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

CORVALLIS (FNWO3)

Lat: 44.41833°NLon: 123.32528°WElev: 308.0ft.

NA

57°F

14°C

Humidity 94%
Wind Speed SSW 9 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 09 Dec 08:45 PM PST
Extended Forecast for

4 Miles SW Greenberry OR

Flood Watch December 9, 09:40pm until December 11, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 9, 09:40pm until December 11, 04:00pm

    NOW until 4:00pm Thu

    Flood Watch

  • Tonight

    Low: 53 °F

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 60. South southwest wind around 8 mph.

    High: 60 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely.  Mostly cloudy, with a low around 50. South wind around 6 mph.  Chance of precipitation is 60%.

    Low: 50 °F

    Rain Likely

  • Thursday

    Thursday: A 50 percent chance of rain, mainly before 4pm.  Mostly cloudy, with a high near 59. South wind 3 to 5 mph.

    High: 59 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain after 4pm.  Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Rain. Low around 53. South southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 60. South southwest wind around 8 mph.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 50. South wind around 6 mph. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 59. South wind 3 to 5 mph.
Thursday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 46. Calm wind.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 42.
Saturday
A slight chance of rain after 4pm. Partly sunny, with a high near 56.
Saturday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Mostly cloudy, with a high near 54.
Sunday Night
Rain likely. Mostly cloudy, with a low around 43.
Monday
Rain. Cloudy, with a high near 57.
Monday Night
Rain. Mostly cloudy, with a low around 45.
Tuesday
Rain likely. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Greenberry OR
 44.42°N 123.33°W (Elev. 400 ft)
8:41 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