Forecast link: GNFAC Avalanche Forecast for Mon Nov 15, 2021
Forecast link: GNFAC Avalanche Forecast for Mon Nov 15, 2021
21-22
Forecast link: GNFAC Avalanche Forecast for Mon Nov 15, 2021
Natural wind slabs on Scotch Bonnet
Scotch Bonnet
Cooke City
Code
SS-N-R0-D1.5-I
Elevation
9900
Aspect
SE
Latitude
45.05660
Longitude
-109.95100
Notes
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
0
D size
1.5
Bed Surface
I - Interface between new and old snow
Problem Type
Wind-Drifted Snow
Slab Width
25.00ft
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
Natural on Saddle Peak
Saddle Peak
Bridger Range
Code
SS-N-R1-D2
Elevation
9000
Aspect
NE
Latitude
45.79430
Longitude
-110.93600
Notes
From obs. 11/10: "Fitness skinning around Bridger Bowl yesterday and noticed a fairly large, new avalanche on the east face of the North peak of Saddle. Maybe 100 feet below the ridge, about 100 wide at the crown, ran thru the rock bands but not over the cliff. Was taken back by the clean p propagation " -Albert
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
1
D size
2
Problem Type
Wind-Drifted Snow
Vertical Fall
1100ft
Slab Width
100.00ft
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
From e-mail 11/10/21: "an east aspect around 9900'. HS 63cms. ECTV on facets at 19cms." In this snowpit the slab collapsed above the weak layer when the observer isolated the column to perform an extended column test (ECT), hence the score ECTV (ECT-very easily collapsed and propagated). Photo: B. Fredlund
Forecast link: GNFAC Avalanche Forecast for Fri Nov 12, 2021
From email 11/10: "Wind effect: significant in most upper elevation exposed locations. Westerly winds were moving a lot of snow off the high peaks all day today." Photo: B. Fredlund
A natural avalanche on Saddle Peak on 11/10/21. Strong winds drifted recent snow into thick slabs near the ridge. This slide was probably one of those wind slabs breaking and/or being triggered by a cornice fall. Photo: P. Hinz
Avalanche Details: Natural on Saddle Peak
Forecast link: GNFAC Avalanche Forecast for Fri Nov 12, 2021
Bridger Range, 2021-11-11
Forecast link: GNFAC Avalanche Forecast for Fri Nov 12, 2021