Weather and Avalanche Log for Mon Jan 20, 2025
Temps -27 to -15 F
24-25
Poor Profile and Test Score at Fairy Lake
Date
Activity
Skiing
ECTP22 at 20CM. Bottom layer is a high concern to me. We experienced whumphs the entire walk in from the parking lot and had a pretty sketchy time attempting to ski a glade directly above fairy lake. The refrozen snow above the weak layer also adds some false security at a glance.
Region
Bridger Range
Location (from list)
Fairy Lake
Wolverine Basin
Date
Activity
Skiing
Snow depth 160 and generally stabile conditions with the lower layers gaining some strength at this location. ECTX x3 in this area. Old wind slab observed in the area but no signs of instability on that layer.
Region
Bridger Range
Location (from list)
Wolverine Bowl
Observer Name
Christopher Pruden
Hyalite Canyon
Date
Activity
Skiing
Aspect: East
Elevation: ~9000ft
Snow Depth: 155cm
Pit:
- 155-20cm 1F
- 20-0cm 4F/Fist
- ICT7 (Thin Crust layer at 135cm)
- ECTX
Snow:
- Wind affect up higher. Stayed out of bowl as our chief concern was triggering a wind slab loaded on the crust layer at 135cm. Did have shooting cracks at the top wind affected area. Great snow otherwise!
Region
Northern Gallatin
Location (from list)
Flanders Creek
Observer Name
David W.
Small soft slab avalanche south of Bradley's Meadow
The Ramp
Bridger Range
Code
SS-ASc-R1-D1-I
Elevation
7800
Aspect
S
Latitude
45.82880
Longitude
-110.93100
Notes
Above Bradley's Meadow, we triggered a small soft slab avalanche on a south facing aspect around 7800'. This avalanche broke in a wind drift, 4" deep in low density new snow, likely on a sun crust or near-surface facets.
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
1
D size
1
Bed Surface
I - Interface between new and old snow
Problem Type
Wind-Drifted Snow
Slab Thickness
4.0 inches
Vertical Fall
40ft
Slab Width
10.00ft
Attached Videos
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
We triggered a small soft slab avalanche on a south facing aspect around 7800'. This avalanche broke in a wind drift, 4" deep in low density new snow, likely on a sun crust or near-surface facets. Photo: GNFAC
We triggered a small soft slab avalanche on a south facing aspect around 7800'. This avalanche broke in a wind drift, 4" deep in low density new snow, likely on a sun crust or near-surface facets. Photo: GNFAC
Avalanche Details: Small soft slab avalanche south of Bradley's Meadow
Forecast link: GNFAC Avalanche Forecast for Mon Jan 20, 2025
Bridger Range, 2025-01-19
Forecast link: GNFAC Avalanche Forecast for Mon Jan 20, 2025