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 NNW 1 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 08 Dec 09:06 AM PST
Extended Forecast for

4 Miles NE Mazama WA

  • Today

    Today: Rain, possibly mixed with snow, becoming all rain after 3pm.  High near 36. Southwest wind 6 to 8 mph.  Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow, becoming all snow after midnight, then gradually ending. The snow could be heavy at times.  Low around 30. West wind 11 to 14 mph, with gusts as high as 33 mph.  Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 30 °F

    Rain/Snow
    then Heavy
    Snow

  • Tuesday

    Tuesday: Snow, mainly after 4pm.  High near 33. West wind 6 to 11 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Chance Snow
    then Snow

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times.  Low around 29. West wind around 5 mph.  Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    Low: 29 °F

    Heavy Snow

  • Wednesday

    Wednesday: Rain and snow, becoming all snow after 1pm.  High near 36. West wind around 9 mph, with gusts as high as 23 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow likely.  Mostly cloudy, with a low around 31. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 31 °F

    Snow Likely

  • Thursday

    Thursday: Snow likely before 1pm, then rain and snow likely.  Mostly cloudy, with a high near 36. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 36 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Rain and snow likely, mainly before 10pm.  Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain/Snow
    Likely

  • Friday

    Friday: A chance of rain and snow before 1pm, then a chance of rain.  Mostly cloudy, with a high near 38. Chance of precipitation is 40%.

    High: 38 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Rain, possibly mixed with snow, becoming all rain after 3pm. High near 36. Southwest wind 6 to 8 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Rain and snow, becoming all snow after midnight, then gradually ending. The snow could be heavy at times. Low around 30. West wind 11 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Tuesday
Snow, mainly after 4pm. High near 33. West wind 6 to 11 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 29. West wind around 5 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Wednesday
Rain and snow, becoming all snow after 1pm. High near 36. West wind around 9 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow likely before 1pm, then rain and snow likely. Mostly cloudy, with a high near 36. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Thursday Night
Rain and snow likely, mainly before 10pm. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Friday
A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.
Friday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 40%.
Saturday Night
Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Sunday
Snow likely. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Mazama WA
 48.65°N 120.36°W (Elev. 4567 ft)
9:23 am PST Dec 8, 2025
10am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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Hourly Weather Forecast

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