Trip Planning for Bridgers

as of 5:00 am
Today1″ | 15-30 W
Nov 29 0″ | 15-20 W
Nov 28 2″ | 15-70 W
8100′     11/30 at 12:00
18℉
0.2″New
8500′     11/30 at 12:00
15℉
W - 12mph
Gusts 24 mph
Bottom Line: There is 1-2” of new snow and more is on the way. Wind is strong with gusts of 40-50 mph at the ridgetops, mostly from the southwest. Today, new snow and strong wind will create drifting at all elevations. These thicker slabs of snow could be triggered. Shooting cracks or collapses (whumpfs) in these drifts are signs of instability. I recommend digging down to see what is under your feet or sled. A weak layer of surface hoar or a propagating extended column test should turn you around.
Primary Problem: Wind-Drifted Snow

Past 5 Days

Sat Nov 26

Moderate
Sun Nov 27

Moderate
Mon Nov 28

Moderate
Tue Nov 29

Moderate
Today

Moderate

Relevant Avalanche Activity

Bridger Range
Bridger Bowl
Skier triggered hard wind slab at Bridger
Bridger Bowl
HS-ASc-R2-D1.5-I
Elevation: 7,800
Aspect: NE
Coordinates: 45.8170, -110.9250
Caught: 0 ; Buried: 0

Skier triggered wind slab avalanche around 2pm, along the edge of north Bowl and Bronco near "The John". Crown 6-10" deep and 30 feet wide, hard slab of recent drifted snow. HS-ASc-D1.5. Strong wind blowing steady from the south-southwest and transporting snow, filling in tracks rapidly.

Immediately after this slide, I saw what I assume was skier triggered, slide of similar size a little further down the bowl with crown drifting in. Beacon check of debris produced no signal, barely deep enough to bury someone.


More Avalanche Details
Bridger Range
Bridger Bowl
Skier triggered avalanche NE aspect Bridger.
Incident details include images
Bridger Bowl
HS-ASu-R2-D1.5-I
Elevation: 7,800
Aspect: NE
Coordinates: 45.8264, -110.9290
Caught: 1 ; Buried: 0

From obs: "Triggered a small(d1r1?) wind slab off the bridger chair in bounds at bridger. Little skiers right of bumble chute on the roll over skiers left of bronco. NE face. Rollover around 35 degrees mellowing throughout the run. The face had tracks from earlier today before i triggered the slide. I was able to self arrest and stop myself before being carried. The crown was around 20-25 ft wide and the slide ran roughly 100ft downhill before stopping. Both myself and my partner skied away unharmed."


More Avalanche Details
Bridger Range
Bridger Bowl
Human-Triggered Avalanche In Bridger Gully
Incident details include images
Bridger Bowl
SS-ASu-R2-D1.5-I
Elevation: 7,650
Aspect: E
Coordinates: 45.8156, -110.9230
Caught: 1 ; Buried: 0; Killed: 0

From IG Message: "I read the avalanche report this morning and felt comfortable skiing. we made a plan to ski Bradley’s Meadows but ended up skiing Bridger Gully to the 3 Bears after discussion and feeling comfortable and confident in the snowpack. we did not experience any whoompfing or have any other concerns on the approach. 

The bottom of Bridger Gully to 3 Bears is where I triggered the avalanche. My partner dropped in first and skied safely out of the potential slide area. I followed up and on my first turn, triggered the slide. To me it looked like it was around 8” deep and was around 15’ wide at the crown.

My partner had eyes on me the entire time as the slide carried me about 40-45 yards. I was on top the entire time and was able to ski out at the end. I suffered no injuries. 

We skied out and talked to other skiers about our experience."


More Avalanche Details

Relevant Photos

Displaying 1 - 30
  • Toured up to the NE shoulder on Mt. Blackmore yesterday. Winds were strong and variable, but mostly gusting from the S-SW. A lot of snow was moving around, skin tracks were filled in very quickly, and you could actively see small cornices starting to build on the lee side of the ridge. Photo: H. Darby

  • Saw a group of skiers trigger a small wind slab avalanche on an eastern aspect at around 8,300' in the main fork of Hyalite in "Candy Land" just south of the climb Big League Chew at 2:00pm on Saturday (11/26). Crown looked to be around 2" to 1' and 90' wide. The slide ran maybe 100'. No skiers were caught. Photo: Anon

  • Saw a group of skiers trigger a small wind slab avalanche on an eastern aspect at around 8,300' in the main fork of Hyalite in "Candy Land" just south of the climb Big League Chew at 2:00pm on Saturday (11/26). Crown looked to be around 2" to 1' and 90' wide. The slide ran maybe 100'. No skiers were caught. Photo: Anon.

  • Looking up Skier triggered slide at Bridger on 11/27.

  • View from top of skier triggered slide at Bridger on 11/27: "NE face. Rollover around 35 degrees mellowing throughout the run. The face had tracks from earlier today before i triggered the slide. I was able to self arrest and stop myself before being carried. The crown was around 20-25 ft wide and the slide ran roughly 100ft downhill before stopping. Both myself and my partner skied away unharmed."

  • Crown of skier triggered slide at Bridger on 11/27: "NE face. Rollover around 35 degrees mellowing throughout the run. The face had tracks from earlier today before i triggered the slide. I was able to self arrest and stop myself before being carried. The crown was around 20-25 ft wide and the slide ran roughly 100ft downhill before stopping. Both myself and my partner skied away unharmed."

  • Toured to the ramp and Bradley's Meadow on 11/25 around noon. Temperature was 45 F and wind was calm. Snow surface was moist 5-10cm deep on most slopes. The snow surface on shady slopes above about 8,000' remained dry, despite temperatures above freezing at all elevations. Natural rollerballs and pinwheels on steep, rocky southerly slopes around 7,800'. Photo: GNFAC

  • A skier was caught and carried 40-45 yards in an avalanche on Thanksgiving Day in an area known as Papa Bear at Bridger Bowl. Bridger Bowl is not open, and there are no avalanche mitigation or ski patrol services. Photo: Anonymous

  • A group of skiers sent in this photo to show how windy it was up at Bridger on Thanksgiving Day. The wind was focused at mid-mountain levels and blew from the north to northwest. There was a lot of snow moving around and stripping of snow surfaces. Photo: H Darby

  • Skiers at Bridger Bowl observed a small avalanche near the lower Nose that was likely human-triggered. Photo: T. Chingas

  • Skiers observed a small avalanche below the Nose at Bridger Bowl. They believed it may have been human triggered. Photo: T. Chingas

  • From Obs: "Moderate to strong wind at mid-mountain level with visible transport across and downslope in many locations. Skiing conditions deteriorating in wind affected zones." 

  • From Obs: "Moderate to strong wind at mid-mountain level with visible transport across and downslope in many locations. Skiing conditions deteriorating in wind affected zones."

  • At 1:30pm on 11/23 I intentionally triggered a fresh drift of snow in a narrow avalanche path along the edge of the north bowl at Bridger. Northeast aspect at 7,600’ elevation. The crown was 6-8” deep consisting of snow that fell today, 20’ wide and ran 250’ vertical. SS-ASc-R2-D1.5-I. Photo: GNFAC

  • At 1:30pm on 11/23 I intentionally triggered a fresh drift of snow in a narrow avalanche path along the edge of the north bowl at Bridger. Northeast aspect at 7,600’ elevation. The crown was 6-8” deep consisting of snow that fell today, 20’ wide and ran 250’ vertical. SS-ASc-R2-D1.5-I. Photo: GNFAC

  • Big Sky ski patrol triggered these slides with explosives on 11/22 during routine avalanche mitigation work. The avalanches were hard slabs that averaged 12" deep and broke on a weak layer above a crust on top of snow that fell in October. Photo: BSSP

  • Big Sky ski patrol triggered these slides with explosives on 11/22 during routine avalanche mitigation work. The avalanches were hard slabs that averaged 12" deep and broke on a weak layer above a crust on top of snow that fell in October. Photo: BSSP

  • Toured into divide basin on Friday. Looking at the north face of hyalite peak we saw a slide that went to the ground, and was about 150 feet wide. It possible this slide propagated further, but severe wind loading was actively occurring and it was hard to tell if the crown had been filled back in. We dug a pit at 9300 feet on a SÉ aspect and found a 80-100 cm HS and right side up snow pack with minor faceting below a crust 30 cm from the bottom. 

  • This natural avalanche of wind blown snow narrowly missed hitting two skiers.

    Photo: Anonymous

  • submitted to us via IG: "triggered this large wind slab below Bridger Lift this morning [11/18]. It propagated quite a ways."

  • From obs: "triggered a small wind slab in sluice box today. this was not a surprise as all of the wind loaded areas had shown cracking and instability on the way up. though these other areas exhibited the same instability, this little pocket in sluice was the only spot steep enough to run. wanted to stop and measure slope angle but the dog was getting cold"

    Photo: J. Armer

  • The Bridger Mountains look good with a fresh layer of snow. Photo: GNFAC

  • From obs: "Photos of a small wind slab avalanche (R1 D1)  from yesterday at approximately 7800 feet on the northern end of bradleys meadow. The slide was initiated by the second skier and although the rest of the slope was <30 degrees the starting zone was a NE facing steep cross loaded wind pillow just below the ridge. 

    As my friend was skiing down he saw a crack propagate up and to his left and was able to stop on the side of the path as the snow ran past him. The  crown was approximately 30-40 feet and ran about 100 feet." Photo: G. Roe

  • From obs: "Photos of a small wind slab avalanche (R1 D1)  from yesterday at approximately 7800 feet on the northern end of bradleys meadow. The slide was initiated by the second skier and although the rest of the slope was <30 degrees the starting zone was a NE facing steep cross loaded wind pillow just below the ridge. 

    As my friend was skiing down he saw a crack propagate up and to his left and was able to stop on the side of the path as the snow ran past him. The  crown was approximately 30-40 feet and ran about 100 feet." Photo: G. Roe

  • From IG: "Remotely skier trigger wind slab up on white worm near sac bowl". Photo: C. Howell

  • Small slab avalanche triggered by skier in a small chute near The John and Bronco runs in Bridger Bowl. Propagation from skier’s ski, slab slid down through the chute. Crown maybe 10 feet wide. Slab looked about 6 or 7 inches thick. Looked like a layer of new snow from today and yesterday’s storm sliding on top of an old crust layer. Nobody harmed, just spooked.

  • From obs: "Saw some cracking and propagation of a 6-8" storm slab on steeper terrain near the Bridger Lift. Gentle upslope winds seem to have compacted a slab near some terrain features, and I got a small propagation at the edge of the Sluice Box gully where the slope angle tipped up near 40." Photo: C. Avis

  • While traveling up the Fairy Lake road, we observed the aftermath of an avalanche in October Bowl. The avalanche was D2-D3, start zone was at approximately 9000 ft, north east aspect, crown depth and width is unknown. Photo: H. Bigos-Lowe

  • Skiers found a thin snowpack that is beginning to weaken (facet). Read observation here. Photo: T McCutcheon.

  • Evidence of wind-loading creating the conditions for avalanches in the Bridger Range. Cracking is an indicator of instability. The observer noted this was "Nothing consequential," but this shows that unstable drifts are forming. They will be more consequential where there is more snow and as the wind creates larger drifts. Photo: E Smith

WebCams


Bridger Base Area

Ridge, Looking North

Alpine Apron

Snowpit Profiles- Bridgers

 

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Weather Forecast Bridgers

Extended Forecast for

10 Miles NNE Bozeman MT

Winter Weather Advisory December 1, 06:00pm until December 2, 08:00amClick here for hazard details and duration Winter Weather Advisory
  • This
    Afternoon

    This Afternoon: A 40 percent chance of snow, mainly after 2pm.  Cloudy, with a high near 25. Breezy, with a southwest wind around 22 mph, with gusts as high as 30 mph.  Total daytime snow accumulation of less than a half inch possible.

    Chance Snow
    and Breezy

    High: 25 °F

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 3am.  Cloudy, with a temperature rising to around 26 by 5am. Breezy, with a south southwest wind 22 to 24 mph, with gusts as high as 34 mph.  New snow accumulation of less than a half inch possible.

    Chance Snow
    and Breezy

    Low: 22 °F⇑

  • Thursday

    Thursday: Snow.  High near 31. Breezy, with a southwest wind 22 to 25 mph, with gusts as high as 34 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Snow and
    Breezy

    High: 31 °F

  • Thursday
    Night

    Thursday Night: Snow. The snow could be heavy at times.  Patchy blowing snow after 2am. Low around 11. Wind chill values as low as zero. West wind 15 to 21 mph, with gusts as high as 28 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Heavy Snow
    and Patchy
    Blowing Snow

    Low: 11 °F

  • Friday

    Friday: Snow likely, mainly before 11am.  Mostly cloudy, with a high near 17. West wind 15 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Snow Likely
    then Chance
    Snow

    High: 17 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 6. South southwest wind 16 to 18 mph, with gusts as high as 23 mph.

    Partly Cloudy

    Low: 6 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 24. South southwest wind 16 to 18 mph, with gusts as high as 24 mph.

    Mostly Sunny

    High: 24 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 12. South southwest wind around 16 mph, with gusts as high as 20 mph.

    Partly Cloudy

    Low: 12 °F

  • Sunday

    Sunday: A slight chance of snow.  Mostly sunny, with a high near 25.

    Slight Chance
    Snow

    High: 25 °F

The Last Word

Your field observations are hugely helpful as we build a picture of snowpack stability. Let us know if it was a beautiful day or snowy, deep powder, avalanches seen or just boring riding. Submit your observations on our new page or read them all here.

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