Regional Conditions for Southern Madison

as of 5:00 am
Apr 302″ | N/A
Apr 29 0″ | N/A
Apr 28 1″ | N/A
9460′     04/02 at 13:00
40.6℉
E - 2mph
Gusts 14mph
9000′   08/24 at 5:00
45℉
0″ Depth
Bottom Line: Avalanches will be mostly confined to new snow that falls. Shallow wet slides are possible if rain or warm temperatures melt the snow surface. Anticipate new snow stability to decrease with wind, sun or above freezing temperatures. Be aware of deeper wet slides if the snowpack doesn’t freeze overnight, or if there is heavy rain. Now is just as important as ever to be diligent with snowpack assessment and choose terrain carefully. See our forecast page for general spring snowpack and travel advice.

Past 5 Days

Fri Apr 19

None
Mon Apr 22

None
Fri Apr 26

None
Mon Apr 29

None
Thu May 2

None

Avalanche Activity- Southern Madison

Photos- Southern Madison

Displaying 1 - 40
  • Natural wet slabs were widespread on Fan Mtn. near Big Sky during the week of 5/13-5/16. Photo: E. Mullen

  • Natural wet slabs were widespread on Fan Mtn. near Big Sky during the week of 5/13-5/16. Photo: E. Mullen

  • Natural wet slabs were widespread on Fan Mtn. near Big Sky during the week of 5/13-5/16. Photo: E. Mullen

  • Natural wet slabs were widespread on Fan Mtn. near Big Sky during the week of 5/13-5/16. Photo taken 5/16: B. Rycenga

  • This natural wet slab slid early this week, Monday (5/13) or early Tuesday (5/14), near Beehive Peak. This photo was taken 0745 Tuesday morning. Photo: @cfirer

  • This natural wet slab slid early this week, Monday (5/13) or early Tuesday (5/14). Photo: @wallace_casper

  • Debris from a wet slab that released naturally Tuesday evening on saddle Peak. Debris ran very far into the runout compared to similar sized dry slabs that often occur on this path. "South side of 1/4 Saddle slid sometime last night. Looks like cornice drop then step down to near ground. Hi yesterday at Alpine was 62." -R. Elliott/BBSP

  • This wet slab released naturally Tuesday evening on saddle Peak. "South side of 1/4 Saddle slid sometime last night. Looks like cornice drop then step down to near ground. Hi yesterday at Alpine was 62." -R. Elliott/BBSP

  • "South side of the Glide Plane released as a glide avalanche last evening (May 12th) sometime around 6 pm according to source. Bed surface was ground in starting zone of wet clay soil sparsely covered in long grass.  Debris chunks, some snowmobile sized, rode up on surface and slid approx. 200 vert.  Debris could have bumped a tower on the old Alpine lift if it still lived there. Last freeze was 6 am on the 10th of May.  The high temperature on the 12th was 59 degrees at 4 pm." Photo and observations: BBSP

  • "South side of the Glide Plane released as a glide avalanche last evening (May 12th) sometime around 6 pm according to source. Bed surface was ground in starting zone of wet clay soil sparsely covered in long grass.  Debris chunks, some snowmobile sized, rode up on surface and slid approx. 200 vert.  Debris could have bumped a tower on the old Alpine lift if it still lived there. Last freeze was 6 am on the 10th of May.  The high temperature on the 12th was 59 degrees at 4 pm." Photo and observartions: BBSP

  • Skiers found fresh wind slabs that were easily triggered on Saturday 4/27 near Beehive Basin in the northern Madison Range. Photo: E. Birkeland

  • Spring Sled Fest is May 18th! DJ, Free BBQ, Raffle. All proceeds go to the Friends of the Avalanche Center. More event details here: https://www.facebook.com/events/2290792671007553/ Thanks to Mark Christensen @markass406 and Nick Donovan @skidooin_it for organizing the event.

  • Skiers easily triggered loose snow avalanches of the 3-5” of new snow. This morning (4/27) on the Bridger Ridge. Photo: @smooneyski

  • Skiers easily triggered loose snow avalanches of the 3-5” of new snow. This morning (4/27) on the Bridger Ridge. Photo: @smooneyski

  • Debris from an older wet loose slide observed 4/20/19. Estimated to be a week old. Photo: G. Antonioli

  • Observed 4/20/19. Crown estimated 3-5' deep. Above freezing temperatures, sunshine and rain created a wet and weak snowpack. Photo: G. Antonioli

  • Observed 4/20/19. Crown estimated 3-5' deep. Above freezing temperatures, sunshine and rain created a wet and weak snowpack. Photo: G. Antonioli

  • From e-mail on 4/11/19: "We found reactive storm slabs and touchy windslabs near ridgelines. We kicked off a small windslab in 4th of July from the top of the couloir. Attached is a photo of the crown to give you a depth perspective. It was about 6 feet across and 3-4 inches deep."

  • Below 3-5" of new snow there is a supportable frozen crust on top of a wet snowpack on most slopes. Avalanches are mostly confined to the new snow on top of this crust (wet loose, dry loose, wind slabs). However, where the snowpack did not freeze below the new snow, or when this crust melts, deeper wet slides are possible. Photo: GNFAC

  • Snowmobile-triggered slide near Fairy Lake on Saturday (3/30). New snow was drifted into small wind slabs that may remain reactive in isolated areas.  Photo: P. Cronin

  • A snowbiker was partially buried in a slide on the west side of Sage Peak in the southern Madison Range. The slide occurred on a southwest facing slope at 8,700 ft. and failed on weak snow near the ground. The wet slab avalanche was triggered as the biker was side-hilling across the slope. He was caught, carried and buried to his chest, but fortunately escaped unharmed. Photo: D. Talbert 

  • Outside Cooke City up Zimmer Creek, a skier spotted this cornice fall which triggered a small pocket down low. Photo: F. Madsen

  • Many wet loose and wet slab avalanches were seen near Zimmer Creek (north of Cooke City) on south and east aspects. Temperatures were warm at 10,000 feet. Photo: F. Madsen

  • This photo near Lionhead, is indicative of the wet loose avalanches we are seeing on many low elevation, south facing slopes throughout our advisory area. Daytime temperatures near 50F will make avalanches like this more frequent and widespread in the coming days.

  • A snowmobiler saw this recent activity on Saturday 3/9/19 on Cedar Mountain near Big Sky.

  • This slide was triggered on a steep (40 deg) southeast facing slope at Round Lake outside Cooke City. It failed 8" deep on a layer of graupel and small facets. An adjacent hill slid at the same depth beforehand. This layer is not on most slopes, but as this slide shows it is on some. Doug was in the area and dug a pit in the crown soon after it was triggered. Photo: J. Fritz

  • This slide on the NE face of Blackmore was triggered by the second skier. It was 8-12" deep and 100' wide and likely failed on small faceted crystals underneath the new snow. No one was caught. Going one at a time was good travel behavior that can save our lives when things go wrong.

  • Two avalanche on the south face of Cone Mountain, southern Madison Range. Observed on March 4th, 2019, likely occurred several days earlier. Photo: B. Elkin.

  • An avalanche on an east/northeast aspect of White Peak in Upper Tepee Basin, southern Madison Range. Observed on March 4th, 2019, likely occurred several days earlier. Photo: B. Elkin.

  • Riders saw this avalanche (center of photo) on Saturday (3/2) just east of Sage Peak. Photo: P. Honsinger

  • A snowmobiler sent in this photo of multiple natural avalanches near Woodward Mtn. He also reported large avalanches near Pika Point and Skyline Ridge that failed at the ground. Photo: P. Honsinger

  • A snowmobiler triggered this slide on the afternoon of 3/2/19 behind Sage Peak in the southern Madison Range. Photo: J. Hillier

  • A snowmobiler triggered this slide on the afternoon of 3/2/19 behind Sage Peak in the southern Madison Range. Photo: J. Hillier

  • We received this report of an unusually large natural avalanche in the East Mill Creek drainage: " First time in 17 years we have had an avalanche come into our road. Natural, maybe from a point release that fractured new snow about 20 inches at the crown, propagated 50 yards, ran about 300 feet without stepping down, leaving about 5 foot deep debris. A new 2 inches is covering the debris that likely went during this afternoons warming."  Photo and comments: L. Watson

  • This avalanche failed on the ground up on Buck Ridge near the First Yellowmule. It was human-triggered, but nobody was caught or buried. Photo: N. James

  • This avalanche failed on the ground up on Buck Ridge near the First Yellowmule. It was human-triggered, but nobody was caught or buried. Photo: N. James

  •  

    Snowmobile - triggered avalanche in the McAtee Basin area near Buck Ridge. The avalanche was triggered unintentionally from the runout zone and propagated all the way up to the ridge above the riders. Luckily, nobody was caught or buried. Photo: J. Stoner

Videos- Southern Madison

WebCams


Raynolds Pass, Looking N

Weather Forecast Southern Madison

Extended Forecast for

20 Miles S Big Sky MT

  • Today

    Today: Partly sunny, with a high near 65. South southwest wind 8 to 16 mph, with gusts as high as 23 mph.

    Partly Sunny

    High: 65 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 44. West wind 6 to 16 mph, with gusts as high as 23 mph.

    Partly Cloudy

    Low: 44 °F

  • Sunday

    Sunday: Sunny, with a high near 60. Southwest wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.

    Sunny

    High: 60 °F

  • Sunday
    Night

    Sunday Night: Clear, with a low around 38. West northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph.

    Clear

    Low: 38 °F

  • Monday

    Monday: Sunny, with a high near 55. West wind 8 to 14 mph, with gusts as high as 20 mph.

    Sunny

    High: 55 °F

  • Monday
    Night

    Monday Night: Clear, with a low around 37.

    Clear

    Low: 37 °F

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    Sunny

    High: 60 °F

  • Tuesday
    Night

    Tuesday Night: Clear, with a low around 40.

    Clear

    Low: 40 °F

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    Sunny

    High: 64 °F

The Last Word

Have a safe and enjoyable spring and summer. See you when the flakes start to fly next Fall! -Doug, Eric, Alex and Ian