Trip Planning for Southern Gallatin

as of 5:00 am
Today0″ | 5-25 N
Jan 13 1″ | 5-21 NW
Jan 12 0″ | 10-23 NW
9460′     01/14 at 22:00
20.3℉
NW - 15mph
Gusts 27 mph
9000′     01/14 at 21:00
18℉
52″ Depth
Primary Problem: Persistent Slab
Bottom Line: The primary concern is persistent slab avalanches failing on sugary weak layers buried deep in the snowpack. In the Cooke City areas, these could break 4-6 feet deep, whereas near West Yellowstone, they are likely to break up to 3 feet deep. Avalanches, collapsing and shooting cracks indicate instability without further snowpack assessment. Seek out great powder turns and ride in low-angle terrain, avoiding slopes steeper than 30 degrees, especially those with recent drifts.

Past 5 Days

Fri Jan 10

Moderate
Sat Jan 11

Considerable
Sun Jan 12

Considerable
Mon Jan 13

Considerable
Today

Considerable

Relevant Avalanche Activity

Southern Gallatin
Specimen Creek
Remotely Triggered Avalanche in Specimen Creek
Incident details include images
Specimen Creek
Coordinates: 45.0265, -111.0480
Caught: 0 ; Buried: 0

Many ridgelines had been scoured down to the grass from yesterday's winds. HS was around 100cm around 8k feet and significantly shallower at lower elevations. New snow totals from the past couple of days was around 20-30cm. We experienced a remarkable number of thunderous collapses throughout the day (I lost count), one of which triggered an avalanche into Specimen Creek while we were in the flats. 

 


More Avalanche Details
Southern Gallatin
Cabin Creek
Remote trigger cabin creek
Incident details include images
Cabin Creek
SS-AMc-R3-D2-O
Coordinates: 44.8949, -111.2280
Caught: 0 ; Buried: 0

Dug a small test pit. Unprofessional observation ectp 10 on the persistent weak layer seen across the advisory area. On our way out near the cabin I cut a line close to a creek to see if I could trigger something. 


More Avalanche Details

Relevant Photos

Displaying 1 - 19

WebCams


Electric Peak

Roosevelt Arch

Snowpit Profiles- Southern Gallatin

 

Select a snowpit on the map to view the profile image

Weather Stations- Southern Gallatin

Weather Forecast Southern Gallatin

Extended Forecast for

17 Miles SE Big Sky MT

  • Tonight

    Tonight: Partly cloudy, with a low around 13. South southeast wind around 6 mph.

    Low: 13 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 30. South southeast wind 6 to 9 mph.

    High: 30 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 16. South wind 8 to 10 mph.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 30. South wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers after 11pm.  Mostly cloudy, with a low around 14. South southwest wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 14 °F

    Chance Snow
    Showers

  • Friday

    Friday: Snow showers.  High near 20. North northwest wind 6 to 10 mph.  Chance of precipitation is 80%.

    High: 20 °F

    Snow Showers

  • Friday Night

    Friday Night: A 30 percent chance of snow showers.  Mostly cloudy, with a low around -6. North northwest wind 6 to 8 mph.

    Low: -6 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A 20 percent chance of snow showers.  Partly sunny and cold, with a high near 6.

    High: 6 °F

    Slight Chance
    Snow Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -11.

    Low: -11 °F

    Partly Cloudy

The Last Word

Thank you for sharing observations. Please let us know about avalanches, weather or signs of instability via the form on our website, or you can email us at mtavalanche@gmail.com, or call the office phone at 406-587-6984.

 

01 / 13 / 25  <<  
 
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