Plumes of drifting snow in the Bridger Range as strong winds blasted the mountains. Photo: GNFAC
Trip Planning for Southern Gallatin
Primary Problem: Persistent Weak Layer
Bottom Line: You can easily trigger wind slab avalanches large enough to bury a person which break below thick drifts of yesterday’s snow, and you can trigger potentially larger persistent slab avalanches that break on weak layers deeper in the snowpack. Persistent slab avalanches can break hundreds of feet wide and can be triggered from lower angle terrain connected to slopes steeper than 30 degrees. Your safest choice is terrain that is less than 30 degrees steep, and not connected to or below anything steeper.Past 5 Days
Thu Dec 26
Considerable
Considerable
Fri Dec 27
Considerable
Considerable
Sat Dec 28
Considerable
Considerable
Sun Dec 29
High
High
Today
High
High
Relevant Photos
Displaying 1 - 15
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From IG: On 12/15 "Storm slab broke about 200’ above us as skinning up the hallway coming from the north side on the throne." Photo: Anonymous
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Gusty winds transporting snow in Taylor Fork on Saturday. Triggered a 4-5 inch deep wind slab that propagated about 50 ft at the top of a north east facing slope at 9,500 ft.
Photo: JP
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WE facing snow at 8100 ft Cabin Ck
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SE facing snow Cabin Creek
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N facing snow Cabin Creek, 9000 ft
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Big Sky Ski Patrol triggered this avalanche during mitigation work in The Wave on 11/26/24... "2-3' deep on an ice crust just above the ground with a 2# shot in the Upper rodeo. Volume was limited as most of the snow was loaded just underneath the cornice, but still produced a sizeable size 2... Other paths in the Lenin region ran meaty wind slabs, full track with no significant step downs." Photo: BSSP
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Cracking on old, faceted, October snow hundreds of feet long. North facing near treeline. Photo: BSSP
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Intentional, human-triggered avalanche by a ski patrol breaking at the ground on a north facing slope near treeline. Photo: BSSP
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Snowpit at Bridger Bowl on 11/5. Photo: B. VandenBos
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From e-mail: "Photo attached from near top of hyalite peak, 11/2. Cracking in recent hard wind slab, I had to really jump hard to make this. Walked on many other hard slabs that were well bonded. Highly variable snowpack. I think you'd be most likely to get into trouble by popping out a small hard slab pocket like this and getting magic carpeted into some thinly covered terrain." Photo: B. VandenBos
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From obs: "1-3 mm faceting in front of the Montage. Clear skys and mid 20 temps"
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On October 17, rain turned to snow and blanketed the mountains of southwest Montana with a fresh coat of snow. Photo: Yellowstone Club Webcam
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On October 17, rain turned to snow and blanketed the mountains of southwest Montana with a fresh coat of snow. Photo: Bridger Bowl Webcams
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The 26th annual fundraiser for the Friends of the GNFAC is October 25 at the Emerson Cultural Center. More info and tickets at: https://events.eventgroove.com/event/Powder-Blast-2024-101627
Videos- Southern Gallatin
WebCams
Electric Peak
Roosevelt Arch
Weather Stations- Southern Gallatin
Weather Forecast Southern Gallatin
Extended Forecast for17 Miles SE Big Sky MT
Winter Weather Advisory December 30, 07:45am until December 30, 11:00amClick here for hazard details and duration ...-
Winter Weather Advisory December 30, 07:45am until December 30, 11:00am
NOW until 11:00am Mon
Winter Weather Advisory
Today
High: 22 °F
Chance Snow
ShowersTonight
Low: 9 °F
Slight Chance
Snow ShowersTuesday
High: 19 °F
Slight Chance
Snow Showers
then Partly
SunnyTuesday Night
Low: 5 °F
Mostly Cloudy
New Year's Day
High: 18 °F
Snow Showers
LikelyWednesday Night
Low: 10 °F
Chance Snow
ShowersThursday
High: 23 °F
Chance Snow
ShowersThursday Night
Low: 17 °F
Chance Snow
Showers