Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

37°F

3°C

Humidity 64%
Wind Speed N 0 MPH
Barometer 30.45 in (1031.16 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 30 Dec 02:35 PM PST
Extended Forecast for

West Pasco WA

Air Stagnation Advisory December 30, 02:58pm until January 1, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory December 30, 02:58pm until January 1, 12:00pm

    NOW until 12:00pm Thu

    Air Stagnation Advisory

  • This Afternoon

    High: 38 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 26. Calm wind.

    Low: 26 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Patchy freezing fog before 10am. Partly sunny, with a high near 34. Calm wind.

    High: 34 °F

    Patchy
    Freezing Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy freezing fog after 4am. Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Clear
    then Patchy
    Freezing Fog

  • New Year's Day

    New Year's Day: A 30 percent chance of rain after 4pm.  Patchy freezing fog before 10am. Mostly cloudy, with a high near 33. Calm wind.

    High: 33 °F

    Patchy
    Freezing Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain, snow, and freezing rain before 10pm, then a chance of freezing rain between 10pm and 1am, then a chance of rain or freezing rain after 1am.  Patchy fog after 1am.  Otherwise, cloudy, with a low around 29. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 29 °F

    Chance Wintry
    Mix and
    Patchy Fog

  • Friday

    Friday: A chance of rain or freezing rain before 10am, then a slight chance of rain.  Patchy fog before 10am.  Otherwise, cloudy, with a high near 38. Chance of precipitation is 40%.

    High: 38 °F

    Chance
    Rain/Freezing
    Rain and
    Patchy Fog

  • Friday Night

    Friday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 38. Light northwest wind.
Tonight
Increasing clouds, with a low around 26. Calm wind.
Wednesday
Patchy freezing fog before 10am. Partly sunny, with a high near 34. Calm wind.
Wednesday Night
Patchy freezing fog after 4am. Partly cloudy, with a low around 24. Calm wind.
New Year's Day
A 30 percent chance of rain after 4pm. Patchy freezing fog before 10am. Mostly cloudy, with a high near 33. Calm wind.
Thursday Night
A chance of rain, snow, and freezing rain before 10pm, then a chance of freezing rain between 10pm and 1am, then a chance of rain or freezing rain after 1am. Patchy fog after 1am. Otherwise, cloudy, with a low around 29. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday
A chance of rain or freezing rain before 10am, then a slight chance of rain. Patchy fog before 10am. Otherwise, cloudy, with a high near 38. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 32.
Saturday
A 30 percent chance of rain, mainly before 10am. Partly sunny, with a high near 46.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 34.
Monday
A slight chance of rain. Mostly cloudy, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
West Pasco WA
 46.25°N 119.2°W (Elev. 381 ft)
2:41 pm PST Dec 30, 2025
2pm PST Dec 30, 2025-6pm PST Jan 5, 2026
 
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