21-22

Natural and Skier Triggered Avalanches near Schlasman's

Bridger Bowl
Bridger Range
Code
SS-N
Aspect Range
S-E-N
Latitude
45.81560
Longitude
-110.92300
Notes

A skier sent a video showing many new snow avalanches around the Schlasman's Lift. 

Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
Problem Type
New Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

Natural Slab Avalanche near Cooke City

COOKE CITY
Cooke City
Code
SS-N-R2-D2-O
Aspect
N
Latitude
45.02020
Longitude
-109.93800
Notes

From email: "I'd hypothesize that this avalanche might have happened sometime yesterday.  There was a light rain event on April 21, and an associated widespread (but minor) wet loose avalanche cycle on steep northerly aspects the same day.  And it appears from the photo that the slabslablanche might have happened subsequent to all the rollerball/ well loose activity.  Yesterday was very warm here also, with a high of 47 deg F at the NE Entrance at noon."

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

From email: "I'd hypothesize that this avalanche might have happened sometime yesterday.  There was a light rain event on April 21, and an associated widespread (but minor) wet loose avalanche cycle on steep northerly aspects the same day.  And it appears from the photo that the slab avalanche might have happened subsequent to all the roller ball/ well loose activity.  Yesterday was very warm here also, with a high of 47 deg F at the NE Entrance at noon." B. Fredlund

Cooke City, 2022-04-24

Skier Triggered Slide Avalanche Gulch

Bridger Bowl
Bridger Range
Code
SS-ASc-R3-D3-I
Elevation
8000
Aspect
E
Latitude
45.81560
Longitude
-110.92300
Notes

A pair of skiers ski cut the main chute of Avalanche Gulch. It propagated widely and ran approximately 800' vertical.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Trigger Modifier
c-A controlled or intentional release by the indicated trigger
R size
3
D size
3
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Vertical Fall
800ft
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Skier Triggered Mad Man's Repeat

Bridger Bowl
Bridger Range
Code
SS-ASu-R3-D2-I
Elevation
8275
Aspect
NE
Latitude
45.81560
Longitude
-110.92300
Notes

A group skied Manman's and triggered the upper chute. When the initial avalanche hit the fan the slide propagated wider and ran "Well past the North Bowl Road"

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Trigger Modifier
u-An unintentional release
R size
3
D size
2
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Vertical Fall
650ft
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Skiers reported shooting cracks from their skis while ascending the terrain at Bridger Bowl. The group later remotely triggered an avalanche from 100'+ away that ran through the "Pearly Gates" and "Patrol Chute". 

Bridger Range, 2022-04-23

Skiers reported shooting cracks from their skis while ascending the terrain at Bridger Bowl. The group later remotely triggered an avalanche from 100'+ away that broke in both "Patrol Chute" and the "Pearly Gates". 

Bridger Range, 2022-04-23

Shooting Cracks at Bridger Bowl

Bridger Bowl
Bridger Range
Code
Latitude
45.81560
Longitude
-110.92300
Notes

Skiers reported shooting cracks from their skis while ascending the terrain at Bridger Bowl. The group later remotely triggered an avalanche from 100'+ away. 

Number of slides
0
Number caught
0
Number buried
0
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year