19-20
Forecast link: GNFAC Avalanche Forecast for Fri Nov 1, 2019
Small wind slab triggered in Hyalite
Mt Blackmore
Northern Gallatin
Code
SS-ASc-R0-D1-I
Aspect
S
Latitude
45.44440
Longitude
-111.00400
Notes
Dave Zinn triggered a small wind slab off the ridge on Mt. Blackmore.
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
0
D size
1
Bed Surface
I - Interface between new and old snow
Problem Type
Wind-Drifted Snow
Images
Attached Videos
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Shooting Cracks at Bridger Bowl
Bridger Bowl
Bridger Range
Code
Aspect
N
Latitude
45.81560
Longitude
-110.92300
Notes
Went for a midday skin up Thunder Road during the maelstrom today. It was blowing gale force, mostly from the south but seemingly from all directions at times...here’s a pic from a north facing slope below Thunder Road, about midway up PK. We saw a few more shooting cracks in the flats below the top of PK, and the surface wind slab where this photo was taken was ~10 cm.
Number caught
0
Number buried
0
Problem Type
Wind-Drifted Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year
From an email, "...here’s a pic from a north facing slope below Thunder Road, about midway up PK. We saw a few more shooting cracks in the flats below the top of PK, and the surface wind slab where this photo was taken was ~10 cm."
Photo: J. Boulange
Avalanche Details: Shooting Cracks at Bridger Bowl
Bridger Range, 2019-10-31
We found sensitive wind slabs near ridgelines on Mt. Blackmore and evidence of recent cross-loading. Photo: GNFAC
Avalanche Details: Small wind slab triggered in Hyalite
Forecast link: GNFAC Avalanche Forecast for Fri Nov 1, 2019
Northern Gallatin, 2019-10-30
Forecast link: GNFAC Avalanche Forecast for Fri Nov 1, 2019
Natural avalanches in Hyalite
Hyalite - main fork
Northern Gallatin
Code
SS-N-R1-D1.5-I
Latitude
45.44720
Longitude
-110.96200
Notes
A skier in Hyalite wrote, "Natural activity that I observed was failing at new/old interface and (generally) occurred in predictable, wind loaded locations near ridge lines. The one exception is the avalanche with the freshest debris; looks like it failed right at the end of the storm in a somewhat sheltered, mid-slope location." Photo: B. VandenBos
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
1
D size
1.5
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year