Northern Gallatin

Sluffing and wet slides on blackmore

Date
Activity
Skiing

Sorry no photos, but I toured up blackmore today and saw alot of sluffing on steep terrain and very wet snow on s terrain. I pushed off a small wet slide that built a good amount of momentum and could've ran far if the terrain allowed. I did dig a pit down to the new old snow interface and had no results in an ect.

Region
Northern Gallatin
Location (from list)
Mt Blackmore
Observer Name
Todd Schlotfeldt

New snow slide in divide basin

Divide Cirque
Northern Gallatin
Code
R1-D1.5
Elevation
10000
Aspect
N
Latitude
45.39340
Longitude
-110.96900
Notes

I went for a walk up to divide basin today and noticed a slide in the back of the basin on a high north facing slope , there was 5” of low density snow up high 

Number of slides
1
Number caught
0
Number buried
0
R size
1
D size
1.5
Problem Type
New Snow
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

New snow slide in divide basin

Date
Activity
Snowboarding

I went for a walk up to divide basin today and noticed a slide in the back of the basin on a high north facing slope , there was 5” of low density snow up high 

Region
Northern Gallatin
Location (from list)
Divide Cirque

Big avalanche on Mount Bole

Hyalite - main fork
Northern Gallatin
Code
HS-N-R2-D2
Elevation
10200
Aspect
E
Latitude
45.41580
Longitude
-110.99700
Notes

Big scary avalanche on a wind loaded slope on mount Bole.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Problem Type
Wind-Drifted Snow
Slab Thickness
24.0 inches
Vertical Fall
800ft
Slab Width
200.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Big avalanche on Mount Bole

Date
Activity
Skiing

Big scary avalanche on a wind loaded slope on mount Bole.

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

We skied the ridge north of Blackmore (Tomahawk Ridge?) traveling between 6800' -9200' on SE-NE aspects.

On the ridge above, ~9400' on a NE aspect there was a natural avalanche, maybe cornice failure, probably same timeframe as the Divide slides. ran ~600'.

HS-N-D2-R2-O

Photo: R. Griffiths

Northern Gallatin, 2023-03-10