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

SAWMILL FLATS (MEFW1)

Lat: 46.9675°NLon: 121.08444°WElev: 3000.0ft.

NA

37°F

3°C

Humidity 100%
Wind Speed WNW 3 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 10 Dec 01:25 AM PST
Extended Forecast for

4 Miles SE Chinook Pass WA

Flood Watch December 10, 01:58am until December 12, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 10, 01:58am until December 12, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Overnight

    Low: 33 °F

    Heavy Rain

  • Wednesday

    Wednesday: Rain. The rain could be heavy at times.  High near 42. Breezy, with a southwest wind 21 to 23 mph, with gusts as high as 47 mph.  Chance of precipitation is 90%. New precipitation amounts between 2 and 3 inches possible.

    High: 42 °F

    Heavy Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Rain.  Low around 36. Breezy, with a west wind around 22 mph, with gusts as high as 45 mph.  Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 36 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain.  High near 40. West wind 14 to 21 mph, with gusts as high as 40 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 36. West wind around 8 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 10am.  Partly sunny, with a high near 41. Chance of precipitation is 60%.

    High: 41 °F

    Rain Likely

  • Friday Night

    Friday Night: A 30 percent chance of rain before 10pm.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 10 percent chance of rain after 4pm.  Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny
    then Slight
    Chance Rain

Detailed Forecast

Overnight
Rain. The rain could be heavy at times. Low around 33. Southwest wind around 18 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Rain. The rain could be heavy at times. High near 42. Breezy, with a southwest wind 21 to 23 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New precipitation amounts between 2 and 3 inches possible.
Wednesday Night
Rain. Low around 36. Breezy, with a west wind around 22 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Rain. High near 40. West wind 14 to 21 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 36. West wind around 8 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely, mainly before 10am. Partly sunny, with a high near 41. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 33.
Saturday
A 10 percent chance of rain after 4pm. Mostly sunny, with a high near 45.
Saturday Night
Rain, mainly after 4am. Low around 34. Chance of precipitation is 80%.
Sunday
Rain, possibly mixed with snow. Mostly cloudy, with a high near 38.
Sunday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 34.
Monday
Rain, possibly mixed with snow. Mostly cloudy, with a high near 40.
Monday Night
Rain and snow. Mostly cloudy, with a low around 32.
Tuesday
Snow. Mostly cloudy, with a high near 34.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Chinook Pass WA
 46.82°N 121.46°W (Elev. 5157 ft)
1:31 am PST Dec 10, 2025
1am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database