Northern Gallatin

Skiing some dog pow across Hyalite reservoir between 7200-7800’ on a NE pitch I got lots of whumphs and shooting cracks while braking trail. This was a shallower snowpack than most other areas, it was still easy to break into basil facets with skis on.

Northern Gallatin, 2024-02-29

Whumphs in Hyalite

Date
Activity
Skiing

Skiing some dog pow across Hyalite reservoir between 7200-7800’ on a NE pitch I got lots of whumphs and shooting cracks while braking trail. This was a shallower snowpack than most other areas, it was still easy to break into basil facets with skis on.

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

Natural Avalanche off Blackmore Trail

Mt Blackmore
Northern Gallatin
Code
SS-N-R1-D2-O
Aspect
NE
Latitude
45.44770
Longitude
-110.98900
Notes

From IG: This avalanche was from this morning (02/28). It was windy and the gully was likely wind-loaded. One video shows the debris and crown. The pin on the map (below) shows the location of the debris.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
1
D size
2
Bed Surface
O - Old snow
Problem Type
Wind-Drifted Snow
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Natural Avalanche off Blackmore Trail

Date
Activity
Skiing

From IG: This avalanche was from this morning (02/28). It was windy and the gully was likely wind-loaded. One video shows the debris and crown. The pin on the map (below) shows the location of the debris.

Region
Northern Gallatin
Location (from list)
Mt Blackmore

Variable in Hyalite

Date
Activity
Skiing

We noticed that a widespread crust had formed at lower elevations from the recent warm spell, especially in areas without consistent shade. The snow that remained available for transport was easily being picked up by moderate to strong SW winds at treeline. Many tracks had been filled in by the wind transported snow, and a dense, hollow windslab was found in isolated spots.

Region
Northern Gallatin
Location (from list)
Lick Creek
Observer Name
Wyatt Hubbard

From obs: "Several small slabs pulled out above The Shimmy, left of Cleo's. Observed from across the valley while climbing the Dribbles. Did not observe them run, only saw the crowns. Unknown date of avalanches, but crowns were quite distinct from across the way." Photo: M. Zia

Northern Gallatin, 2024-02-24

Avalanches above Cleos

Date
Activity
Ice Climbing

Several small slabs pulled out above The Shimmy, left of Cleo's. Observed from across the valley while climbing the Dribbles. Did not observe them run, only saw the crowns. Unknown date of avalanches, but crowns were quite distinct from across the way.

Lots of wind transport all day.

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