21-22

Many natural storm snow slab avalanches at Bridger

Bridger Bowl
Bridger Range
Code
SS-N-R2-D1.5-S
Elevation
7500
Aspect Range
NE-E-SE
Latitude
45.81560
Longitude
-110.92300
Notes

There were many similar depth, 8-12" natural crowns along the ridge that broke this morning or overnight within the recent snow that fell over the weekend.

Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
2
D size
1.5
Bed Surface
S - Avalanche released within new snow
Problem Type
New Snow
Slab Thickness
12.0 inches
Vertical Fall
300ft
Slab Width
150.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

Intact gropel layer at bridger l

Date
Activity
Skiing

found a intact graupel layer buried by 10-14” of fresh snow. Got cracking on it (ectn 17, ct 18) but no propagation. Also saw lots old of storm slabs/wind slab crowns. 

Region
Bridger Range
Location (from list)
Bridger Bowl
Observer Name
William

Natural wet slab on Crown Butte

Crown Butte
Cooke City
Code
WS-N-R2-D2-O
Elevation
9800
Aspect
NW
Latitude
45.05250
Longitude
-109.96200
Notes

Natural slab avalanche on Crown Butte. Appears to be a wet slab that likely occurred 5/3 or 5/4/22. This same slope slid after a heavy snow storm a couple weeks ago on 4/23. Photo: @markass406

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

Natural slab near Cooke

COOKE CITY
Cooke City
Code
WS-N-R2-D2-O
Elevation
9000
Aspect
N
Latitude
45.02020
Longitude
-109.93800
Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Wet slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Wet Snow
Slab Thickness
28.0 inches
Vertical Fall
800ft
Slab Width
100.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year