Regional Conditions for Bridgers

as of 5:00 am
Today0″ | 10-20 W
Mar 2 0″ | 15-40 W
Mar 1 0″ | 15-40 W
8100′     3/03 at 13:00
42 ℉
0.1″New
8500′   3/3 at 13:00
32 ℉
W - 8 mph
Gusts 18mph
Bottom Line: The biggest avalanche concern remains weak, sugary snow at the ground. It is still there, still weak and still capable of avalanching. Even without recent avalanches or other signs of instability be aware that facets at the ground have a long history of fooling us. Slopes avalanche when we do not expect it. That's why we carry rescue gear, travel one at a time and watch one another; sometimes our assessment is wrong and we need a safety net. Additionally, above freezing temperatures will dampen the snow surface. On slopes getting the full power of the sun I expect wet snow to loosen and slide on steep slopes.
Primary Problem: Persistent Weak Layer

Past 5 Days

Sat Feb 27

Moderate
Sun Feb 28

Considerable
Mon Mar 1

Considerable
Tue Mar 2

Moderate
Today

Moderate

Avalanche Activity- Bridgers

Northern Madison
Buck Ridge
Third Yellow Mule / Skier triggered slide + sympathetic
Incident details include images
Incident details contain video
Buck Ridge
SS-ASu-R2-D1.5-O
Aspect: NE
Coordinates: 45.1912, -111.4430
Caught: 0 ; Buried: 0

https://www.instagram.com/p/CL4xIk5n8PZ/

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. 2 pits where dug prior to riding terrain. One on adjacent slope, we went through to ECT 30 and continued to hammer on the column through 40 wacks of double fist, full force before failure occurred 30 cm above ground. Second pit was dug on slope where slide was initiated... same results, very hard to get failure to occur. Snowpack depth varied from 125 - 180 cm in the area... our pits were dug in depths of around 125 cm and 170 cm respectively.


More Avalanche Details
Bridger Range
BRIDGER RANGE
Skier triggered cornice N of Peters Point, adjacent to Bridger Bowl boundary
BRIDGER RANGE
SS-ACu
Coordinates: 45.8512, -110.9480
Caught: 0 ; Buried: 0

From obs: "Observed a small avalanche while teaching a rec. 1 today for MSU. The light was too flat to see a crown. Based on the light wind, ski patrol obs. and our moving obs., I hypothesize that it was a dry, loose avalanche. L-N-R1-D1.5-I."

Patrol reported: "A midday report from [a skier] that he had released the Duane's Cornice (out of bounds to the north) as he travelled to the ramp had us looking for any tracks below, none were observed. It looked to step down and pull some older layers as it went through the lower pinch."


More Avalanche Details
Bridger Range
Saddle Peak
Natural New snow slabs, cornice falls, dry loose in south Bridgers
Saddle Peak
SS-N-R1-D2-S
Elevation: 8,800
Aspect: E
Coordinates: 45.7943, -110.9360
Caught: 0 ; Buried: 0

2/18/21 at 11:45 GNFAC forecaster observed with binoculars natural avalanche activity within new snow along ridgeline south of Bridger ski area to Bridger peak. There were two 50-100 foot wide slabs that broke in the recent storm snow, in the Pinnacles and on Bridger Peak. Wind was blowing strong from the west and there was a lot of snow transport. Cornices were very large and some had broke and gouged through the recent new snow and ran long distances a few triggered broader loose snow avalanches. 


More Avalanche Details

Photos- Bridgers

Displaying 1 - 40
  • 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

  • I triggered a small avalanche along the trail up Olson Creek in the Bangtails. It cracked about 75 feet wide, but only a small amount actually slid. Photo: C. Norem

  • From Obs: "Observed a group of recent natural avalanches on a NW facing slope into Truman Gulch at about 8600'" Photo: JR Mooney 

  • On 2/13/21 skiers in the backcountry north of Bridger saw this avalanche occur in wind loaded terrain. They reported a ski track in terrain above, but not sure if it was there already. Photo: C. Gostout

  • Natural avalanche crowns on Bridger Peak that ran during the storm from 2/4-2/8. Debris at the bottom the paths in the right of photo. Crowns were seen across all of Bridger Peak, some on Baldy Peak, many through The Pinnacles, Argentina Bowl and Saddle. Photo: GNFAC

  • This natural avalanche crown was seen on 2/9/21 and ran during the storm from 2/4-2/8. Photo: GNFAC

  • Ski patrol reported this large natural slide on 2/7/21. Photo taken 2/10/21: BBSP

  • From email: "Skied the ramp outside of Bridger Bowl today, saw these small NE facing crowns at 8350'. We also experienced localized cracking while skinning at the density change interface of the new and "old" snow (8-12" at this elevation by 4pm). No other observed avalanches, no other cracking and no collapsing. New snow was sluffing easily on steep terrain." Photo: D. Sandberg

  • Photo: A. Schoening

  • On 2/7/21 skiers in Beehive reported: "Numerous large collapses, ECTP in several pits on mid-pack facets, and triggered a test slope remotely from flat terrain. It broke in the old snow, but towards to top, maybe 10cm below the interface with the last week’s snow. Propagated over 50m, crown depth 60-100 cm. Would be solid size 2 if the slope wasn’t 20m tall." Photo: Sam H.

  • This 4' deep snowpit shows the new snow over the last 4 days: everything above the blue card, over 2' of snow measuring 2" of SWE. Avalanches are breaking on the very weak, sugary snow (facets and depth hoar) 1-1.5 feet above the ground. The smooth surface in the bottom left of the photo is the failure plane. Photo: GNFAC

  • Signs of a small natural avalanche on lower wolverine bowl. Photo: C. Pruden

  • Skiers in in northern Bridgers remote triggered this small slab on 2/6/21. Photo: @ckussmaul

  • From BBSP on 2/6/21" "Clear vis gave us a good view of  natural avalanches on Saddle peak , the Football field and Behind D-rtand the nose on Truman Gulch that ran yesterday morning (2/5/21)"

  • Natural avalanche observed near Fairy Lake on 2/6/21. 150ft wide and varying from 2.5-5ft deep. Broke in the new snow but also stepped down to near the ground.

    Photo: C. Davidson

  • A skier north of Bridger Bowl ski area noted a layer of feathery surface hoar growing in the upper 500 vertical feet to the Ridge. B. Van Wert

  • These 2 natural avalanches released in Frazier Basin in the northern Bridger Range about a week ago. They are reminders that the snowpack has a weak layer we should not forget about. Photo: A. Peterson

  • Winds actively drifting the new snow into unstable slabs. Photo: GNFAC

  • Multiple (at least 3) Natural avalanches in Truman Gulch on the west side of the Bridger Range ran on Wednesday 1/13/21. Photo: P. Hinz

  • Routine avalanche mitigation within the boundaries of Bridger Bowl sympathetically caused half of the Football Field on Saddle Peak to avalanche immediately south of the boundary. "Debris ran over the cliffs pulling out spindrift cones that were up to 5 ft deep." Photo: BBSP

    *Note: BBSP does not perform any avalanche mitigation outside of the ski area boundaries

  • The recent wind has stripped the snowpack bare in spots and created large drifts in others at the Throne. Photo: GNFAC

  • The thin snowpack at the Throne is harboring the largest depth hoar I have seen this season. Photo: GNFAC

  • From obs: "On our way out to fairy lake we stopped in the open meadow just before the campground and noticed a sizeable natural avalanche on a northfacing slope that appeared to have broken on the layer of sugary facets on the ground. From our perspective it appeared to have happened a few days ago likely after the loading event midweek." Photo: E. Marcoux

  • Skiers triggered this avalanche on Flanders Mountain on 1/9/21. It was triggered out of the photo to the right on a seperate slope around the corner. It propagated over 1000' wide, and looks to be 6' deep at deepest. Photo: A. Blackmer

  • From obs: "the whumpf I had heard previously remotely triggered a series of 7-8 large cracks that ranged from 30-100 feet wide. ... As I carefully descended the meadow, I saw many more cracks throughout the slope from the same remote trigger event. Additionally, I triggered two more significant whumpfs with shooting cracks 10-40 feet wide. We determined our remote trigger was at least 300 feet away from where the snow collapsed and cracked"

    Photo: L. Ippolito

  • Large natural avalanche south of Hardscrabble Peak near Fairy Lake. Likely broke during snowfall/wind on Thursday, Jan 7th.

  •  A skier had widespread collapsing, "whumphing" and cracking of the snowpack in Truman Gulch west of Bridger Bowl. Photo: P. Hinz

  • "I was skiing down the apron at Bridger and noticed this slide on Bradley's that appeared to be skier triggered." Photo: B. O'Donoghue

WebCams


Bridger Base Area

Ridge, Looking North

Deer Park

Weather Forecast Bridgers

Extended Forecast for

10 Miles NNE Bozeman MT

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 41. Southwest wind around 7 mph.

    Sunny

    High: 41 °F

  • Tonight

    Tonight: Mostly clear, with a low around 23. South wind around 7 mph.

    Mostly Clear

    Low: 23 °F

  • Thursday

    Thursday: Sunny, with a high near 42. West wind 5 to 7 mph.

    Sunny

    High: 42 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 25. West wind 7 to 10 mph becoming south after midnight.

    Mostly Clear

    Low: 25 °F

  • Friday

    Friday: Mostly sunny, with a high near 48. South southwest wind 8 to 10 mph.

    Mostly Sunny

    High: 48 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 29. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    Partly Cloudy

    Low: 29 °F

  • Saturday

    Saturday: A slight chance of rain between 11am and 2pm, then a slight chance of snow after 2pm.  Partly sunny, with a high near 48. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

    High: 48 °F

  • Saturday
    Night

    Saturday Night: A slight chance of snow before 11pm.  Mostly cloudy, with a low around 28. West southwest wind around 11 mph, with gusts as high as 22 mph.

    Slight Chance
    Snow then
    Mostly Cloudy

    Low: 28 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 39.

    Mostly Sunny

    High: 39 °F

The Last Word

The video recording of Dave’s recent talk on “Rethinking Avalanche Terrain from a Strategic Perspective” is now available. It’s worth your time to watch it. There is a little something for everyone. 


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