Trip Planning for Northern Gallatin

as of 5:00 am
Today1″ | 20-40 SW
Mar 4 0″ | 10-25 SW
Mar 3 5″ | 20-55 SW
9982′     03/05 at 07:00
1.9℉
SW - 31mph
Gusts 45 mph
8100′     03/05 at 07:00
12℉
53″ Depth
Primary Problem: Persistent Weak Layer
Bottom Line: Dangerous avalanche conditions across the advisory area have been the norm since early January, and today is no different. An incoming snowstorm will add weight to a snowpack structure that has proven itself untrustworthy. Avalanches failing 1-2 feet deep within the new and wind-drifted snow are likely, and large enough to bury or injure backcountry travelers. However, very large avalanches breaking 3-4+ feet on persistent weak layers remain the primary concern. Avoidance is critical, and the only way to ensure this is to avoid backcountry terrain steeper than 30 degrees and avalanche runout zones.

Past 5 Days

Fri Mar 1

Considerable
Sat Mar 2

Considerable
Sun Mar 3

Considerable
Mon Mar 4

Considerable
Today

Considerable

Relevant Avalanche Activity

Northern Gallatin
Mt Blackmore
Natural Activity on Mt. Blackmore
Incident details include images
Mt Blackmore
L-N
Aspect: E
Coordinates: 45.4444, -111.0040
Caught: 0 ; Buried: 0

From obs on 03/03/2024: "White touring in the History Rock area, I spotted a couple of recent slides on the NW shoulder of Mt. Blackmore. From a distance, these look like dry-loose slides on the recent snow interface around 8,500ft. on a N-NE aspect."

 


More Avalanche Details
Northern Gallatin
Maid of the Mist
Natural Avalanches on Arden peak
Incident details include images
Maid of the Mist
N-D2.5
Coordinates: 45.4164, -110.9700
Caught: 0 ; Buried: 0

Skiers on 03/03/2024 saw several natural avalanches that happened near Maid of the Mist on Arden Peak. These avalanches likely happened between 03/01/2024 and the morning of 03/03/2024

 

From obs on 03/04/2024: "Continued signs of instability on a tour in Maid of the Mist Basin. A couple large collapses down low in the trees, wind slabs above tree line on variable aspects due to swirling wind up high. Large avalanche crown (10’ - 12’ in places) at the back of the basin which looked to have been trigger from cornice fall 3-4 days ago. ECTP 28 55cm off of ground on a 5cm thick layer of facets. Pit was dug on an east facing slope at 9,100 feet."


More Avalanche Details
Northern Gallatin
Hyalite - main fork
Shooting Cracks in Hyalite
Incident details include images
Hyalite - main fork
Coordinates: 45.4472, -110.9620
Caught: 0 ; Buried: 0

From obs: "Toured to the zipper for some 25° meadows and while the skiing was excellent, the stability was not. We triggered numerous thundering whumphs and got shooting cracks, the largest of which propagated at least 100' wide! See snow profile attached with test results."


More Avalanche Details

Relevant Photos

Displaying 1 - 40
  • 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.

  • From obs: "Several small slabs pulled out above The Shimmy, left of Cleo's. Observed from across the valley while climbing the Dribbles. Did not observe them run, only saw the crowns. Unknown date of avalanches, but crowns were quite distinct from across the way." Photo: M. Zia

  • On 02/22/2024 we saw a natural avalanche in the Divide Cirque that probably happened late last week near 02/17/2024. Photo: GNFAC

  • On 02/22/2024 from the Divide Cirque we saw a natural avalanche near Overlook Mountain that probably happened late last week near 02/17/2024. Photo: GNFAC

  • Observed on 02/19/2024: From obs: "From the approach trail to Mummy II we saw two large crowns on the ridge associated with Mt. Bole. Not sure when they happened, but they looked pretty big!" Photo: M. Bjornsson

  • Observed on 02/19/2024: From obs: "From the approach trail to Mummy II we saw two large crowns on the ridge associated with Mt. Bole. Not sure when they happened, but they looked pretty big!" Photo: M. Bjornsson

  • Observed on 02/19/2024: From obs: "From the approach trail to Mummy II we saw two large crowns on the ridge associated with Mt. Bole. Not sure when they happened, but they looked pretty big!" Photo: M. Bjornsson

  • Climbers in Hyalite saw an avalanche that likely happened in the last 48 hours above Twin Falls on 02/19/2024. The trigger is unknown, 3' at the deepest point, and broke 100' wide. Photo: R. Parsons 

     

  • Climbers in Hyalite saw an avalanche that likely happened in the last 48 hours above Twin Falls on 02/19/2024. The trigger is unknown, 3' at the deepest point, and broke 100' wide. Photo: R. Parsons 

     

  • Climbers in Hyalite saw an avalanche that likely happened in the last 48 hours above Twin Falls on 02/19/2024. The trigger is unknown, 3' at the deepest point, and broke 100' wide. Photo: R. Parsons 

     

     

  • A skier on 02/18/2024 saw a large natural avalanche on the NE face south of Flanders that likely happened on 02/15/2024. Photo: Anonymous 

  • From obs 2/17/24: "Lots of natural activity up buck ridge. The one photoed looked like it popped off this morning. Most activity we saw seemed to be on northern facing aspects" Photo: M. Forbes

  • From facebook: "Rode up Portal creek today... We triggered 4 avalanches with the farthest one being 300 yards away. The one in the photo was the scariest one. We were playing below the windy pass hillclimb and the chute next to it let go. We had a sledder almost get caught in it, but thankfully everyone was ok. It's scary out there!"

  • Do you like to hike? Do you like to ski? Then the King & Queen of the Ridge is for you. Hike, ski and raise money for the Friends of the Avalanche Center in their 2nd biggest fundraiser of the year. Join the effort to promote and support avalanche safety and awareness! Fundraising prizes for top 5 individuals who raise over $500. No racing is necessary to compete for the fundraising prizes. Info to fundraise is HERE or donate here. Race participants for the [insert dates] event must register separately with Bridger Bowl here.

  • Climbers in Hyalite saw an avalanche near Solstice that happened on 01/21. This avalanche is 1' deep at the crown and with 18" of facets snow below. Photo: R. Meshew

  • Climbers in Hyalite saw an avalanche near Solstice that happened on 01/21. This avalanche is 1' deep at the crown and with 18" of facets snow below. Photo: R. Meshew

  • From obs: "The crown was just over 2ft deep at its max and 150ft+ wide. The were signs of recent wind loading as we approached the bowl prior to the slide." Photo. T. Hoefler

  • The debris of an avalanche that was triggered by skiers that was triggered 400 feet above them. The skiers were not on the path of the avalanche. Photo: T. Hoefler

  • Photo: T. Hoefler

  • Skiers triggered an avalanche on an east-facing slope at 9350ft.

    From obs: "The crown was just over 2ft deep at its max and 150ft+ wide. The were signs of recent wind loading as we approached the bowl prior to the slide. We did not observe any other avalanches while we were out." Photo: T. Hoefler

  • Skiers in the SE bowl of Flanders triggered an avalanche from the bottom of the slope. This happened on 01/20.

    From Obs: "as he turned into the bowl, a remote triggered avalanche ripped out above him. He was fast to reach a safe position in the trees by the time the avalanche finished its ride. The photo shows the 3 ski tracks, and the most left one is what remote triggered above." Photo: Anonymous 

  • From obs: "We considered skiing east into middle just before the prayer flags, but when approaching the slope to dig a pit we got a significant collapse and decided to ski a more conservative pitch further north. When continuing north on the ridge we saw a recent cornice collapse which triggered an avalanche" This avalanche was triggered by skiers breaking cornices on 01/20. Photo: M. Zenker

     

     

  • Skiers saw a recent natural avalanche on the west side of Mt. Blackmore. Photo: S. Lowe

  • From obs: "The crown of the westward slide looked to be around 4'. Like the one reported the other day, it ran almost to the skin track. Winds were high in the basin and on the ridge tops, transporting snow into moderately stiff slabs." Photo: S. Lowe

  • A natural avalanche to the lookers left of the summit of Mt. Blackmore. 

    From obs: "I noticed new debris coming out of the lookers left chute on Southeast face of Blackmore. got closer to the ridge and noticed this. happened last night or this morning. 5 feet deep 50 to 100 ft wide and ran roughly 800 feet." 

    Photo: N. English

  • Avalanche triggered on 01/19. From obs on 01/20: "Off the top on the face of Blackmore- Talked to the guy that set this slide off, it was triggered while he was skiing down yesterday (01/19) morning from the summit. Ran all the way down to almost the skin track." Photo: N. English

     

     

  • From obs: "About 50' from our pit we remotely triggered two D1 slab avalanches which broke on the roll over 150' above us. Crowns looked between 1-2' and 20-30' wide. The larger of the two ran 100' more or less." Photo: S. Lowe

  • From obs: "About 50' from our pit we remotely triggered two D1 slab avalanches which broke on the roll over 150' above us. Crowns looked between 1-2' and 20-30' wide." Photo: S. Lowe

  • From Obs:  "While skiing one of our intended slopes, one of my partners skied over a small rollover and as he arrived at the bottom of the small slope a pocket had released above him and stopped just above where he was standing. The culprit was again the recent snow on top of older faceted snow." Photo: Anonymous 

  • Wind loaded gully above Crypt Orchid in Hyalite. Photo: T Hughes

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

Winter Weather Advisory until March 6, 05:00amClick here for hazard details and duration Winter Weather Advisory
  •  Winter Weather Advisory until March 6, 05:00am

    NOW until
    5:00am Wed

    Winter Weather Advisory

  • Today

    Today: Snow. The snow could be heavy at times.  Widespread blowing snow, mainly before 10am. High near 21. Wind chill values as low as -15. Breezy, with a south southwest wind 21 to 26 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 39 mph.  Chance of precipitation is 80%. Total daytime snow accumulation of 2 to 4 inches possible.

    Heavy Snow
    and Blowing
    Snow

    High: 21 °F

  • Tonight

    Tonight: Snow likely, mainly before midnight.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 7. Wind chill values as low as zero. West wind 6 to 9 mph becoming north northwest in the evening.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Snow Likely
    then Slight
    Chance Snow
    and Patchy
    Fog

    Low: 7 °F

  • Wednesday

    Wednesday: A 20 percent chance of snow after 11am.  Mostly sunny, with a high near 24. Wind chill values as low as -5. West wind 7 to 10 mph.

    Slight Chance
    Snow

    High: 24 °F

  • Wednesday
    Night

    Wednesday Night: Mostly cloudy, with a low around 9. Wind chill values as low as zero. West wind 6 to 9 mph becoming south in the evening.

    Mostly Cloudy

    Low: 9 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 23. South southwest wind 6 to 8 mph becoming northwest in the afternoon.

    Mostly Sunny

    High: 23 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 6. Northwest wind 6 to 8 mph becoming south southwest in the evening.

    Partly Cloudy

    Low: 6 °F

  • Friday

    Friday: Sunny, with a high near 28. West wind 6 to 9 mph.

    Sunny

    High: 28 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 12. South southwest wind around 10 mph.

    Mostly Clear

    Low: 12 °F

The Last Word

On Friday there were two snowmobilers killed in separate avalanches, in Washington and northern Idaho. Our deepest condolences go out to the families, friends, and all involved.

03 / 4 / 24  <<  
 
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