Trip Planning for Northern Gallatin

as of 5:00 am
Today2″ | 20-67 W
Dec 3 1″ | 20-58 W
Dec 2 2″ | 15-46 W
9980′     12/04 at 12:00
22.7℉
W - 22mph
Gusts 44mph
8100′     12/04 at 12:00
35℉
Depth
Bottom Line: In the last 4 days the mountains around Bozeman received around 5” of snow with the Big Sky area and southern Madison and southern Gallatin Ranges getting 12-15”. This snow was blown into wind slabs that overlay weaker, faceted snow found at higher elevations (around 9,000’). The snowpack is thin and avalanche risk will likely be confined to wind drifted gullies or bowls. Ice climbers need to be careful of triggering small pockets of drifted snow. Skiers should heed the sage advice, “It’s there’s enough snow to ski, there’s enough snow to avalanche”.
Primary Problem: Wind-Drifted Snow

Past 5 Days

Thu Nov 23

None
Fri Nov 24

None
Fri Dec 1

None
Sun Dec 3

None
Today

None

Relevant Avalanche Activity

Northern Gallatin
Flanders Creek
Two Natural Avalanches in Flanders
Flanders Creek
N
Aspect: E
Coordinates: 45.4402, -110.9310
Caught: 0 ; Buried: 0

From FB message: "Hi! I’d like to report 2 natural slides that were witnessed in the Flanders fork of Hyalite on Friday 11/24 on the east facing aspect of the canyon. Both avalanches came from a single snow field above “Bobo Like” ice climb. These slides happened at approximately 7:45am and 8:15am"


More Avalanche Details

Relevant Photos

Displaying 1 - 10
  • At 9,000 feet there was about an inch of new snow. It was calm at first light, but by mid morning winds were gusty and blowing straight down the gullies. It stripped what little snow there was and did not create an avalanche hazard. However, the 6+" in the gullies are all faceted, and with even a thin wind-load it was easy to get cracking. With snowfall predicted for the next 48 hours and again later this week, we'll need to be on the lookout for pockets or gullies of wind blown snow.

  • We climbed to the Upper Mummy's (west facing) and found relatively little snow at 9,000'. Gullies that usually fill in from wind-loading were not showing much depth. HS was less than 6 inches on the hike up (see pic). Across the valley looking at Elephant and Palace Butte, the bowls were snow covered, but barely (pic). Lower elevation, east facing slopes were mostly mostly dirt.

    The avalanche danger is non-existent on most slopes. The exception would be high elevation gullies that happened to get wind drifts, but these are not widespread.

    Wind was calm and skies were sunny, with an air temp in the teens F.

     

  • We climbed to the Upper Mummy's (west facing) and found relatively little snow at 9,000'. Gullies that usually fill in from wind-loading were not showing much depth. HS was less than 6 inches on the hike up (see pic). Across the valley looking at Elephant and Palace Butte, the bowls were snow covered, but barely (pic). Lower elevation, east facing slopes were mostly mostly dirt.

    The avalanche danger is non-existent on most slopes. The exception would be high elevation gullies that happened to get wind drifts, but these are not widespread.

    Wind was calm and skies were sunny, with an air temp in the teens F.

     

  • Skiers reported triggering an avalanche on the east face of Mt. Blackmore on Sunday. Photo: Anonymous

  • Skiers reported triggering an avalanche on the east face of Mt. Blackmore on Sunday. Photo: Anonymous

  • From obs (10/29): "Went for a skin up to Hyalite Peak yesterday to check out snow conditions. We found about 8-12 inches of new snow sitting on a base at Hyalite Lake. We saw no signs of instability in the area. Small cornices were observed on the Hyalite saddle, and a hit or miss 1 inch wind slab directly below the ridge." Photo: T. Saulnier

  • 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


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

  • This
    Afternoon

    This Afternoon: Partly sunny, with a high near 32. Breezy, with a west northwest wind 16 to 23 mph, with gusts as high as 32 mph.

    Partly Sunny
    and Breezy

    High: 32 °F

  • Tonight

    Tonight: A slight chance of snow between 10pm and 11pm.  Mostly cloudy, with a low around 28. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    Breezy.
    Slight Chance
    Snow then
    Mostly Cloudy

    Low: 28 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. South southwest wind 17 to 21 mph, with gusts as high as 31 mph.

    Mostly Sunny

    High: 39 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 30. Breezy, with a south wind 17 to 23 mph, with gusts as high as 31 mph.

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

    Low: 30 °F

  • Wednesday

    Wednesday: Partly sunny, with a high near 38. Breezy, with a south wind 18 to 22 mph, with gusts as high as 32 mph.

    Partly Sunny
    and Breezy
    then Partly
    Sunny

    High: 38 °F

  • Wednesday
    Night

    Wednesday Night: Snow likely, mainly after 11pm.  Mostly cloudy, with a low around 26. Breezy, with a south wind around 23 mph, with gusts as high as 34 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Snow Likely
    and Breezy

    Low: 26 °F

  • Thursday

    Thursday: Snow likely.  Mostly cloudy, with a high near 29. West wind 14 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Snow Likely

    High: 29 °F

  • Thursday
    Night

    Thursday Night: Snow likely.  Mostly cloudy, with a low around 18. South southwest wind around 14 mph, with gusts as high as 21 mph.

    Snow Likely

    Low: 18 °F

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 20.

    Snow Likely

    High: 20 °F

The Last Word

We travel with a lot of electronics that could interfere with our avalanche transceiver, both as a victim and as a rescuer. Check out our article on Electronic Warfare to learn what to do.

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