23-24

Rollerballs at the Throne

The Throne
Bridger Range
Code
WL-N
Elevation
8500
Aspect
E
Latitude
45.88220
Longitude
-110.95200
Notes

From IG 3/9/24: "Currently on the throne. Things warmed up quickly this morning. Wet loose, east aspect, 8500’, 10:30"

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
Problem Type
Wet Snow
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Big avalanche on Sheep Mtn., Cooke

Sheep Mountain
Cooke City
Code
HS-AMu-R4-D3-O
Elevation
10000
Aspect
NE
Latitude
45.07220
Longitude
-109.92800
Notes

On 3/9/24 there was a big avalanche on the northeast side of Sheep that was previously not reported. It was there this morning so maybe happened yesterday. 6-8'+ deep, 500' wide R4-D3-O. Maybe/probably rider triggered from below.

Snowmobilers reported witnessing another rider trigger this avalanche and get partially buried.

Number of slides
1
Number caught
0
Number buried
1
Avalanche Type
Hard slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
4
D size
3
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
72.0 inches
Vertical Fall
300ft
Slab Width
500.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

On 3/9/24 there was a big avalanche on the northeast side of Sheep that was previously not reported. It was there this morning so maybe happened yesterday. 6-8'+ deep, 500' wide R4-D3-O. Photo: GNFAC

Cooke City, 2024-03-09

Natural Avalanches Alex Lowe

Date
Activity
Snowboarding

From the ridge between Blackmore and Elephant we saw multiple natural large slab avalanches in the upper South Cotttonwood drainage. More natural avalanches not shown, mostly on northerly aspects. Appeared fairly recent and deep. Decided against skiing Alex Lowe and opted for good turns on Blackmore. Warm with moderate/strong southwest winds, minor transport.

Region
Northern Gallatin
Location (from list)
Alex Lowe Peak
Observer Name
Logan Gabrielson

Rollerballs at the Throne

Date
Activity
Skiing

From IG 3/9/24: "Currently on the throne. Things warmed up quickly this morning. Wet loose, east aspect, 8500’, 10:30"

Region
Bridger Range
Location (from list)
The Throne
Observer Name
Tyler Miller

Loose naturals and wind loading in the bridgers

Date
Activity
Skiing

Skied into Frazier basin today. Saw multiple wet loose slides on the SE face across the basin. Winds were stripping many ridge lines and loading N aspects. No avalanches related to wind loading were observed. Pit at the bottom of the basin on a SE aspect around 8200 feet had HS 185 and showed Ectx. 

Region
Bridger Range
Location (from list)
Frazier Basin
Observer Name
Charlie Bayles