Regional Conditions for Northern Madison

as of 5:00 am
Today0" | 5-15 NE
Apr 19 0" | 5-15 SE
Apr 18 2" | 5-15 SW
9400′     4/20 at 8:00
28 ℉
N - 14 mph, Gusts 23
0.5 " New
8880′   04/20 at 6:00
78″ Depth
Bottom Line:

Past 5 Days

Fri Apr 13

Sat Apr 14

Sun Apr 15

Mon Apr 16



Photos- Northern Madison

  • Cornices are a significant hazard this time of year. As temps warm above freezing, these overhanging masses of snow will become increasingly unstable. They can break farther back than you might expect and trigger large avalanches on the slopes below. They can fail naturally or with human triggers. 

  • This slide was triggered by the first skier of day off Saddle Peak. The skier was caught and carried 1,500 vertical feet. He was buried with his hand sticking out of snow. Unfortunately, he did not have a partner and was buried for over an hour. He did not survive. Photo: R. Gregoire   

  • This slide on Saddle Peak resulted in a fatality. It was triggered by a solo skier who was caught and buried. The slope was heavily wind loaded and the slide failed on a thin ice crust. Photo: R. Gregoire

  • Wet loose avalanches will be a growing concern as spring progresses. Sunshine, above freezing temps and rain can all produce dangerous wet snow avalanches. Watch for signs of instability such as roller balls, small point releases and wet snow above your boot top. Avoid being on or underneath steep slopes if signs on instability are observed. Photo: BBSP 

  • The crown ranged from 1-3' deep and was 75-100' wide. The avalanche was new, windblown snow on top of a thin ice crust. Aspect is east, slope angle is 37 degrees, and elevation is 9019'. Photo: GNFAC

  • Looking down the path with the burial location marked. Photo GNFAC

  • Looking down the path from the crown. The "X" marks the burial location. Photo: GNFAC

  • Looking uphill about half-way down the path. The crown can be seen at the skyline. Photo: GNFAC

  • The distance from the burial location to the crown line (seen at the top of path at the skyline) was 1500' vertical. The skier was buried with his hand sticking out of the snow. His head was about 1.5' from the surface.  Three rescuers got to him 75 minutes after he was caught. Photo: GNFAC

  • Large cornices loom over the slope where a skier triggered a fatal slide on Saturday (4/14) on Saddle Peak in the Bridger Range. Photo: P. Maleski

  • Both the crown and the victim's location are marked on the photo. The skier was carried 1500 vertical feet downslope and buried near the toe of the debris. Rescuers reached him 75 minutes after the slide occurred, but the avalanche was fatal. Photo: GNFAC

  • The avalanche was triggered by a solo skier, the first tracks of the day. The crown is marked, and the slide carried him down the path where he was fatally buried. Photo: GNFAC

  • A skier triggered the slide a few hundred feet from the top on a 37 degree rollover that was wind-loaded with the previous days 30" of new snow. The crown was 1-3 feet deep and 75-100 feet wide. Photo: GNFAC

  • The Bridger Bowl weather station is buried by the new snow. Photo: BBSP

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  • Snow water equivalent of the snowpack at primary SNOTEL sites within the GNFAC advisroy area from October 1, 2017 through April 8, 2018.

  • These cornices at the head of Sunlight Basin in Taylor Fork are bigger than big. The snow lip is a solid 30 feet away from the true ridge crest and could easily fool a rider or skier into getting too close to the edge. We are finding similar cornices in all our ranges. As the temperatures warm these overhangs will start to lose strength. Photo: GNFAC

  • A dog remotely triggered this wind slab in the northern Madison Range. Fresh winds slabs were forming from moderate to strong west-southwest winds. Wind slabs are the primary problem across the advisory area. Photo: Z. Peterson 

  • Photo: N. Truax

  • Photo: N. Truax

  • On the ski up Maid of the Mist in Hyalite we were able to get this small wind fetch to avalanche. It was a nice test slope to see if wind-loaded slopes would move. This was a "positive" result and we stuck to terrain without wind-loading. Photo: GNFAC

  • A skier found 2-6" thick wind slabs on the east face of Mt. Blackmore up Hyalite, and a cornice break (photo) that ran over 600 vertical feet down the north face. Photo: S. Casper

  • Debris from a cornice fall that pulled out a small wind slab on Mt. Bole in Hyalite (3/27). Photo: GNFAC

  • Wind-loading Monday afternoon continued into the evening and formed wind slabs at many elevations. This photo is on the Bridger ridge, south of the ski area. Photo: B. Johnsen

  • South of Cooke City, a recent slab avalanche up Republic Creek from Monday (3/26).  A wind loaded, north facing slope around 9,700'. Photo: B. Fredlund

  • Reactive snow on steep edge of tree well. Sluffing or cracking on small rolls and micro-terrain features is a sign that loose slides or soft slabs are possible and may run far on larger, steep terrain. Photo: H. Coppolillo

  • Big Sky ski patrol triggered this slide with explosives on Sunday (3/25). It is in a heavily wind loaded pocket. Heavy snow and strong wind formed fresh slabs on Saturday. Many have gained strength, but are possible to trigger for a day or two. Photo: BSSP

  • Big Sky ski patrol triggered this slide with explosives on Sunday (3/25). Heavy snow and strong wind formed fresh slabs on Saturday. Many have gained strength, but are possible to trigger for a day or two. Photo: BSSP

  • Wind loading after Saturday's snowfall (3/24) created avalanches on Saddle Peak that ran over the cliffs. Photo: GNFAC

  • Skiers in Beehive Basin noted touchy conditions and poor bonding between the new snowfall and old snow interface. They triggered slides while moving along a ridge line and also noted natural avalanche activity. Photo: R. Makohin

  • Skiers in Beehive Basin noted touchy conditions and poor bonding between the new snowfall and old snow interface. Crusts formed last week during several days of high pressure, particularly on solar aspects. They also noted natural avalanche activity. Photo: R. Makohin

  • There is 7' of snow on the ground in Bacon Rind (HS 240 cm) and it is stable today. The main concern is the new snow above the ice crust that formed 10 days ago (seen as the stripe behind the shovel) and in two snowpits our stability tests did not propagate. Melting, rain and/or more snow with wind would change the stability, but for now it's good. Photo: GNFAC

  • The snowmobiler walked to the edge of the ridge when the cornice broke carrying him over a cliff. Photo: Fremont Co. SAR

  • A skier on Yellow Mountain near Big Sky observed this old wet loose avalanche on a south facing slope. This slide likely occurred last week during the extended period of warm weather. Above freezing temps, abundant sunshine and rain on snow can all produce sizable wet loose avalanches. This will become a more widespread problem as spring progresses. Photo: T. Allen

  • Yesterday, (20 March) a snowmobiler was injured when a cornice broke and carried him down a slope and over a small cliff in the Centennial Range of Idaho between Sawtelle Peak and Mt. Jefferson. Fremont County Search and Rescue reported the rider was injured and ambulatory, and evacuated by air ambulance to a hospital.

  • Slab avalanche that broke in the 8-10" of storm snow that fell Thursday (3/15). It is out of bounds just north of Bridger Bowl and was likely triggered sympathetically during avalanche control on Friday. Photo: GNFAC

  • These avalanches appear to be natural and broke in the 8-10" of snow that fell Thursday (3/15). Photo: GNFAC

  • Dry loose avalanches and small storm slabs were observed in Beehive Basin. With more snow in the forecast, similar avalanches will be likely. Photo: GNFAC

Videos- Northern Madison

Weather Forecast Northern Madison

Extended Forecast for

5 Miles NNW Big Sky MT

  • Today

    Today: Sunny, with a high near 40. North wind around 10 mph.


    High: 40 °F

  • Tonight

    Tonight: Mostly clear, with a low around 25. North wind 5 to 9 mph becoming light and variable.

    Mostly Clear

    Low: 25 °F

  • Saturday

    Saturday: Sunny, with a high near 45. Southwest wind 8 to 18 mph, with gusts as high as 29 mph.


    High: 45 °F

  • Saturday

    Saturday Night: Partly cloudy, with a low around 23. West wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

    Partly Cloudy

    Low: 23 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 43. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.

    Mostly Sunny

    High: 43 °F

  • Sunday

    Sunday Night: Snow likely, mainly after midnight.  Mostly cloudy, with a low around 26. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Snow Likely

    Low: 26 °F

  • Monday

    Monday: Snow. The snow could be heavy at times.  High near 32. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Heavy Snow

    High: 32 °F

  • Monday

    Monday Night: A slight chance of snow before midnight.  Mostly cloudy, with a low around 17.

    Slight Chance
    Snow then
    Partly Cloudy

    Low: 17 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39.

    Mostly Sunny

    High: 39 °F

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