24-25

Wind slabs reactive at bridger bowl

Date
Activity
Snowboarding

Very reactive wind slabs developed overnight. 6-30inches thick. 

Region
Bridger Range
Location (from list)
Bradley Meadow
Observer Name
Zach bailey

Wind Loading in Bradley Meadows

Date
Activity
Skiing

Wind loading on all aspects due to swirling winds. Cracking about 3-12” thick around top of wolverine forest. No signs of persistent slab instability, deep snowpack throughout.

Region
Bridger Range
Location (from list)
Bradley Meadow
Observer Name
Sydney

Thin wind slab in Maid of the Mist

Maid of the Mist
Northern Gallatin
Code
SS-AS-R1-D1-I
Latitude
45.41640
Longitude
-110.97000
Notes

From obs. 1/19: "Wind was swirling in Maid of the Mist yesterday, mostly upslope winds that were transporting snow, but inconsistently and were difficult to predict where they were loading. We did not find widespread wind loading, but did get a very small windslab to release just below the top of the ridge (max 3-4" thickness, see image)."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
R size
1
D size
1
Bed Surface
I - Interface between new and old snow
Problem Type
Wind Slab
Slab Thickness
4.0 inches
Vertical Fall
20ft
Slab Width
20.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

From Obs. "Wind was swirling in Maid of the Mist yesterday, mostly upslope winds that were transporting snow, but inconsistently and were difficult to predict where they were loading. We did not find widespread wind loading, but did get a very small windslab to release just below the top of the ridge (max 3-4" thickness, see image)." Photo: C. Avis

Northern Gallatin, 2025-01-20

Whumphs at Fairy Lake

Fairy Lake
Bridger Range
Code
Elevation
7000
Latitude
45.90900
Longitude
-110.95800
Notes

From obs 1/19: "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."

Number of slides
0
Number caught
0
Number buried
0
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year

Long shooting cracks in Cabin Creek

Cabin Creek
Southern Madison
Code
Aspect
SW
Latitude
44.89490
Longitude
-111.22800
Notes

From FB message 1/19: "In between redstreak peak and white peak... The whole slope cracked... the one I stopped on I put my leg in the crack and went to my knee inside the crack"

Screenshots from videos sent in messenger

Number of slides
0
Number caught
0
Number buried
0
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year