Northern Gallatin

Skier triggered south face Texas meadow

Texas Meadow
Bridger Range
Code
SS-ASu-R3-D2.5-I
Elevation
7500
Aspect
S
Latitude
45.84060
Longitude
-110.93300
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
2.5
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Images
Human Triggered Avalanche, Texas Meadow 2
Human Triggered Avalanche, Texas Meadow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
19-20

Small Natural storm snow avalanches in Gallatin Canyon

Northern Madison
Code
SS-N-R2-D1.5-I
Elevation
6000
Aspect Range
N-E-S-W
Notes

On the drive to Buck Ridge there were widespread 4-6" deep natural slab avalanches in the storm snow on steep slopes, road cuts and river cuts. Some broke "on the ground", where it was bare ground two days ago. This is some evidence of the upside down nature of this storm.

Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
2
D size
1.5
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Slab Thickness
5.0 inches
Vertical Fall
50ft
Slab Width
30.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
19-20

Human triggered and natural on Buck Ridge

Buck Ridge
Northern Madison
Code
SS-AMc-R2-D1.5-I
Elevation
9300
Aspect
NE
Latitude
45.17190
Longitude
-111.38000
Notes

We triggered an avalanche in the second Yellow Mule off Buck Ridge on 2/6/2020. It is on a small roll/cornice "in the flats". It broke within the current 2-3' storm snow,18-24" deep.

We also saw a couple natural avalanche crowns 10-18" deep lower down the drainage. I'm sure there were a ton more crowns there, and probably everywhere. through the forecast area. Visibility was limited to 50-100'.

Number of slides
3
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Snowmobile
Trigger Modifier
c-A controlled or intentional release by the indicated trigger
R size
2
D size
1.5
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Slab Thickness
20.0 inches
Vertical Fall
15ft
Slab Width
25.00ft
Weak Layer Grain type
Precipitation Particles
Slab Layer Grain Type
Precipitation Particles
Images
Snowmobile triggered storm snow avalanche Buck Ridge 2
Snowmobile triggered storm snow avalanche Buck Ridge
Natural storm snow avalanche Buck Ridge
Attached Videos
"Play Safe This Weekend" - 6 Feb 2020
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
19-20

A snowmobiler triggered this avalanche in the second Yellow Mule off Buck Ridge on 2/6/2020 It is on a small roll/cornice "in the flats". It broke within the current 2-3' storm snow. Photo: GNFAC

Avalanche Details: Human triggered and natural on Buck Ridge
Forecast link: GNFAC Avalanche Forecast for Fri Feb 7, 2020
Northern Madison, 2020-02-06
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    • We saw this natural crown that broke within the current 2-3' storm on a small terrain feature. It is in the second Yellow Mule off Buck Ridge on 2/6/2020. Photo: GNFAC

    Avalanche Details: Human triggered and natural on Buck Ridge
    Forecast link: GNFAC Avalanche Forecast for Fri Feb 7, 2020GNFAC Avalanche Forecast for Sat Feb 8, 2020
    Northern Madison, 2020-02-06
    Access other image sizes:
  • Very Large 1200px
  • Large 480px
  • Medium 220px
  • Small 150px
  • Original
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