Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

MANSON (MASW)

Lat: 47.91694°NLon: 120.12444°WElev: 1972.0ft.

NA

44°F

7°C

Humidity 97%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 08 Dec 10:00 PM PST
Extended Forecast for

18 Miles NW Chelan WA

Flood Watch December 8, 10:39pm until December 11, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 8, 10:39pm until December 11, 04:00pm

    NOW until 4:00pm Thu

    Flood Watch

  • Tonight

    Low: 31 °F

    Rain and
    Windy

  • Tuesday

    Tuesday: A chance of rain between 1pm and 4pm, then rain likely, possibly mixed with snow.  Increasing clouds, with a high near 35. Breezy, with a west wind 13 to 18 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Increasing
    Clouds and
    Breezy then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow, becoming all rain after 1am.  Temperature rising to around 37 by 5am. Southeast wind 6 to 9 mph becoming west after midnight.  Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 30 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain.  High near 40. West wind 13 to 17 mph.  Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 40 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely.  Mostly cloudy, with a low around 35. West wind around 16 mph.  Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 4pm.  Mostly cloudy, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain after 10am.  Partly sunny, with a high near 39.

    High: 39 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Rain. Low around 31. Windy, with a west wind 24 to 29 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A chance of rain between 1pm and 4pm, then rain likely, possibly mixed with snow. Increasing clouds, with a high near 35. Breezy, with a west wind 13 to 18 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain, possibly mixed with snow, becoming all rain after 1am. Temperature rising to around 37 by 5am. Southeast wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Wednesday
Rain. High near 40. West wind 13 to 17 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 35. West wind around 16 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 32.
Friday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 39.
Friday Night
A 20 percent chance of rain before 4am. Mostly cloudy, with a low around 34.
Saturday
A 30 percent chance of rain after 10am. Partly sunny, with a high near 38.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 33.
Sunday
A 50 percent chance of rain. Partly sunny, with a high near 36.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Monday
Rain likely. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NW Chelan WA
 48.02°N 120.31°W (Elev. 1096 ft)
10:06 pm PST Dec 8, 2025
10pm PST Dec 8, 2025-6pm PST Dec 15, 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