Regional Conditions for Bridgers

as of 5:00 am
Apr 300″ | 15-25 W
Apr 29 0″ | 15-50 W
Apr 28 0″ | 15-36 W
8100′     5/11 at 09:00
43 ℉
7.8″New
8500′   5/11 at 09:00
32 ℉
W - 5 mph
Gusts 9mph
Bottom Line: Spring weather can be highly variable and create a mix of avalanche problems to watch out for. Snow conditions and snow stability can change drastically from day to day or hour to hour. Anticipate rapid change and plan accordingly. Plenty of snowfall over the winter with more spring snow to come makes avalanches possible into summer.

Past 5 Days

Mon Apr 19

None
Fri Apr 23

None
Mon Apr 26

None
Fri Apr 30

None
Mon May 3

None

Avalanche Activity- Bridgers

Northern Madison
Beehive Basin
Skier triggered and natural new snow avalanches in Beehive
Incident details include images
Beehive Basin
SS-AS-R1-D1.5-I
Elevation: 10,000
Aspect: NE
Coordinates: 45.3407, -111.3910
Caught: 0 ; Buried: 0

From obs: 5/9/21: "Yesterday we went to check out the new snow in Beehive Basin.... While traversing... along the north ridge of 10602, we triggered a small wind slab  that carried down into Peruvian, which then released another small wind slab on a northeast aspect of the face (photo). The crown height of this wind slab was measured at 60cm at it's deepest point, and approximately 30ft wide by 10ft long.

Looking down into the face of Peruvian, we observed a natural dry loose slide that released from the ridge. We observed an increase in wind speed throughout the morning, and a shift in wind direction from west to southwest in the early morning moving to west to north west by the late morning."


More Avalanche Details
Southern Madison
Taylor Fork
Wet snow slides, natural and skier triggered
Incident details include images
Taylor Fork
WS-N-R2-D2-O
Elevation: 9,500
Aspect: NW
Coordinates: 45.0607, -111.2720
Caught: 0 ; Buried: 0

Multiple wet slides were reported in southern Madison and Tobacco Roots over the week 5/3-5/7.


More Avalanche Details
Cooke City
COOKE CITY
Many wet slides near Cooke
Incident details include images
COOKE CITY
WL-N
Coordinates: 45.0202, -109.9380
Caught: 0 ; Buried: 0

From email 5/2/21: "Small but plentiful wet snow avalanches in Cooke City today. Didn’t see any that were broke on a deeper scale."


More Avalanche Details

Photos- Bridgers

Displaying 1 - 40
  • From obs: 5/9/21: "Yesterday we went to check out the new snow in Beehive Basin... Looking down into the face of Peruvian, we observed a natural dry loose slide that released from the ridge... We observed an increase in wind speed throughout the morning, and a shift in wind direction from west to southwest in the early morning moving to west to north west by the late morning. The combination of variable and high winds with the amount of new snow available for transport created a noticeable increase in the hazard of wind slabs on all aspects we observed during the morning..." Photo: E. Schreier

  • From obs: 5/9/21: "Yesterday... While traversing... along the north ridge of 10602 [in Beehive], we triggered a small wind slab  that carried down into Peruvian, which then released another small wind slab on a northeast aspect of the face (photo). The crown height of this wind slab was measured at 60cm at it's deepest point, and approximately 30ft wide by 10ft long. Looking down into the face of Peruvian, we observed a natural dry loose slide that released from the ridge. We observed an increase in wind speed throughout the morning, and a shift in wind direction from west to southwest in the early morning moving to west to north west by the late morning. The combination of variable and high winds with the amount of new snow available for transport created a noticeable increase in the hazard of wind slabs on all aspects we observed during the morning..." Photo: E. Schreier

  • Small wet loose slide that a skier triggered, running over an older crown from prior days. East aspect, 10,000'. From 5/7/21. Photo: D. Britt

  • Photo of a large natural wet avalanche in Taylor Fork, NNW aspect around 9,000' elevation near Koch Peak, on 5/3/21. Photo: D. Britt

  • From email 5/2/21: "Small but plentiful wet snow avalanches in Cooke City today. Didn’t see any that were broke on a deeper scale." Photo: K. Goodyear

  • From obs: "I traversed the Bridger range yesterday (4/28/21). The alpine start was good and solid but I saw lots of recent avalanches that looked super wet, some that had broken a couple feet deep. Conditions were pretty stable until about 1300 when that most recent snow layer started to really want to slide on the crust. Once I was in the meadows between Baldy and the M, at about 1400, I started hearing/feeling really wet "whumps". Photo: J. Harrison

  • From obs: "I traversed the Bridger range yesterday (4/28/21). The alpine start was good and solid but I saw lots of recent avalanches that looked super wet, some that had broken a couple feet deep. Conditions were pretty stable until about 1300 when that most recent snow layer started to really want to slide on the crust. Once I was in the meadows between Baldy and the M, at about 1400, I started hearing/feeling really wet "whumps". Photo: J. Harrison

  • From obs 4/28/21: "Observed numerous natural wet loose slides probably occurring over the past 48 hours on NW-W-S aspects mid-elevation. Point releases from rock bands and couloirs shedding. Photo for example, which shows W facing bowl with slides visible from US-89 in Paradise Valley. These are between 8500’ and 9500’ on an unnamed peak just northeast of Dexter Point." Photo: T. Benson

  • Natural loose avalanches of new snow ran on Monday 4/26/21 after 10-12" of heavy snow. Photo: A. Crawford

  • From obs (4/18/21): "...class split and dug three pits, one on NE, one on N, and one on NW at 7623'. HS averaged around 70 - 100 cms... The NE and NW facing pits showed rounding depth hoar and no sudden CT results. None of the ECTs fractured or propagated. The N facing slope still had preserved advanced depth hoar 3 mm in size (see image)..." Photo: J. Quinn

  • Near Flathead Pass on 4/15.

    From email: "We saw very isolated wind slabs near the top of the ridge but, with temperatures remaining below freezing, observed little activity in the most recent snow."
     

  • From obs 4/9/21: "...we saw widespread natural wind slabs on N-NE eastern slopes in the Northern Absarokas (photo). Winds increased throughout the morning, and evidence of wind transport became more apparent at higher elevations. We found that on aspects unaffected by wind loading, the new snow layer was not cohesive and only saw minor sluffing." Photo: E. Schreier

  •  

    A small avalanche hitting the North Bowl Road.

    Bridger Bowl is closed for the season and the ski patrol is on summer vacation. This means no one is mitigating avalanche hazards or closing terrain as conditions change, so skiers and riders have to make avalanche-related decisions for themselves and be prepared for partner rescue. It also means that familiar routes such as North Bowl Road may become unsafe. Photo: GNFAC

  • Skiers had a collapse which made this crack on a south facing slope with a shallower, wet snowpack around 9,000' near Cooke City. Photo: J. Redfield

  • This wet slab was reported on 4/4/21 around 8,200' elevation in the Main Boulder drainage south of Big Timber, outside of our advisory area. It happened that day or very recently during extended above freezing temperatures. Photo: G. Smith

  • Skiers watched this natural wet loose slide happen on the afternoon of 4/3/21. SSE aspect, 9,000' elevation. Photo: S. Lebel

  • Wet loose avalanches observed 4/3/21. Ran naturally between 3/31/21 and 4/2/21. SE aspect, 8,500-9,200' elevation. Photo: GNFAC

  • This was a natural wind-slab avalanche releasing below the upper cliffs on Saddle Peak on March 28th. Photo: Anonymous

  • Extreme winds on 3/28/21 transported snow that fell over the past week into fresh wind slabs. Photo: BSSP

  • From obs: "Deep slab avalanche in Blackmore Basin that appeared to break on the depth hoar near the bottom of the snowpack. It was on a wind loaded NE facing slope at approx. 9,500 and looked to break on a slope in the 35-40 degree range. The crown was about 8'-10' deep and 200' wide. It broke to the ground and ripped out several small trees." Photo: JR Mooney

  • Ian and Dave stop to do a quick stability test as they hunt for a layer of weak snow 1-2 feet under the surface. Photo: GNFAC

  • From obs: "On our way up the summer trail route to Hyalite Peak our party of three remotely triggered a small avalanche from the skin track at around 9,600ft on a east facing aspect. The storm slab went about 4 inches deep and 150-200ft across a small roll over feature. We were about 150ft away when we triggered the slide." Photo: C. Kussmaul

  • Deep slab avalanche on Arden Peak at the back of Maid of the Mist basin in Hyalite. Probably broke between Feb 22 and Feb 28, 2021 Photo: GNFAC

  • From obs 3/6/21: "Two large natural avalanches in Maid of the Mist Basin. One of them ran on the east face of Arden Peak (Peak 10,201) which propagated across the entire face. Could have been triggered by a cornice fall then stepped down to deeper layers. The second was on the NE face of the peak Fat Maid and Skinny Maid come from. Also propagated across the entire slope. Crown height between 6'-8' in most places." Timing of these slides is unknown. Probably in the last week, but maybe older. Photo: S. Enloe

  • We saw these recent wet loose avalanches on 3/6/21. SW aspect, 9,100'. They likely ran during above freezing temperatures between 3/3 and 3/5. Photo: GNFAC

  • From obs: "Small D1 avalanche on south-eastern aspect around 7800ft. Looks like solar released on older layer a day or two ago."

    Photo: M. Mailly

  • From obs: "While touring above the canyon this morning, I noticed a very recent wet slide (would guess this incident occurred yesterday afternoon, March 4th). This was a skier triggered slide on a E aspect at an elevation of 7200. This slide was roughly 50 feet wide and ran about 50 feet, I estimated this crown to be 2-3 feet deep, slid all the way to the ground. This occurred below a steep roller."

    Photo: T. Saulnier

  • "On the drive back we saw a large crown on the NW face of Big Horn peak..." (likely broke Sat or Sun, 2/27-28). Photo:  S. Jonas

  • Wet loose avalanches released in the warm sunshine on Tuesday, March 2nd. We expect many more in the coming days. Photo: S. Jonas

  • Sled Skiing in Third Yellow mule... after an air onto the slope the impact from landing resulted in a fracture and failure to / near the ground... in addition, a remote trigger occurred on adjacent slope... 200-300 ft to the skiers right. No body was caught in either slide. Skier that initiated failure was moving at high speed and was beyond slide path before majority of snow movement began. Photo: W. Miller

  • Sled Skiing in Third Yellow mule... after an air onto the slope the impact from landing resulted in a fracture and failure to / near the ground... in addition, a remote trigger occurred on adjacent slope... 200-300 ft to the skiers right. No body was caught in either slide. Skier that initiated failure was moving at high speed and was beyond slide path before majority of snow movement began. Photo: W. Miller

  • Sled Skiing in Third Yellow mule... after an air onto the slope the impact from landing resulted in a fracture and failure to / near the ground... in addition, a remote trigger occurred on adjacent slope... 200-300 ft to the skiers right. No body was caught in either slide. Photo: W. Miller

  • This avalanche was triggered on Sunday, 2/28, when a skier released another slide 2-300 feet away. It broke at the same time. No one was caught. This was in the Third Yellow Mule on Buck Ridge.  Photo: W. Miller

  • There was 6' of snow off the ridge in the Bridger Range on an east facing slope. The top 2 feet were recent wind drifting that broke clean in our stability test which indicated unstable conditions (ECTP18). We expect similar conditions and instability with wind-loaded slops throughout our forecast area. Photo: GNFAC

  • In the last 24 hours (2/28) 12" of low density powder and 40-50 mph west wind made it easy to trigger wind-drifted snow. Alex kicked these drifts which cracked and moved. We expect similar conditions and instability with wind-loaded slops throughout our forecast area. Photo: GNFAC

  • The Friends of the Avalanche Center, in partnership with the City of Bozeman, put in a Beacon Park at Beall Park. It is located on the north side of the Beall building between N. Bozeman Ave. and the ice rink. Stop by with your avalanche transceiver and do a few practice rescue drills. Your partner will thank you. Photo: S. Regan

  • Natural avalanche south of Saddle Peak. 2/18/2021

    Photo: M. Stem

  • Photo: B. Finch

  • Observed on drive back from Bridger 2/18/21. Photo: J. Mundt

  • From email: "I just watched this slide from my house on Jackson Creek. It’s south of Saddle Peak." Photo: A. Coolidge

Videos- Bridgers

WebCams


Bridger Base Area

Ridge, Looking North

Deer Park

Weather Forecast Bridgers

Extended Forecast for

10 Miles NNE Bozeman MT

  • Today

    Today: A 50 percent chance of snow after noon.  Mostly sunny, with a high near 46. Calm wind becoming west around 6 mph in the afternoon.  Little or no snow accumulation expected.

    Mostly Sunny
    then Chance
    Snow

    High: 46 °F

  • Tonight

    Tonight: A chance of snow showers before 2am, then a slight chance of snow after 3am. Some thunder is also possible.  Partly cloudy, with a low around 30. West northwest wind around 6 mph.  Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Chance Snow
    Showers

    Low: 30 °F

  • Wednesday

    Wednesday: A 20 percent chance of rain after noon.  Mostly sunny, with a high near 50. West wind 6 to 8 mph.

    Mostly Sunny
    then Slight
    Chance Rain

    High: 50 °F

  • Wednesday
    Night

    Wednesday Night: A slight chance of rain and snow between midnight and 3am, then a slight chance of rain after 3am.  Mostly cloudy, with a low around 35. West northwest wind around 7 mph becoming east southeast in the evening.  Chance of precipitation is 20%.

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

    Low: 35 °F

  • Thursday

    Thursday: A 30 percent chance of rain after noon.  Mostly sunny, with a high near 55. South southwest wind 6 to 9 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    Mostly Sunny
    then Chance
    Rain

    High: 55 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of rain before midnight.  Mostly cloudy, with a low around 38. West northwest wind around 7 mph becoming east southeast after midnight.

    Slight Chance
    Rain then
    Mostly Cloudy

    Low: 38 °F

  • Friday

    Friday: A slight chance of rain, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 53. South wind around 6 mph becoming light and variable  in the afternoon.  Chance of precipitation is 50%.

    Slight Chance
    Rain then
    Chance
    Showers

    High: 53 °F

  • Friday
    Night

    Friday Night: A chance of rain, mainly before midnight.  Mostly cloudy, with a low around 36. North northeast wind 6 to 8 mph becoming east southeast after midnight.

    Chance Rain

    Low: 36 °F

  • Saturday

    Saturday: A chance of rain, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 55.

    Showers
    Likely

    High: 55 °F

The Last Word

Thank you to everyone that sent in observations, read the forecasts, took an avalanche class or donated money, time or gear. Our success is directly related to community support and the Forest Service. Have a safe spring and summer!