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

Ephrata, Ephrata Municipal Airport (KEPH)

Lat: 47.3075°NLon: 119.51583°WElev: 1276.0ft.

light rain,mist

41°F

5°C

Humidity 93%
Wind Speed NNW 4 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Wind Chill38°F (3°C)
Last update 09 Dec 09:00 PM PST
Extended Forecast for

5 Miles WSW Coulee City WA

Wind Advisory December 10, 06:00am until December 11, 07:00am
Click here for hazard details and duration
Wind Advisory
  • Tonight

    Tonight: Rain, mainly before 1am.  Temperature rising to around 44 by 2am. South wind 6 to 10 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. Southwest wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 46. Breezy, with a southwest wind 14 to 20 mph, with gusts as high as 32 mph.

    Low: 46 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: A 30 percent chance of rain before 10am.  Partly sunny, with a high near 55. West wind around 10 mph.

    High: 55 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. Northwest wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain, mainly before 1am. Temperature rising to around 44 by 2am. South wind 6 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Partly sunny, with a high near 59. Southwest wind 7 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 14 to 20 mph, with gusts as high as 32 mph.
Thursday
A 30 percent chance of rain before 10am. Partly sunny, with a high near 55. West wind around 10 mph.
Thursday Night
Mostly cloudy, with a low around 41. Northwest wind around 6 mph.
Friday
Mostly cloudy, with a high near 55.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly cloudy, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
A slight chance of rain between 10am and 4pm. Partly sunny, with a high near 50. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 37.
Monday
Rain likely. Mostly cloudy, with a high near 48. Chance of precipitation is 60%.
Monday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Coulee City WA
 47.58°N 119.4°W (Elev. 1417 ft)
5:48 pm PST Dec 9, 2025
9pm PST Dec 9, 2025-6pm PST 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