Regional Conditions for Northern Gallatin

as of 5:00 am
Today0″ | NA
Apr 9 6″ | N/A
Apr 8 0″ | N/A
9980′     03/28 at 12:00
37.5℉
S - 0mph
Gusts 4mph
8100′   04/10 at 11:00
42℉
Depth
Bottom Line: Recent snow created small and isolated avalanche hazards which can be harmful, especially in high consequence terrain like above cliffs, rocks, trees or on firm, steep slopes. Wind slabs that formed yesterday will be more difficult to trigger today, but a few fresh drifts will grow with increasing west winds. As temperatures warm through the day, or if there is rain this afternoon, shallow wet loose slides could be triggered. The snowpack is generally stable, and avalanches are unlikely aside from small and isolated hazards. Watch for signs of recently drifted snow or the snow surface getting wet before you ride or travel below steep slopes.
Primary Problem: Wind-Drifted Snow

Past 5 Days

Tue Apr 6

Moderate
Wed Apr 7

Moderate
Thu Apr 8

Low
Fri Apr 9

Moderate
Today

Low

Avalanche Activity- Northern Gallatin

Out of Advisory Area
Other place
Natural wind slabs in Absaroka
Incident details include images
Other place
SS-N-R1-D1
Aspect: NE
Coordinates: 45.4959, -110.4490
Caught: 0 ; Buried: 0

From obs 4/9/21: "we saw widespread natural wind slabs on N-NE eastern slopes in the Northern Absarokas (photo)...."


More Avalanche Details
Cooke City
Miller Ridge
Collapse in wet snow near Cooke
Incident details include images
Miller Ridge
Elevation: 9,000
Aspect: S
Coordinates: 45.0423, -109.9650
Caught: 0 ; Buried: 0

Skiers had a collapse which made this crack on a south facing slope with a shallower, wet snowpack around 9,000' near Cooke City.


More Avalanche Details
Out of Advisory Area
Other place
Wet Slab in Main Boulder
Incident details include images
Other place
WS-N-R2-D2-O
Elevation: 8,200
Coordinates: 45.6553, -110.5580
Caught: 0 ; Buried: 0

A wet slab was reported on 4/4/21 around 8,200' elevation in the Main Boulder drainage south of Big Timber, outside of our advisory area. It happened that day or very recently during extended above freezing temperatures. 


More Avalanche Details

Photos- Northern Gallatin

Displaying 1 - 40
  • From obs 4/9/21: "...we saw widespread natural wind slabs on N-NE eastern slopes in the Northern Absarokas (photo). Winds increased throughout the morning, and evidence of wind transport became more apparent at higher elevations. We found that on aspects unaffected by wind loading, the new snow layer was not cohesive and only saw minor sluffing." Photo: E. Schreier

  • Skiers had a collapse which made this crack on a south facing slope with a shallower, wet snowpack around 9,000' near Cooke City. Photo: J. Redfield

  • This wet slab was reported on 4/4/21 around 8,200' elevation in the Main Boulder drainage south of Big Timber, outside of our advisory area. It happened that day or very recently during extended above freezing temperatures. Photo: G. Smith

  • This was a natural wind-slab avalanche releasing below the upper cliffs on Saddle Peak on March 28th. Photo: Anonymous

  • Natural avalanches on wind loaded slope occurred on 3/28/21 in Hyalite. Photo: B. Greene

  • Extreme winds on 3/28/21 transported snow that fell over the past week into fresh wind slabs. Photo: BSSP

  • Natural avalanche observed at the head of Flanders creek on 3/27/21. Photo: D. Britt

  • From obs: "Observed a small skier triggered slide on the middle ridge of MT Blackmore today, skier was cutting across when it released." Photo: C Crowe

  • Skiers triggered this 4-6" deep wind slab in Hyalite on 3/27/21. Click link below for more info.

  • From obs: "Deep slab avalanche in Blackmore Basin that appeared to break on the depth hoar near the bottom of the snowpack. It was on a wind loaded NE facing slope at approx. 9,500 and looked to break on a slope in the 35-40 degree range. The crown was about 8'-10' deep and 200' wide. It broke to the ground and ripped out several small trees." Photo: JR Mooney

  • From obs: "Skied Mount Blackmore today (3/27/21)... around 1 pm a skier remote triggered a deep slab from ~50 feet away (around the corner lookers right in the attached picture). Broke at the ground, 10-15feet deep, and took out a small tree." Photo: M. Lavery

  • From obs: "Skied Mount Blackmore today (3/27/21). Saw a natural avalanche on Alex Lowe peak just south of the Hellmouth...". Photo: M. Lavery

  • From obs: "Skied Mount Blackmore today. Saw... 4 skier triggered slides on the E face between the Blackmore and Alex Lowe Basins. Most appeared to be wind slabs... " Photo: M. Lavery

  • Ian and Dave stop to do a quick stability test as they hunt for a layer of weak snow 1-2 feet under the surface. Photo: GNFAC

  • 21 March 2021: A pair of skiers triggered this slide on the east face of Mount Blackmore. No one was caught. Photo: Anonymous

  • On Monday, March 22, skiers toured west of Blackmore Lake and observed a natural slide of the new snow below a cornice. Photo: E. Schreier

  • Skiers booting up the N Coulior of the Mummy (from Flanders), triggered this small 6" soft slab avalanche without consequence. Photo: H. Coppolillo

     

  • A pair of skiers were ascending the east-face of Alex Lowe Peak when they triggered an avalanche that broke 150' above them. One skier was caught and carried 250 vertical feet. No one was injured or buried.

  • A pair of skiers were ascending the east-face of Alex Lowe Peak when they triggered an avalanche that broke 150' above them. One skier was caught and carried 250 vertical feet. No one was injured or buried. Photo: Anonymous

  • From obs: "On our way up the summer trail route to Hyalite Peak our party of three remotely triggered a small avalanche from the skin track at around 9,600ft on a east facing aspect. The storm slab went about 4 inches deep and 150-200ft across a small roll over feature. We were about 150ft away when we triggered the slide." Photo: C. Kussmaul

  • Crown of deep slab avalanche on Arden Peak at the back of Maid of the Mist basin in Hyalite. Probably broke between Feb 22 and Feb 28, 2021 Photo: GNFAC

  • Deep slab avalanche on Arden Peak at the back of Maid of the Mist basin in Hyalite. Probably broke between Feb 22 and Feb 28, 2021 Photo: GNFAC

  • Deep slab avalanche on Arden Peak at the back of Maid of the Mist basin in Hyalite. Probably broke between Feb 22 and Feb 28, 2021 Photo: GNFAC

  • Deep slab avalanche on Arden Peak at the back of Maid of the Mist basin in Hyalite. Probably broke between Feb 22 and Feb 28, 2021 Photo: GNFAC

  • From obs 3/6/21: "Two large natural avalanches in Maid of the Mist Basin. One of them ran on the east face of Arden Peak (Peak 10,201) which propagated across the entire face. Could have been triggered by a cornice fall then stepped down to deeper layers. The second was on the NE face of the peak Fat Maid and Skinny Maid come from. Also propagated across the entire slope. Crown height between 6'-8' in most places." Timing of these slides is unknown. Probably in the last week, but maybe older. Photo: S. Enloe

  • From obs 3/6/21: "Two large natural avalanches in Maid of the Mist Basin. One of them ran on the east face of Arden Peak (Peak 10,201) which propagated across the entire face. Could have been triggered by a cornice fall then stepped down to deeper layers. The second was on the NE face of the peak Fat Maid and Skinny Maid come from. Also propagated across the entire slope. Crown height between 6'-8' in most places." Timing of these slides is unknown. Probably in the last week, but maybe older. Photo: S. Enloe

  • We saw these recent wet loose avalanches on 3/6/21. SW aspect, 9,100'. They likely ran during above freezing temperatures between 3/3 and 3/5. Photo: GNFAC

  • From obs: "Small D1 avalanche on south-eastern aspect around 7800ft. Looks like solar released on older layer a day or two ago."

    Photo: M. Mailly

  • From obs: "While touring above the canyon this morning, I noticed a very recent wet slide (would guess this incident occurred yesterday afternoon, March 4th). This was a skier triggered slide on a E aspect at an elevation of 7200. This slide was roughly 50 feet wide and ran about 50 feet, I estimated this crown to be 2-3 feet deep, slid all the way to the ground. This occurred below a steep roller."

    Photo: T. Saulnier

  • "Ran into this slide today. Tail end of Middle Basin. Seemed to have happened sometime in the last week (2/23-24). Most likely during the heavy windloading event. Seemed to run on very small facets we believe formed during the cold spell before the last big storm hit." Photo: S. Knowles
  • "On the drive back we saw a large crown on the NW face of Big Horn peak..." (likely broke Sat or Sun, 2/27-28). Photo:  S. Jonas

  • "Observed two dry-loose slides and one slab avalanche on the NE-facing slope of Peak 10,024 in the Shower Creek basin on Sunday, 2/28 - all were presumably naturally triggered." Photo: K. Busby

  • "Observed an old crown line and covered avy debris on a NW-facing slope looking SE from Hyalite Lake." Likely occurred around 2/24/21. Photo: K. Busby

  • Wet loose avalanches released in the warm sunshine on Tuesday, March 2nd. We expect many more in the coming days. Photo: S. Jonas

  • Sled Skiing in Third Yellow mule... after an air onto the slope the impact from landing resulted in a fracture and failure to / near the ground... in addition, a remote trigger occurred on adjacent slope... 200-300 ft to the skiers right. No body was caught in either slide. Skier that initiated failure was moving at high speed and was beyond slide path before majority of snow movement began. Photo: W. Miller

  • Sled Skiing in Third Yellow mule... after an air onto the slope the impact from landing resulted in a fracture and failure to / near the ground... in addition, a remote trigger occurred on adjacent slope... 200-300 ft to the skiers right. No body was caught in either slide. Skier that initiated failure was moving at high speed and was beyond slide path before majority of snow movement began. Photo: W. Miller

  • Sled Skiing in Third Yellow mule... after an air onto the slope the impact from landing resulted in a fracture and failure to / near the ground... in addition, a remote trigger occurred on adjacent slope... 200-300 ft to the skiers right. No body was caught in either slide. Photo: W. Miller

  • This avalanche was triggered on Sunday, 2/28, when a skier released another slide 2-300 feet away. It broke at the same time. No one was caught. This was in the Third Yellow Mule on Buck Ridge.  Photo: W. Miller

  • Photo: C. Dokken

  • "Saw this crown the morning of 2/28 from G1 while climbing." Reported to GNFAC (earlier in the week). Probably slid last week during other large slides nearby. Photo: V. Beineke

Videos- Northern Gallatin

WebCams


Bozeman Pass, Looking SE

Weather Forecast Northern Gallatin

Extended Forecast for

14 Miles SE Gallatin Gateway MT

  • This
    Afternoon

    This Afternoon: A 40 percent chance of snow, mainly after 4pm.  Increasing clouds, with a high near 39. Breezy, with a southwest wind around 22 mph, with gusts as high as 32 mph.  Total daytime snow accumulation of less than a half inch possible.

    Chance Snow
    and Breezy

    High: 39 °F

  • Tonight

    Tonight: Snow likely before 1am, then a slight chance of snow after 4am.  Patchy blowing snow between 7pm and 1am. Mostly cloudy, with a low around 11. Wind chill values as low as -5. Breezy, with a west northwest wind 15 to 23 mph, with gusts as high as 33 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Snow Likely
    and Patchy
    Blowing Snow

    Low: 11 °F

  • Sunday

    Sunday: A 30 percent chance of snow, mainly before 3pm.  Partly sunny, with a high near 26. Wind chill values as low as -5. West northwest wind 10 to 16 mph, with gusts as high as 23 mph.  New snow accumulation of less than a half inch possible.

    Chance Snow

    High: 26 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 15. Light and variable wind becoming south 6 to 11 mph after midnight.

    Partly Cloudy

    Low: 15 °F

  • Monday

    Monday: A 30 percent chance of snow after 1pm.  Mostly sunny, with a high near 27. South southwest wind 5 to 11 mph becoming north northeast in the afternoon.  Little or no snow accumulation expected.

    Mostly Sunny
    then Chance
    Snow

    High: 27 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of snow before 7pm.  Mostly cloudy, with a low around 14. Northeast wind around 11 mph, with gusts as high as 18 mph.  Little or no snow accumulation expected.

    Chance Snow
    then Mostly
    Cloudy

    Low: 14 °F

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after 1pm.  Partly sunny, with a high near 24. North northeast wind 9 to 13 mph, with gusts as high as 23 mph.  Little or no snow accumulation expected.

    Chance Snow

    High: 24 °F

  • Tuesday
    Night

    Tuesday Night: A chance of snow.  Mostly cloudy, with a low around 16. North northeast wind around 14 mph, with gusts as high as 24 mph.

    Chance Snow

    Low: 16 °F

  • Wednesday

    Wednesday: Snow likely, mainly after 1pm.  Mostly cloudy, with a high near 24.

    Snow Likely

    High: 24 °F

The Last Word

We will end regular forecasts this Sunday and will begin issuing weather, snowpack and avalanche updates every Monday and Friday as well as updates to social media through April. Avalanches will still be possible if there is snow on the ground. Remain vigilant with safe travel practices and snowpack assessments for the duration of your riding season.


  <<  This is the most recent forecast.