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

Stevens Pass - Tye Mill (STS54)

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

NA

40°F

4°C

Humidity NA
Wind Speed NW 5 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Wind Chill36°F (2°C)
Last update NA
Extended Forecast for

15 Miles WSW Trinity WA

Flood Watch December 10, 04:22am until December 12, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 10, 04:22am until December 12, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Overnight

    Low: 38 °F

    Heavy Rain

  • Wednesday

    Wednesday: Rain. The rain could be heavy at times.  High near 39. West wind around 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New precipitation amounts in excess of 4 inches possible.

    High: 39 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Rain before 11pm, then rain and snow. The rain and snow could be heavy at times.  Low around 28. Breezy, with a west wind around 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Snow. The snow could be heavy at times.  High near 32. West wind 10 to 13 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 32 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: Snow.  Low around 30. Northwest wind around 9 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Snow

  • Friday

    Friday: Rain and snow.  High near 34. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Rain/Snow

  • Friday Night

    Friday Night: Rain and snow likely before 1am, then a chance of rain.  Mostly cloudy, with a low around 32. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: A chance of rain before 7am, then a chance of rain and snow between 7am and 1pm, then a chance of rain after 1pm.  Mostly cloudy, with a high near 35. Chance of precipitation is 40%.

    High: 35 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Rain. The rain could be heavy at times. Steady temperature around 38. West wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain. The rain could be heavy at times. High near 39. West wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts in excess of 4 inches possible.
Wednesday Night
Rain before 11pm, then rain and snow. The rain and snow could be heavy at times. Low around 28. Breezy, with a west wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow. The snow could be heavy at times. High near 32. West wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
Snow. Low around 30. Northwest wind around 9 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday
Rain and snow. High near 34. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday Night
Rain and snow likely before 1am, then a chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
A chance of rain before 7am, then a chance of rain and snow between 7am and 1pm, then a chance of rain after 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.
Saturday Night
Rain likely before 1am, then rain, possibly mixed with snow. Low around 31. Chance of precipitation is 80%.
Sunday
Rain and snow before 10am, then snow between 10am and 4pm, then rain and snow after 4pm. High near 32. Chance of precipitation is 80%.
Sunday Night
Rain and snow. Low around 31. Chance of precipitation is 80%.
Monday
Rain and snow. The rain could be heavy at times. High near 33. Chance of precipitation is 90%.
Monday Night
Rain and snow. Low around 28. Chance of precipitation is 100%.
Tuesday
Snow. The snow could be heavy at times. High near 29. Chance of precipitation is 90%.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles WSW Trinity WA
 47.97°N 121.16°W (Elev. 5226 ft)
2:58 am PST Dec 10, 2025
4am PST Dec 10, 2025-6pm PST Dec 16, 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