Northern Gallatin

Wet loose snow avalanche Mt Blackmore

Mt Blackmore
Northern Gallatin
Code
WL-AS-R1-D1
Elevation
9750
Aspect
SE
Latitude
45.44440
Longitude
-111.00400
Notes

From IG:

Southeast aspect on Mt Blackmore. Unknown time and date. Elevation 9700 to 9800’

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Skier
R size
1
D size
1
Problem Type
Wet Snow
Images
Wet, loose snow avalanche mount Blackmore
Snow Observation Source
Wet loose snow avalanche Mt Blackmore
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
23-24

Wet loose snow avalanche Mt Blackmore

Date
Activity
Skiing

From IG:

Southeast aspect on Mt Blackmore. Unknown time and date. Elevation 9700 to 9800’

Region
Northern Gallatin
Location (from list)
Mt Blackmore
Observer Name
Cooper Daniels

Avalanche on Arden Peak

Date
Activity
Skiing

saw this massive slide that spanned between the "Fat Maid" peak and all the way across Arden from the summit of Palace Butte yesterday.

 

 

 

Region
Northern Gallatin
Observer Name
Paul Neubauer

Divide Basin

Date
Activity
Skiing

Toured on the east ridge of Divide Peak this morning. From the summit, we saw at least three, if not more, large slab avalanche crowns and debris in Divide Cirque and surrounding basins. There were also a handful of visible wet loose slides and point-releases in the area. Winds were blowing out of the north but only really felt at ridge tops. Otherwise, it was incredibly warm. A bit after noon, the upper 6-8 inches of snow surface on the east shoulder had been impacted by the sun and wanted to slide on an old melt freeze crust below the surface. 
 

It was so beautiful up there today but the sun was powerful! The trail up and the basin were heavily impacted with the high temperatures and low wind. 

Region
Northern Gallatin
Location (from list)
Divide Peak

Graupel in Hyalite

Date
Activity
Ice Climbing

Localized observation for the Grotto Falls trailhead and G1 climbing area. An inch of graupel on the surface that probably fell in the late afternoon? I don't know how widespread it is, but very prominent in this area.

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

Natural Avalanches in Swan Creek

Swan Creek
Northern Gallatin
Code
HS-N-R2-D2-O
Aspect
N
Latitude
45.37610
Longitude
-111.09400
Notes

Observed sometime between 03/06/2024-03/13/2024: 

"Just finished a weeklong ski from west Yellowstone to bear canyon, and thought I’d chime in that I didn’t observe anything that hasn’t been reported on already. I saw lots of deep slabs breaking near the ground, primarily on the north half of the compass. But sometimes not!.... It was interesting to see that despite the lack of snow, some avalanches were running almost full track. It seems like after a week of being on the snow I would see some sort of pattern, but I feel like I ended the trip with the same amount of confidence I entered it with, and didn’t feel comfortable exposing myself to hardly anything. 
I attached a couple photos of a slide I saw toward the head end of Swam Creek. The crown was 2-5’ deep and ~2000’ wide, and it stopped within 50’ of old growth timber. "

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Images
Avalanches at the head of Swan Creek, 2
Avalanches at the head of Swan Creek, 1
Snow Observation Source
Deep slabbies
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
23-24

Skiers a few days ago saw several deep natural avalanches near the head of Swan Creek. These avalanches broke 2-5' deep, 2000' wide, and ran "full track". The exact date of when these avalanches happened is unknown but they likely happened over a week ago in the first few days of March. Photo: S. Reinsel

Avalanche Details: Natural Avalanches in Swan Creek
Northern Gallatin, 2024-03-13
Access other image sizes:
  • Very Large 1200px
  • Large 480px
  • Medium 220px
  • Small 150px
  • Original

    • Skiers a few days ago saw several deep natural avalanches near the head of Swan Creek. These avalanches broke 2-5' deep, 2000' wide, and ran "full track". The exact date of when these avalanches happened is unknown but they likely happened over a week ago in the first few days of March. Photo: S. Reinsel

     

     

    Avalanche Details: Natural Avalanches in Swan Creek
    Northern Gallatin, 2024-03-13
    Access other image sizes:
  • Very Large 1200px
  • Large 480px
  • Medium 220px
  • Small 150px
  • Original
    • Subscribe to Northern Gallatin