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

37°F

3°C

Humidity 64%
Wind Speed NW 11 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 09 Dec 07:35 PM MST
Extended Forecast for

12 Miles E Shell WY

Winter Weather Advisory December 9, 08:00pm until December 10, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 9, 08:00pm until December 10, 05:00pm

    NOW until 5:00pm Wed

    Winter Weather Advisory

  • Tonight

    Low: 18 °F

    Mostly Cloudy
    and Blustery
    then
    Scattered
    Snow Showers

  • Wednesday

    Wednesday: Snow showers likely before 1pm, then scattered rain and snow showers. The snow could be heavy at times.  Cloudy, with a high near 38. West southwest wind 9 to 13 mph.  Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.

    High: 38 °F

    Heavy Snow
    then
    Scattered
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow showers.  Snow level 8300 feet lowering to 7800 feet after midnight . Mostly cloudy, with a low around 33. West southwest wind around 10 mph.  Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: A 30 percent chance of snow showers after 11am.  Mostly cloudy, with a high near 40. West southwest wind around 11 mph.

    High: 40 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of snow showers.  Mostly cloudy, with a low around 24. West wind 6 to 9 mph.  New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 40 percent chance of snow showers, mainly before 11am.  Partly sunny, with a high near 35. West southwest wind 6 to 9 mph.

    High: 35 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers after 11pm.  Mostly cloudy, with a low around 21. West wind around 9 mph.

    Low: 21 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: A 20 percent chance of snow showers before 11am.  Partly sunny, with a high near 31.

    High: 31 °F

    Slight Chance
    Snow Showers
    then Mostly
    Sunny

Detailed Forecast

Tonight
Scattered snow showers, mainly after 3am. Mostly cloudy, with a low around 18. Blustery, with a northwest wind 7 to 16 mph becoming south southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of around an inch possible.
Wednesday
Snow showers likely before 1pm, then scattered rain and snow showers. The snow could be heavy at times. Cloudy, with a high near 38. West southwest wind 9 to 13 mph. Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.
Wednesday Night
A slight chance of rain and snow showers. Snow level 8300 feet lowering to 7800 feet after midnight . Mostly cloudy, with a low around 33. West southwest wind around 10 mph. Chance of precipitation is 20%.
Thursday
A 30 percent chance of snow showers after 11am. Mostly cloudy, with a high near 40. West southwest wind around 11 mph.
Thursday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 24. West wind 6 to 9 mph. New snow accumulation of 1 to 2 inches possible.
Friday
A 40 percent chance of snow showers, mainly before 11am. Partly sunny, with a high near 35. West southwest wind 6 to 9 mph.
Friday Night
A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 21. West wind around 9 mph.
Saturday
A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 31.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 38.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles E Shell WY
 44.55°N 107.53°W (Elev. 7710 ft)
7:47 pm MST Dec 9, 2025
8pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database