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

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Overcast

49°F

9°C

Humidity 96%
Wind Speed SE 4 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 09 Dec 11:53 PM PST
Extended Forecast for

4 Miles WSW West Pasco WA

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

    Overnight: Rain likely before 1am.  Mostly cloudy, with a temperature rising to around 57 by 5am. Southeast wind 6 to 13 mph becoming southwest.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Rain Likely

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 64. Breezy, with a southwest wind around 26 mph, with gusts as high as 46 mph.

    High: 64 °F

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: A 10 percent chance of rain after 4am.  Mostly cloudy, with a low around 57. Breezy, with a southwest wind 24 to 28 mph, with gusts as high as 39 mph.

    Low: 57 °F

    Breezy.
    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 10am.  Mostly cloudy, with a high near 62. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 30 mph.

    High: 62 °F

    Slight Chance
    Rain and
    Breezy then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50. Southwest wind 6 to 8 mph.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain likely before 1am. Mostly cloudy, with a temperature rising to around 57 by 5am. Southeast wind 6 to 13 mph becoming southwest. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, with a high near 64. Breezy, with a southwest wind around 26 mph, with gusts as high as 46 mph.
Wednesday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 57. Breezy, with a southwest wind 24 to 28 mph, with gusts as high as 39 mph.
Thursday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 62. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 30 mph.
Thursday Night
Mostly cloudy, with a low around 50. Southwest wind 6 to 8 mph.
Friday
Mostly cloudy, with a high near 60.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Rain likely. Mostly cloudy, with a high near 53.
Monday Night
Rain likely. Mostly cloudy, with a low around 45.
Tuesday
A chance of rain. Mostly sunny, with a high near 56.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW West Pasco WA
 46.22°N 119.26°W (Elev. 502 ft)
10:45 pm PST Dec 9, 2025
12am PST Dec 10, 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