Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

33°F

1°C

Humidity 100%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 08 Dec 07:06 AM PST
Extended Forecast for

5 Miles NW Mazama WA

  • Today

    Today: Rain, possibly mixed with snow, becoming all rain after 2pm.  High near 42. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow

  • Tonight

    Tonight: Rain, possibly mixed with snow, mainly before 1am.  Low around 33. West wind 9 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Tuesday

    Tuesday: A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then snow after 4pm.  High near 38. West wind 3 to 7 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Chance Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow before 7pm, then rain, possibly mixed with snow.  Low around 31. Light west wind.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 31 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain.  High near 41. West wind around 6 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 41 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain before 10pm, then rain, possibly mixed with snow.  Low around 34. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow

  • Thursday

    Thursday: Rain, possibly mixed with snow, becoming all rain after 1pm.  High near 41. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Rain likely before 7pm, then rain likely, possibly mixed with snow between 7pm and 1am, then rain likely after 1am.  Mostly cloudy, with a low around 36. Chance of precipitation is 70%.

    Low: 36 °F

    Rain/Snow
    Likely

  • Friday

    Friday: A 50 percent chance of rain.  Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

Detailed Forecast

Today
Rain, possibly mixed with snow, becoming all rain after 2pm. High near 42. Light and variable wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain, possibly mixed with snow, mainly before 1am. Low around 33. West wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday
A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then snow after 4pm. High near 38. West wind 3 to 7 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow before 7pm, then rain, possibly mixed with snow. Low around 31. Light west wind. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Rain. High near 41. West wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain before 10pm, then rain, possibly mixed with snow. Low around 34. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
Rain, possibly mixed with snow, becoming all rain after 1pm. High near 41. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Rain likely before 7pm, then rain likely, possibly mixed with snow between 7pm and 1am, then rain likely after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 43.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
A 50 percent chance of rain. Partly sunny, with a high near 43.
Saturday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 41. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Mazama WA
 48.65°N 120.52°W (Elev. 3412 ft)
6:03 am PST Dec 8, 2025
7am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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