Trip Planning for Northern Gallatin

as of 5:00 am
May 18″ | NA
Apr 30 8″ | NA
Apr 29 3″ | NA
9982′     03/30 at 12:00
23.8℉
W - 1mph
Gusts 4 mph
8100′     07/15 at 22:00
51℉
Depth
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

Fri Apr 19

None
Mon Apr 22

None
Fri Apr 26

None
Mon Apr 29

None
Thu May 2

None

Relevant Photos

Displaying 1 - 40
  • From obs 5/23/24: "shooting cracks in the top 4 to 5 inches of new snow in middle basin" Photo: N. Greiner

  • From obs 5/23/24: "Toured to the top of PK during today’s storm. Snow was very wet and heavy. We saw no other slides or signs of instability on the way up. Coming down skiers right of flippers, all 3 of us caused small slides and cracking within the new snow. I triggered the largest slide, which was 6-8” deep and 12’ wide." Photo: T. Jordan

  • From obs 5/18/24: "Wet snow avalanche at around 9300’ on a northwest aspect in Hyalite basin. Group opinions on crown height ranged from 1-5 feet - hard to tell from a distance." Photo: A. Kautzer

  • From obs 5/18/24: "Wet snow avalanche at around 9300’ on a northwest aspect in Hyalite basin. Group opinions on crown height ranged from 1-5 feet - hard to tell from a distance." Photo: A. Kautzer

  • On 5/4/24 Skiers triggered large wet loose slides on the Fin near Cooke City

  • From IG message 4/17/24: "Remote trigger up little bear today. Went to the groundish."

  • From IG message 4/17/24: "Remote trigger up little bear today. Went to the groundish."

  • From IG message 4/17/24: "Remote trigger up little bear today. Went to the groundish."

  • From IG message 4/17/24: "Remote trigger up little bear today. Went to the groundish."

  • From IG message: “Rode the banana today.. lots of fast moving sluff. Had a mid elevation pocket pop. New snow seemed to have bonded well, the spot that did pop had formed into 12” slab below rock face.”

  • We toured up to Flanders Mtn and saw a big, deep 2-6' deep avalanche that broke 300-500' wide in weak snow at the bottom of the snowpack. It broke across two separate start zones and included a lower angle ridge (still around 30 degrees) in between that slid. E-NE aspect at 9,800'. HS-N-R3-D3-O.  Photo: GNFAC

     

  • We toured up to Flanders Mtn and saw a big, deep 2-6' deep avalanche that broke 300-500' wide in weak snow at the bottom of the snowpack. It broke across two separate start zones and included a lower angle ridge (still around 30 degrees) in between that slid. E-NE aspect at 9,800'. HS-N-R3-D3-O.  Photo: GNFAC

     

  • We toured up to Flanders Mtn and saw a big, deep 2-6' deep avalanche that broke 300-500' wide in weak snow at the bottom of the snowpack. It broke across two separate start zones and included a lower angle ridge (still around 30 degrees) in between that slid. E-NE aspect at 9,800'. HS-N-R3-D3-O.  Photo: GNFAC

     

  • We toured up to Flanders Mtn and saw a big, deep 2-6' deep avalanche that broke 300-500' wide in weak snow at the bottom of the snowpack. It broke across two separate start zones and included a lower angle ridge (still around 30 degrees) in between that slid. E-NE aspect at 9,800'. HS-N-R3-D3-O.  Photo: GNFAC

     

  • We toured up to Flanders Mtn and saw a big, deep 2-6' deep avalanche that broke 300-500' wide in weak snow at the bottom of the snowpack. It broke across two separate start zones and included a lower angle ridge (still around 30 degrees) in between that slid. E-NE aspect at 9,800'. HS-N-R3-D3-O.  Photo: GNFAC

     

     

  • Skiers on 03/29/2024 saw this small avalanche on Hyalite Peak that had likely happened early that morning or the day before. Photo: W. Hubbard

  • From obs: "Spotted this big guy on the east face of Blackmore today. Seemingly natural and I believe it occurred in the last 36 hours or so. Debris had last nights snow on it. I’d estimate it at D2." Photo: E. Heiman

  • From obs: "Spotted this big guy on the east face of Blackmore today. Seemingly natural and I believe it occurred in the last 36 hours or so. Debris had last nights snow on it. I’d estimate it at D2. " Photo E. Heiman

  • Skiers on 03/29/2024 saw this avalanche on the N face of Hyalite Peak from Divide Cirque. This avalanche likely occurred in the last 24 hours. Photo: E. Webb 

  • On 03/29/2024 skiers saw this recent avalanche on a NE aspect in the Divide Cirque at 9800'. This likely happened in the last 24 hours. Photo: E. Webb 

  • The avalanche occurred on the northernmost ridgeline in the Mt. Blackmore system near the waypoint at the top of the image. GNFAC/ Gaia

  • Two skiers were ascending a northeast-facing avalanche path on the northernmost ridgeline of Mount Blackmore around 1 PM when they triggered a large, dry slab avalanche that failed 3 feet deep, 150 feet wide, and ran 500 feet vertical. Debris piled up 4-8 feet deep and broke a number of mature trees. Photo: GNFAC

  • Two skiers were ascending a northeast-facing avalanche path on the northernmost ridgeline of Mount Blackmore around 1 PM when they triggered a large, dry slab avalanche that failed 3 feet deep, 150 feet wide, and ran 500 feet vertical. Debris piled up 4-8 feet deep. This photo captures the first area to avalanche on the climber's right side of the path. Photo: GNFAC

  • Two skiers were ascending a northeast-facing avalanche path on the northernmost ridgeline of Mount Blackmore around 1 PM when they triggered a large, dry slab avalanche that failed 3 feet deep, 150 feet wide, and ran 500 feet vertical. Debris piled up 4-8 feet deep. One skier was carried to the bottom left of the runout zone. Photo: GNFAC

  • Two skiers were ascending a northeast-facing avalanche path on the northernmost ridgeline of Mount Blackmore around 1 PM when they triggered a large, dry slab avalanche that failed 3 feet deep, 150 feet wide, and ran 500 feet vertical. Debris piled up 4-8 feet deep. One skier was carried to the bottom left of the runout zone. Photo: GNFAC

  • Two skiers were ascending a northeast-facing avalanche path on the northernmost ridgeline of Mount Blackmore around 1 PM when they triggered a large, dry slab avalanche that failed 3 feet deep, 150 feet wide, and ran 500 feet vertical. Debris piled up 4-8 feet deep. Photo: GNFAC

  • My partner and I were approaching Responsible FamilyMan via Avalanche Gulch early yesterday morning (3/18), and once we broke through the trees into the runout zone, we stumbled across a pretty large wet avalanche debris field. The debris terminated within ~50 yards of the max runout zone. Photo: R. Parsons

  • My partner and I were approaching Responsible Family Man via Avalanche Gulch early yesterday morning (3/18), and once we broke through the trees into the runout zone, we stumbled across a pretty large wet avalanche debris field. The debris terminated within ~50 yards of the max runout zone. Photo: R. Parsons

  • A wet loose snow avalanche on the southeast aspect on Mt Blackmore at 9700 to 9800 feet elevation. Photo: C Daniels

  • Skiers a few days ago saw several deep natural avalanches near the head of Swan Creek. These avalanches broke 2-5' deep, 2000' wide, and ran "full track". The exact date of when these avalanches happened is unknown but they likely happened over a week ago in the first few days of March. Photo: S. Reinsel

  • Skiers a few days ago saw several deep natural avalanches near the head of Swan Creek. These avalanches broke 2-5' deep, 2000' wide, and ran "full track". The exact date of when these avalanches happened is unknown but they likely happened over a week ago in the first few days of March. Photo: S. Reinsel

     

     

  • Skiers noted a large natural avalanche on the North face of Mt Blackmore that broke overnight. The crown was around 8 feet deep. Photo: E. Roman

  • Skiers noted a large natural avalanche on the North face of Mt Blackmore that broke overnight. The crown was around 8 feet deep. Photo: E. Roman

  • Skiers noted a large natural avalanche on the North face of Mt Blackmore that broke overnight. The crown was around 8 feet deep. Photo: E. Roman

  • One of several natural avalanches in the upper South Cottonwood drainage that skiers saw while in Hyalite. Photo: L. Gabrielson

  • One of several natural avalanches in the upper South Cottonwood drainage that skiers saw while in Hyalite. Photo: L. Gabrielson

  • One of several natural avalanches in the upper South Cottonwood drainage that skiers saw while in Hyalite. Photo: L. Gabrielson

     

  • This large avalanche was observed on Sunday, 03/03/2024 by riders in Portal Creek. Photo taken today, 03/07/2024. Photo: G. Edwards

     

  • Skiers from History Rock saw a few recent natural avalanches on Mt. Blackmore that likely happened during or near the end of a storm on 03/02-03/03. Photo: E. Webb

  • From obs: "Shot from the top of Flanders, ~1400 this afternoon, 3/3/2024. Big slide(s) on Arden and in Maid of the Mist. Looks like the skin track and ski track between the two slides got taken out. At first glance from across the way it looked like the skin track was crossing over the debris, but when zoomed in it looks like the debris overran the skin track and the ski track." Photo: M. Zia

Videos- Northern Gallatin

WebCams


Bozeman Pass, Looking SE

Snowpit Profiles- Northern Gallatin

 

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Weather Forecast Northern Gallatin

Extended Forecast for

14 Miles SE Gallatin Gateway MT

  • Tonight

    Tonight: Mostly clear, with a low around 51. West southwest wind around 8 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. North wind 8 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 75. South wind around 7 mph becoming northeast in the afternoon.

    High: 75 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. South southeast wind around 7 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 76. South wind 6 to 9 mph becoming west northwest in the afternoon.

    High: 76 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 56. Northwest wind 6 to 8 mph becoming south after midnight.

    Low: 56 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 75. South southwest wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 75 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

The Last Word

We began daily forecasts on December 7. 130 daily forecasts and 464 reported avalanches later, we wrapped up our daily forecasting season on April 14th. Read our SEASON SUMMARY to look back at the 2023-24 avalanche forecasting season.

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

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