Hebgen Lake while ascending an east-facing slope at 9000'. These likely broke 24-48 hour prior to when it was observed.
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Width
500.00ft
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
Natural Avalanche Near Hebgen Lake
Hebgen Lake
Lionhead Range
Code
SS-N-R2-D2-O
Elevation
9000
Aspect
E
Latitude
44.83810
Longitude
-111.34300
Notes
Skiers near Hebgen Lake saw a recent avalanche, within the last 12 hours, while ascending an east-facing slope at 9000'. They noted that the avalanche ran "to the trees, almost full path".
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
24.0 inches
Slab Width
200.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
From obs: "There were shooting cracks everywhere, and it looked like the cracks propagated into a slab that would have broken up more if the slope had been steeper. It almost looked like a crevasse field with how many cracks there were. Photo is included but I don't think shows just how broken up that "relatively benign" terrain was. I have never seen anything like that before! " Photo: H. Darby
Two natural avalanches that likely happened in the last 24-48 hours. 500' wide. "Crown line extends basically the entire ridge in the background." Photo. H. Darby
Avalanche Details: Two Natural Avalanches near Hebgen Lake
Lionhead Range, 2024-02-10
The crown of a natural avalanche likely happened in the last 12 hours. This avalanche broke 200' wide, 3-4' deep, and ran "almost full path" to the trees below. Photo: H. Darby
Avalanche Details: Natural Avalanche Near Hebgen Lake
Forecast link: GNFAC Avalanche Forecast for Sun Feb 11, 2024
Lionhead Range, 2024-02-10
Forecast link: GNFAC Avalanche Forecast for Sun Feb 11, 2024