Trip Planning for Southern Gallatin

as of 5:00 am
Today1″ | NA
Dec 8 5″ | NA
Dec 7 2″ | NA
9460′     at
Weather station is Offline
9000′     12/09 at 23:00
9℉
28″ Depth
Primary Problem: Persistent Weak Layer
Bottom Line: Unstable snow is widespread across our advisory area. Weak snow at the ground that fell in October and early November has been overloaded by this week’s new snow. Any slope that held snow before last weekend is suspect. If you ride on or beneath steep slopes today, expect to trigger avalanches. Avoid the hazard by sticking to lower angled slopes today and avoiding crossing runout zones beneath steeper slopes.

Past 5 Days

Sun Dec 3

None
Mon Dec 4

None
Thu Dec 7

Considerable
Fri Dec 8

Considerable
Today

Considerable

Relevant Avalanche Activity

Widespread cracking and collapsing
Coordinates: 45.2952, -111.4100
Caught: 0 ; Buried: 0

Cracking and collapsing reported across the advisory area in the Bridger Range, Big Sky area, near West Yellowstone and Island Park, and near Cooke City.


More Avalanche Details

Relevant Photos

Displaying 1 - 5
  • From obs: "Dug into the hillside right before going up the creek. Snow pack was 75 cm deep consisting of three layers. Bottom 35cm is obviously faceted, grain size is around 2mm. Very thin ice crust at around 35cm. Upper 35 cm of snow is brand new snow from this current storm, precipitation particles, low density, with minor wind effect. Performed a quick Compression Test and the ice crust layer failed on the second tap." Photo: S. Gralla

  • From IG: “Pine creek today, some small wind slabs and a full depth wet slide off black mountain”

  • From IG: “Pine creek today (10/21), some small wind slabs and a full depth wet slide off black mountain”

  • From obs. "Was out alpine climbing today and observed the north face of Blackmore had slid already."

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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: Scattered snow showers, mainly after 1am.  Mostly cloudy, with a low around 10. South southeast wind around 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%. Total nighttime snow accumulation of less than one inch possible.

    Scattered
    Snow Showers

    Low: 10 °F

  • Sunday

    Sunday: Snow showers likely, mainly before 10am.  Mostly cloudy, with a high near 26. South southeast wind 11 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Snow Showers
    Likely then
    Scattered
    Snow Showers

    High: 26 °F

  • Sunday
    Night

    Sunday Night: Scattered snow showers.  Mostly cloudy, with a low around 18. Southeast wind 8 to 11 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Scattered
    Snow Showers

    Low: 18 °F

  • Monday

    Monday: Scattered snow showers.  Mostly cloudy, with a high near 29. South wind around 6 mph becoming north in the afternoon.  Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Scattered
    Snow Showers

    High: 29 °F

  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 14. Northeast wind around 5 mph becoming calm  in the evening.

    Mostly Cloudy

    Low: 14 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31. Light and variable wind becoming north northwest around 6 mph in the afternoon.

    Mostly Sunny

    High: 31 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 11. South wind around 6 mph.

    Mostly Clear

    Low: 11 °F

  • Wednesday

    Wednesday: Sunny, with a high near 34.

    Sunny

    High: 34 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 14.

    Mostly Clear

    Low: 14 °F

The Last Word

Listen to GNFAC Forecaster Dave Zinn on the Hoary Marmot Podcast for some extracurricular avalanche talk (link to episode).

12 / 8 / 23  <<  
 
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