A massive cornice that has cracked and is slowly making its way towards falling down. Cornice was around 50 feet long, and largely overhanging. On the standard ascent of the East Ridge of Alex Lowe, the skin track usually travels below this cornice while ascending to the ridge. Photo S Lipsteuer
24-25
Wet Loose Avalanche Pioneer Mountain
Other place
Northern Madison
Code
WL-N-R1-D2
Aspect
S
Latitude
45.65530
Longitude
-110.55800
Notes
Natural point release avalanche observed from the YC. Occurred out of bounds on the South side of Pioneer Mountain.
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
R size
1
D size
2
Problem Type
Loose Wet
Images
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Natural point release avalanche observed from the YC. Occurred out of bounds on the South side of Pioneer Mountain. Photo: YC Ski Patrol
Avalanche Details: Wet Loose Avalanche Pioneer Mountain
Northern Madison, 2025-03-01
Natural Wet Loose Avalanches on solar aspects north of Bridger Bowl
Hourglass Chute
Bridger Range
Code
WL-N-R1-D1
Latitude
45.83320
Longitude
-110.93600
Notes
Observed multiple wet loose slides naturally triggering and running on south facing slopes beyond bradleys and on the south facing aspects of hourglass chute.
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
R size
1
D size
1
Problem Type
Loose Wet
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Observed multiple wet loose slides naturally triggering and running on south facing slopes beyond bradleys and on the south facing aspects of hourglass chute.
Avalanche Details: Natural Wet Loose Avalanches on solar aspects north of Bridger Bowl
Bridger Range, 2025-03-01
Observed multiple wet loose slides naturally triggering and running on south facing slopes beyond bradleys and on the south facing aspects of hourglass chute. Photo: T McGarry
Avalanche Details: Natural Wet Loose Avalanches on solar aspects north of Bridger Bowl
Bridger Range, 2025-03-01
Cornice Fall Avalanche in Beehive
Beehive Basin
Northern Madison
Code
C-ARc-R1-D2
Elevation
9100
Aspect
E
Latitude
45.30000
Longitude
-111.39900
Notes
Kicked off a wind slab avalanche 25ft wide on the west ridge of beehive basin. The wind slab was around 8-10ft deep and the debris slid almost to the flat a few hundred feet down the slope. The slide occurred around 9100ft on the east aspect. Neither me nor my partner were carried or caught in the slide.
The windslab that broke off was about 8-10 feet tall. It was mostly a huge section of a cornice that broke and the slope it fell down onto seemed to propagate a few inches down as well. The majority of the debris was from the cornice.
Number caught
0
Number buried
0
Avalanche Type
Cornice fall
Trigger
Snowboarder
Trigger Modifier
c-A controlled or intentional release by the indicated trigger
R size
1
D size
2
Problem Type
Cornice Fall
Slab Width
25.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Falling Cornices
Date
Activity
Skiing
Pictures of two cornice triggered avalanches way up the South Cottonwood drainage that was viewed from Alex Lowe. Looks to be in the recent days, around 9,000 feet North facing.
Also a massive cornice that had cracked and was slowly making its way towards falling down. Cornice was around 50 feet long, and largely overhanging. On the standard ascent of the East Ridge of Alex Lowe, the skin track usually travels below this cornice while ascending to the ridge.
Region
Northern Gallatin
Location (from list)
Alex Lowe Peak
Observer Name
Spencer Lipsteuer