Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

South Big Horn County Airport (KGEY)

Lat: 44.5174°NLon: 108.0752°WElev: 3934.0ft.

Clear

34°F

1°C

Humidity 69%
Wind Speed SE 3 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 10 Dec 01:35 AM MST
Extended Forecast for

9 Miles ESE Shell WY

Winter Weather Advisory December 10, 01:51am until December 10, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 10, 01:51am until December 10, 05:00pm

    NOW until 5:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 25 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: Rain and snow likely before 2pm, then a slight chance of rain between 2pm and 3pm.  Mostly cloudy, with a high near 40. East southeast wind 5 to 10 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Snow Likely
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36. East wind around 9 mph becoming north after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain and snow, mainly after 5pm.  Snow level 7200 feet. Mostly cloudy, with a high near 42. West wind 7 to 10 mph.  Chance of precipitation is 30%.

    High: 42 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before 7pm, then a chance of snow.  Mostly cloudy, with a low around 29. West southwest wind 3 to 7 mph.  Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    Low: 29 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: A 30 percent chance of snow before 11am.  Mostly cloudy, with a high near 39. Southwest wind around 6 mph.

    High: 39 °F

    Chance Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. Southwest wind 6 to 9 mph becoming northwest after midnight.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Overnight
A 10 percent chance of snow after 5am. Cloudy, with a low around 25. North wind 5 to 7 mph becoming southeast.
Wednesday
Rain and snow likely before 2pm, then a slight chance of rain between 2pm and 3pm. Mostly cloudy, with a high near 40. East southeast wind 5 to 10 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday Night
Mostly cloudy, with a low around 36. East wind around 9 mph becoming north after midnight.
Thursday
A chance of rain and snow, mainly after 5pm. Snow level 7200 feet. Mostly cloudy, with a high near 42. West wind 7 to 10 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 29. West southwest wind 3 to 7 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Friday
A 30 percent chance of snow before 11am. Mostly cloudy, with a high near 39. Southwest wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 30. Southwest wind 6 to 9 mph becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ESE Shell WY
 44.48°N 107.62°W (Elev. 6946 ft)
1:33 am MST Dec 10, 2025
1am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database