Trip Planning for Southern Madison

as of 5:00 am
Today0″ | NA
Apr 11 0″ | NA
Apr 10 3″ | NA
9460′     03/26 at 10:00
16.2℉
NW - 10mph
Gusts 19 mph
9000′     04/12 at 15:00
50℉
69″ 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

Moderate
Tue Apr 9

Moderate
Wed Apr 10

Considerable
Thu Apr 11

Considerable
Today

Considerable

Relevant Avalanche Activity

Southern Madison
Sphinx Mountain
Cornice Collapse on the Sphinx
Incident details include images
Sphinx Mountain
C-ASu
Coordinates: 45.1582, -111.4770
Caught: 0 ; Buried: 0

From obs: " Unintentionally triggered a large cornice collapse on the south face of the Sphinx. " 


More Avalanche Details
Southern Madison
Taylor Fork
Small Wind-Slab Avalanche Sunlight Basin
Incident details include images
Incident details contain video
Taylor Fork
SS-N-R1-D1-I
Elevation: 9,000
Aspect: E
Coordinates: 45.0607, -111.2720
Caught: 0 ; Buried: 0

We saw one new wind-slab avalanche in Sunlight Basin. It was small. From a distance, it appeared to be about 6" deep and 30' across (R1-D1).


More Avalanche Details

Relevant Photos

Displaying 1 - 40
  • Skiers unintentionally triggered this cornice above the south face of the Sphinx. No one was caught. Photo: Anonymous

  • There was a full-depth wet slab avalanche that broke last week during the warm-up on Lightning Ridge. GNFAC

     

  • We saw one new wind-slab avalanche in Sunlight Basin. It was small. From a distance, it appeared to be about 6" deep and 30' across (R1-D1). GNFAC

  • Spring cornices are growing very large above many wind-loaded slopes. GNFAC

  • We rode from Taylor Fork through Cabin Creek on March 17. We saw a few recent slab avalanches that happened after the last snowfall, and some recent natural wet loose avalanches, and a cornice fall. Photo: GNFAC

  • We rode from Taylor Fork through Cabin Creek on March 17. We saw a few recent slab avalanches that happened after the last snowfall, and some recent natural wet loose avalanches, and a cornice fall. Photo: GNFAC

  • We rode from Taylor Fork through Cabin Creek on March 17. We saw a few recent slab avalanches that happened after the last snowfall, and some recent natural wet loose avalanches, and a cornice fall. Photo: GNFAC

  • We rode from Taylor Fork through Cabin Creek on March 17. We saw a few recent slab avalanches that happened after the last snowfall, and some recent natural wet loose avalanches, and a cornice fall. Photo: GNFAC

  • A natural or human-triggered avalanche near the skin track at Bacon Rind. Photo: GNFAC

  • A natural or human-triggered avalanche near the skin track at Bacon Rind. Photo: GNFAC

  • Deep shooting cracks near an avalanche at Bacon Rind. Photo: GNFAC

  • We rode into Tepee Basin and saw two recent avalanches on 3/2/24. This one looked like it maybe happened yesterday, on a heavily wind-loaded slope below some cornices, 2-2.5' deep and 250-300' wide. Photo: GNFAC

  • We rode into Tepee Basin and saw two recent avalanches on 3/2/24. One looked like it happened this morning on a treed ridgeline, 1-1.5' deep 150-200' wide. Photo: GNFAC

  • Skiers on 03/02/2024 saw a natural avalanche on an east-facing slope and broke 3-4' deep and 100' wide. This avalanche likely happened in the last 24 hours. Photo: A. Faulkner

     

  • We noted a relatively small avalanche on the wall of Sage Basin that failed naturally within the storm snow. Photo: GNFAC

  • Skiers on 02/22/2024 observed an old avalanche that appeared to of been natural that happened sometime last week near 02/15 -02/16. Photo: H. Bigos-Lowe

  • The skillet slid sometime recently. Based on the snow on top I'm guessing Thursday-Friday last week (Feb 15-16th), but it could have happened up to a week earlier. Broke ~2 ft deep, 150 ft wide, and it was hard to tell how far it ran, but I'm estimating 200 vertical feet. Photo: GNFAC

  • From IG: 2 avalanches from either this morning or yesterday at the bottom of Skyline ridge 2’ at the crown

  • From FB 02/17/24: "Observed runout debris from a small avalanche on a south facing forested slope in Upper Tepee Basin. Shows avalanches can occur through forested areas." Photo: C. Sexton

  • From obs: "We observed another, probably rider triggered avalanche in Wapiti Creek that broke on old snow near the ground ~2 feet deep and ~60ft across." Photo: S. Jett

  • From obs: "We observed large natural avalanches from afar on the west side of Snowslide Mountain. We observed these from a few miles away and were probably several feet deep and a few hundred feet wide." Photo: S. Jett

  • From obs: "We observed large natural avalanches from afar on...the east aspect of a peak south of Woodward Mountain. We observed these from a few miles away and were probably several feet deep and a few hundred feet wide." Photo: S. Jett

  • Natural avalanche in Sunlight Basin. Photo taken 2/14/24. Slide appeared to be a few days old. Photo Credit: GNFAC

  • Avalanche in Sage Basin that appeared likely to have been remotely triggered by a snowmobiler from ~100 ft away. Photo taken 2/14/24. Slide was fresh, likely broke yesterday, 2/13/24. Photo Credit: GNFAC

  • Natural avalanche in Sage Basin. Photo taken 2/14/24. Slide appeared to be a few days old. Photo Credit: GNFAC

  • Natural avalanche in Sage Basin. Photo taken 2/14/24. Slide appeared to be a few days old. Photo Credit: GNFAC

  • An overview photo of the 3/4 mile wide avalanche in Tepee Basin. Photo: A. Vaughn

  • Photo of a natural avalanche that was reported on 02/09/2024. Photo taken on 02/10/2024. Photo: Z. Peterson

  • Photo of a natural avalanche that was reported on 02/09/2024. Photo taken on 02/10/2024. Photo: Z. Peterson

  • A portion of the debris pile from a rider triggered an avalanche on 02/07/2024. This avalanche broke 3/4 of a mile wide and had multiple large piles of debris with this being one of the largest. 

  • The contiuation of the crown of an avalanche that was remotely triggered by a rider on 02/07. This was a very wide avalanche that broke 3/4 of a mile long, 3-4' deep. Photo: GNFAC

  • The crown of an avalanche that was remotely triggered by a rider on 02/07. This was a very wide avalanche that broke 3/4 of a mile long, 3-4' deep. Photo: GNFAC

  • This crack opened up above our snowpit as we made our exit away from the steeper terrain of the "Skillet" run toward low-angle trees. Photo: GNFAC

  • We triggered booming collapses and watched cracks shoot out across terrain features and snow shake off nearby trees for the entirety of our tour from the meadow near the car to the top of the Skillet. Photo: GNFAC

  • From obs: "We heard numerous large-scale collapses and witnessed the development of propagating tensile fractures on a 20°-25° slope along the skin track.... We skied this location 4 times this week. Each time, we experienced collapsing and fracturing within the snowpack. and stuck to skiing conservative, low-angle lines." Photo: T. Kalakay

  • We saw multiple old avalanches that happened sometime in the last week, likely near the end of the last storm. Photo: GNFAC

  • We saw multiple old avalanches that happened sometime in the last week, likely near the end of the last storm. Photo: GNFAC

  • Recent avalanches seen in Taylor Fork near Beaver Creek. These likely happened on 01/31/2024. Photo: GNFAC

  • From email: "A friend and I were riding in lower Tepee today, staying on low angle terrain because of the current avalanche conditions. When side hilling on a 24 degree slope, I saw cracks shoot out approximately 100 feet around me. It was a smaller slope, but things are still pretty sensitive. This was a north facing slope in a valley that shouldn’t have been too wind loaded. " Photo: J. Norlander

  • From email: "A friend and I were riding in lower Tepee today, staying on low angle terrain because of the current avalanche conditions. When side hilling on a 24 degree slope, I saw cracks shoot out approximately 100 feet around me. It was a smaller slope, but things are still pretty sensitive. This was a north facing slope in a valley that shouldn’t have been too wind loaded. " Photo: J. Norlander

Videos- Southern Madison

WebCams


Raynolds Pass, Looking N

Snowpit Profiles- Southern Madison

 

Select a snowpit on the map to view the profile image

Weather Forecast Southern Madison

Extended Forecast for

20 Miles S Big Sky MT

  • This
    Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 52. Breezy, with a south southwest wind around 23 mph, with gusts as high as 28 mph.

    Slight Chance
    T-storms and
    Breezy

    High: 52 °F

  • Tonight

    Tonight: A slight chance of rain showers, mixing with snow after 10pm, then gradually ending. Some thunder is also possible.  Partly cloudy, with a low around 34. South southwest wind 14 to 21 mph, with gusts as high as 24 mph.  Chance of precipitation is 20%.

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

    Low: 34 °F

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm.  Sunny, with a high near 53. South southwest wind 14 to 21 mph, with gusts as high as 24 mph.

    Sunny then
    Slight Chance
    Showers

    High: 53 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 33. South wind 9 to 18 mph, with gusts as high as 22 mph.

    Mostly Clear

    Low: 33 °F

  • Sunday

    Sunday: A 20 percent chance of showers after noon.  Sunny, with a high near 53. South wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 24 mph.

    Sunny then
    Slight Chance
    Showers

    High: 53 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of snow showers.  Partly cloudy, with a low around 28. Breezy, with a south southwest wind 17 to 22 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 26 mph.

    Slight Chance
    Snow Showers
    and Breezy

    Low: 28 °F

  • Monday

    Monday: A 40 percent chance of snow showers after noon.  Mostly sunny, with a high near 48. West northwest wind 5 to 14 mph, with gusts as high as 20 mph.  Little or no snow accumulation expected.

    Sunny then
    Chance Snow
    Showers

    High: 48 °F

  • Monday
    Night

    Monday Night: A chance of snow.  Mostly cloudy, with a low around 27. West northwest wind 11 to 17 mph, with gusts as high as 24 mph.

    Chance Snow

    Low: 27 °F

  • Tuesday

    Tuesday: Snow likely.  Mostly cloudy, with a high near 38.

    Snow Likely

    High: 38 °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!

04 / 11 / 24  <<  
 
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