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

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

NA

32°F

0°C

Humidity 97%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 10 Dec 12:01 AM PST
Extended Forecast for

Trinity WA

Flood Watch December 10, 04:44am until December 12, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 10, 04:44am until December 12, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Overnight

    Low: 39 °F

    Heavy Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: Rain. The rain could be heavy at times.  Widespread dense fog, mainly between 8am and 9am. High near 47. West wind 3 to 8 mph.  Chance of precipitation is 100%. New precipitation amounts between 3 and 4 inches possible.

    High: 47 °F

    Heavy Rain
    and Dense Fog

  • Wednesday Night

    Wednesday Night: Rain before 11pm, then rain and snow. The rain could be heavy at times.  Low around 35. West wind around 10 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 35 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow.  High near 42. West wind around 9 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Rain likely, possibly mixed with snow.  Mostly cloudy, with a low around 34. West wind around 7 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely

  • Friday

    Friday: Rain likely, possibly mixed with snow before 10am, then rain between 10am and 1pm, then rain, possibly mixed with snow after 1pm.  High near 45. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow

  • Friday Night

    Friday Night: Rain likely, possibly mixed with snow, becoming all rain after 7pm.  Mostly cloudy, with a low around 36. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 4pm.  Partly sunny, with a high near 45.

    High: 45 °F

    Chance Rain

Detailed Forecast

Overnight
Rain. The rain could be heavy at times. Patchy fog. Steady temperature around 39. South wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain. The rain could be heavy at times. Widespread dense fog, mainly between 8am and 9am. High near 47. West wind 3 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between 3 and 4 inches possible.
Wednesday Night
Rain before 11pm, then rain and snow. The rain could be heavy at times. Low around 35. West wind around 10 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Thursday
Rain and snow. High near 42. West wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 34. West wind around 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Rain likely, possibly mixed with snow before 10am, then rain between 10am and 1pm, then rain, possibly mixed with snow after 1pm. High near 45. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday Night
Rain likely, possibly mixed with snow, becoming all rain after 7pm. Mostly cloudy, with a low around 36. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 45.
Saturday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 44. Chance of precipitation is 70%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Monday
Rain. High near 44. Chance of precipitation is 90%.
Monday Night
Rain, possibly mixed with snow. Low around 33. Chance of precipitation is 90%.
Tuesday
Rain and snow. High near 40. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
Trinity WA
 48.08°N 120.84°W (Elev. 3346 ft)
4:31 am PST Dec 10, 2025
4am 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