Trip Planning for Northern Gallatin

as of 5:00 am
Today0″ | NA
Apr 11 0″ | NA
Apr 10 1″ | NA
9982′     03/30 at 12:00
23.8℉
W - 1mph
Gusts 4 mph
8100′     04/12 at 15:00
53℉
57″ Depth
Primary Problem: Wet Snow
Bottom Line: By mid-morning, on sunny slopes, any surface crusts that formed overnight will be breaking down and wet avalanche danger will be rising. Mostly we’re expecting relatively small wet loose slides, but the whole array of wet snow avalanche concerns are possible today, including wet loose slides entraining the whole season’s snowpack, wet slabs, or cornice collapses. Plan to get off sunny slopes early. Triggering avalanches in dry snow is becoming less likely, but is still possible, particularly on wind-loaded, high elevation, shady slopes.

Past 5 Days

Mon Apr 8

Considerable
Tue Apr 9

Moderate
Wed Apr 10

Considerable
Thu Apr 11

Considerable
Today

Considerable

Relevant Avalanche Activity

Northern Gallatin
Hyalite Peak
Hyalite Peak Slide
Incident details include images
Hyalite Peak
SS-N-R1-D1-I
Elevation: 10,200
Aspect: N
Coordinates: 45.3810, -110.9610
Caught: 0 ; Buried: 0

From obs: "Spotted two fresh natural slides, one within Divide cirque on a NE aspect @ ~9,800 (D1, R1), and another on the N face of Hyalite @ ~10,200ft. that was mostly out of view, but could be estimated around similar size and destructiveness. These seem to have occurred within the last 24 hours, or after snowfall, likely windslabs on lee slopes." 

 


More Avalanche Details
Northern Gallatin
Divide Cirque
Divide Cirque Slide
Incident details include images
Divide Cirque
SS-N-R1-D1-I
Elevation: 9,800
Aspect: NE
Coordinates: 45.4026, -110.9750
Caught: 0 ; Buried: 0

From obs: "Spotted two fresh natural slides, one within Divide cirque on a NE aspect @ ~9,800 (D1, R1), and another on the N face of Hyalite @ ~10,200ft. that was mostly out of view, but could be estimated around similar size and destructiveness. These seem to have occurred within the last 24 hours, or after snowfall, likely windslabs on lee slopes."


More Avalanche Details
Northern Gallatin
Flanders Creek
Natural deep slab avalanche, Flanders Mtn
Incident details include images
Incident details contain video
Flanders Creek
HS-N-R3-D3-O
Elevation: 9,800
Coordinates: 45.4360, -110.9420
Caught: 0 ; Buried: 0

We toured up to Flanders Mtn. to take down the weather station for the season (before the road closes on Monday, Apr 1). The main observation is a big, deep 2-6' deep avalanche that broke 300-500' wide in weak snow at the bottom of the snowpack. Photos and video attached. 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. 

 


More Avalanche Details

Relevant Photos

Displaying 1 - 40
  • 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

  • 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

     

  • Skiers experienced widespread cracking and collapsing while touring in Hyalite. The largest of which shot 100' out in front of them. Photo: S. Lowe

  • Skiers on 03/02/2024 observed several natural avalanches that likely happened in the last 24 hours. Photo: Anonymous 

  • Skies on 03/02/2024 observed several natural avalanches that likely happened in the last 24 hours. Photo: Anonymous 

  • Photo from IG, slide occurred night of 3/1.

  • Observed on 03/01: Riders in Hyalite saw an avalanche on an east-facing slope near Maid of the Mist. This likely happened between 02/29/2024- 03/01/2024. Photo: Anonymous

  • Skiing some dog pow across Hyalite reservoir between 7200-7800’ on a NE pitch I got lots of whumphs and shooting cracks while braking trail. This was a shallower snowpack than most other areas, it was still easy to break into basil facets with skis on.

  • Skiing some dog pow across Hyalite reservoir between 7200-7800’ on a NE pitch I got lots of whumphs and shooting cracks while braking trail. This was a shallower snowpack than most other areas, it was still easy to break into basil facets with skis on.

  • From IG: This avalanche was from this morning (02/28). It was windy and the gully was likely wind-loaded. One video shows the debris and crown. The pin on the map (below) shows the location of the debris.

Videos- Northern Gallatin

WebCams


Bozeman Pass, Looking SE

Snowpit Profiles- Northern Gallatin

 

Select a snowpit on the map to view the profile image

Weather Forecast Northern Gallatin

Extended Forecast for

14 Miles SE Gallatin Gateway MT

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight.  Partly cloudy, with a low around 38. South southwest wind 14 to 18 mph, with gusts as high as 26 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 38 °F

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after 5pm.  Mostly sunny, with a high near 54. South southwest wind around 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    Sunny then
    Chance
    Showers

    High: 54 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers before 7pm.  Mostly clear, with a low around 37. West southwest wind 8 to 13 mph becoming south southeast in the evening.

    Chance
    Showers then
    Mostly Clear

    Low: 37 °F

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm.  Sunny, with a high near 55. South southwest wind 10 to 14 mph, with gusts as high as 18 mph.

    Sunny then
    Slight Chance
    Showers

    High: 55 °F

  • Sunday
    Night

    Sunday Night: A slight chance of rain showers before 10pm, then a slight chance of snow showers.  Partly cloudy, with a low around 33. South southwest wind 10 to 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

    Low: 33 °F

  • Monday

    Monday: A chance of snow showers before 4pm, then a chance of rain and snow showers.  Partly sunny, with a high near 46. South southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Slight Chance
    Snow Showers
    then Chance
    Rain/Snow

    High: 46 °F

  • Monday
    Night

    Monday Night: A chance of rain and snow before 10pm, then a chance of snow.  Mostly cloudy, with a low around 28. West northwest wind around 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Chance
    Rain/Snow
    then Chance
    Snow

    Low: 28 °F

  • Tuesday

    Tuesday: Snow likely, mainly after 7am.  Mostly cloudy, with a high near 35. West northwest wind 11 to 15 mph, with gusts as high as 23 mph.

    Snow Likely

    High: 35 °F

  • Tuesday
    Night

    Tuesday Night: Snow likely.  Mostly cloudy, with a low around 18.

    Snow Likely

    Low: 18 °F

The Last Word

On Tuesday, April 9th, Doug Chabot wrote his final avalanche forecast for the Gallatin National Forest Avalanche Center. Doug, thank you for your friendship, mentorship and 29 years of service to Southwest Montana’s community. Congratulations on your fast approaching retirement!

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