National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

Stevens Pass - Tye Mill (STS54)

Lat: 47.73163°NLon: 121.0853°WElev: 5180.0ft.

NA

32°F

0°C

Humidity NA
Wind Speed WNW 14 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Wind Chill22°F (-6°C)
Last update NA
Extended Forecast for

12 Miles SW Trinity WA

Flood Watch December 8, 07:00am until December 9, 04:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Snow, mainly before 4am. Low around 30. Breezy, with a west wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.

    Low: 30 °F

    Snow and
    Breezy

  • Monday

    Monday: Rain, possibly mixed with snow, becoming all rain after 4pm. The rain and snow could be heavy at times. High near 35. Southwest wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 35 °F

    Rain/Snow

  • Monday Night

    Monday Night: Snow, possibly mixed with rain, becoming all snow after midnight. The rain and snow could be heavy at times. Low around 27. Breezy, with a west wind around 24 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 27 °F

    Breezy.
    Rain/Snow
    then Heavy
    Snow

  • Tuesday

    Tuesday: Snow. High near 30. Breezy, with a west wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 30 °F

    Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times. Low around 28. West wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 28 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times. High near 33. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    High: 33 °F

    Heavy Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Low around 29. Chance of precipitation is 80%. New snow accumulation of 8 to 12 inches possible.

    Low: 29 °F

    Heavy Snow

  • Thursday

    Thursday: Snow likely. The snow could be heavy at times. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.

    High: 32 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: Snow likely before 10pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.

    Low: 31 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
Snow, mainly before 4am. Low around 30. Breezy, with a west wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.
Monday
Rain, possibly mixed with snow, becoming all rain after 4pm. The rain and snow could be heavy at times. High near 35. Southwest wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday Night
Snow, possibly mixed with rain, becoming all snow after midnight. The rain and snow could be heavy at times. Low around 27. Breezy, with a west wind around 24 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Tuesday
Snow. High near 30. Breezy, with a west wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 28. West wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 33. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 29. Chance of precipitation is 80%. New snow accumulation of 8 to 12 inches possible.
Thursday
Snow likely. The snow could be heavy at times. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.
Thursday Night
Snow likely before 10pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.
Friday
Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Saturday
Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.
Saturday Night
Snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 70%.
Sunday
Snow likely. Mostly cloudy, with a high near 31. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SW Trinity WA
 47.95°N 121.02°W (Elev. 5689 ft)
Last Update:
8:43 pm PST Dec 7, 2025
Forecast Valid:
9pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation