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 >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

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

Overcast

30°F

-1°C

Humidity 80%
Wind Speed SE 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 10 Dec 03:35 AM MST
Extended Forecast for

5 Miles WSW Shell WY

  • Overnight

    Overnight: A 10 percent chance of snow after 5am.  Cloudy, with a low around 31. Southeast wind around 9 mph.

    Low: 31 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: A chance of rain and snow before 11am, then a chance of rain between 11am and 2pm.  Mostly cloudy, with a high near 47. East southeast wind 8 to 13 mph becoming light southeast  in the afternoon.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 47 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36. East southeast wind 5 to 9 mph.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after 4pm.  Partly sunny, with a high near 51. Southeast wind 5 to 7 mph becoming calm  in the morning.

    High: 51 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain before 11pm, then a chance of rain and snow.  Mostly cloudy, with a low around 28. Northwest wind around 6 mph becoming light and variable  after midnight.  Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of rain and snow before 11am.  Partly sunny, with a high near 44. Calm wind.  Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26. East southeast wind around 5 mph becoming calm  after midnight.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 10 percent chance of snow after 5am. Cloudy, with a low around 31. Southeast wind around 9 mph.
Wednesday
A chance of rain and snow before 11am, then a chance of rain between 11am and 2pm. Mostly cloudy, with a high near 47. East southeast wind 8 to 13 mph becoming light southeast in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, with a low around 36. East southeast wind 5 to 9 mph.
Thursday
A 20 percent chance of rain after 4pm. Partly sunny, with a high near 51. Southeast wind 5 to 7 mph becoming calm in the morning.
Thursday Night
A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 28. Northwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Friday
A slight chance of rain and snow before 11am. Partly sunny, with a high near 44. Calm wind. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 26. East southeast wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Shell WY
 44.48°N 107.89°W (Elev. 4199 ft)
2:48 am MST Dec 10, 2025
3am 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