Trip Planning for Island Park

as of 5:00 am
Today0″ | N
Jan 14 1″ | N
Jan 13 0″ | NA
9885′     01/15 at 15:00
27.0℉
N - 0mph
Gusts 0 mph
8750′     01/15 at 15:07
52.4″ Depth
0.5″New
7710′     01/15 at 15:00
23℉
42″ Depth
Primary Problem: Persistent Slab
Bottom Line: In Cooke City and Island Park, triggering a persistent slab avalanche that breaks 4-6 feet deep is possible. Lean on careful terrain evaluation to reduce the chances of triggering a slide and the consequences if one occurs. Steeper terrain, wind-loaded slopes and terrain with variation in depth are more likely to avalanche. Larger slopes with terrain traps enhance the consequences of getting caught. To minimize uncertainty, ski and ride in terrain less than 30 degrees.

Past 5 Days

Sat Jan 11

Considerable
Sun Jan 12

Considerable
Mon Jan 13

Moderate
Tue Jan 14

Moderate
Today

Moderate

Relevant Avalanche Activity

Island Park
Mt Jefferson Bowl
Wind Slab Avalanche Jefferson Bowl
Incident details include images
Mt Jefferson Bowl
N-R2-D2
Elevation: 9,500
Aspect: NE
Coordinates: 44.5591, -111.4830
Caught: 0 ; Buried: 0

Almost constant Whumphing at higher elevation. I saw a couple of days old avalanche on a wind-loaded east northeast facing slope. This area in known as Yahoo.


More Avalanche Details

Relevant Photos

Displaying 1 - 37

Snowpit Profiles- Island Park

 

Select a snowpit on the map to view the profile image

Weather Forecast Island Park

Extended Forecast for

10 Miles ESE Lakeview MT

  • Tonight

    Tonight: Mostly clear, with a low around 13. South wind around 7 mph.

    Low: 13 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 23. South wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 23 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 11pm.  Mostly cloudy, with a low around 11. South wind 8 to 13 mph, with gusts as high as 21 mph.  New snow accumulation of less than a half inch possible.

    Low: 11 °F

    Chance Snow

  • Friday

    Friday: Snow likely.  Patchy blowing snow after 2pm. Mostly cloudy, with a high near 19. Wind chill values as low as -10. West southwest wind 6 to 11 mph becoming north northwest 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 19 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow.  Partly cloudy, with a low around -5. North wind 15 to 18 mph, with gusts as high as 25 mph.

    Low: -5 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow before 11am.  Mostly sunny, with a high near 7. North wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 7 °F

    Slight Chance
    Snow then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -7. West wind 7 to 9 mph becoming north after midnight.

    Low: -7 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of snow after 11am.  Partly sunny and cold, with a high near 5. North northwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 5 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A slight chance of snow before 11pm.  Partly cloudy, with a low around -16.

    Low: -16 °F

    Slight Chance
    Snow then
    Mostly Clear

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 / 14 / 25  <<  
 
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