Trip Planning for Lionhead Range

as of 5:00 am
Today1″ | NA
Feb 10 0″ | 10-32 W
Feb 9 2″ | 15-35 W
9420′     02/11 at 3:00
-9.1℉
W - 0mph
Gusts 0 mph
7750′     02/11 at 04:00
0℉
56″ Depth
Primary Problem: Wind Slab
Bottom Line: Human-triggered avalanches are likely on wind-loaded slopes today. Recent snow was drifted into thicker and stiffer slabs which have been easy to trigger, and will remain reactive for at least another day. Avoid slopes steeper than 30 degrees that have recent wind-loading. Seek out slopes sheltered from wind, and consider smaller slopes with clean runouts that minimize the potential size and consequences of a slide. Carefully evaluate the snowpack for recent wind-loading and buried weak layers before getting onto steeper slopes.

Past 5 Days

Thu Feb 6

Considerable
Fri Feb 7

Considerable
Sat Feb 8

Considerable
Sun Feb 9

Considerable
Mon Feb 10

Considerable

Relevant Avalanche Activity

Lionhead Range
LIONHEAD AREA
Small rider triggered Avalanche Lionhead
Incident details include images
LIONHEAD AREA
SS-AM-R1-D1
Aspect: S
Coordinates: 44.7292, -111.3230
Caught: 0 ; Buried: 0

We saw this today after it happened. Looked like a snowmobile triggered it. I believe it is mostly south facing. Thanks. 


More Avalanche Details
Lionhead Range
Lionhead Ridge
Natural and Snowmobile Triggered Avalanches at Lionhead
Lionhead Ridge
SS
Coordinates: 44.7145, -111.3180
Caught: 0 ; Buried: 0

Plenty of wind slabs ranging in size on Lionhead ridge and on surrounding slopes. Noticed a few natural slides on the way in, a few more on the way out that were rider triggered. Snow was quite wet by this afternoon @8500’. 


More Avalanche Details

Relevant Photos

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WebCams


Rendezvous Ski Trail, W. Yellowstone

Snowpit Profiles- Lionhead Range

 

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Weather Forecast Lionhead Range

Extended Forecast for

10 Miles WNW West Yellowstone MT

Cold Weather Advisory February 11, 06:00pm until February 12, 11:00amCold Weather Advisory February 11, 04:53am until February 11, 11:00amClick here for hazard details and duration Cold Weather Advisory ...
  •   Cold Weather Advisory February 11, 04:53am until February 11, 11:00am

    NOW until 11:00am Tue

    Cold Weather Advisory

  • Today

    High: 3 °F

    Cold

  • Tonight

    Tonight: Mostly clear, with a low around -18. Wind chill values as low as -35. North wind 8 to 11 mph.

    Low: -18 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and cold, with a high near 1. Wind chill values as low as -35. North wind 5 to 10 mph becoming south in the morning.

    High: 1 °F

    Cold

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -12. Wind chill values as low as -30. South southwest wind 11 to 14 mph, with gusts as high as 20 mph.

    Low: -12 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 11am.  Patchy blowing snow after 8am. Partly sunny, with a high near 13. South wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 13 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Thursday Night

    Thursday Night: Snow.  Low around 11. South southwest wind 14 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 11 °F

    Snow

  • Friday

    Friday: Snow.  High near 22. South southwest wind around 11 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 22 °F

    Snow

  • Friday Night

    Friday Night: Snow.  Mostly cloudy, with a low around 13. Southwest wind 9 to 11 mph.

    Low: 13 °F

    Snow

The Last Word

02 / 9 / 25  <<  
 
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