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

Stevens Pass - Tye Mill (STS54)

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

NA

30°F

-1°C

Humidity NA
Wind Speed W 15 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Wind Chill19°F (-7°C)
Last update NA
Extended Forecast for

6 Miles SSW Trinity WA

Flood Watch December 9, 02:23am until December 11, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 9, 02:23am until December 11, 04:00pm

    NOW until 4:00pm Thu

    Flood Watch

  • Overnight

    Low: 27 °F

    Heavy Snow
    and Windy

  • Tuesday

    Tuesday: A slight chance of snow before 7am, then a chance of snow after 1pm.  Increasing clouds, with a high near 29. Breezy, with a west wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 32 mph.  Chance of precipitation is 50%. New snow accumulation of 1 to 3 inches possible.

    High: 29 °F

    Slight Chance
    Snow and
    Breezy then
    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow before midnight, then rain and snow between midnight and 1am, then rain after 1am. The rain and snow could be heavy at times.  Temperature rising to around 37 by 5am. South wind 7 to 17 mph becoming west after midnight.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 27 °F

    Heavy Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow, becoming all snow after 1pm. The rain and snow could be heavy at times.  High near 37. West wind 14 to 17 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 37 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times.  Low around 30. Breezy, with a west wind 16 to 18 mph.  Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    Low: 30 °F

    Heavy Snow
    and Breezy

  • Thursday

    Thursday: Snow. The snow could be heavy at times.  High near 33. Breezy.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 33 °F

    Heavy Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow likely, mainly before 4am.  Mostly cloudy, with a low around 30. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Snow Likely

  • Friday

    Friday: Snow likely before 1pm, then snow likely, possibly mixed with rain.  Mostly cloudy, with a high near 34. Chance of precipitation is 60%.

    High: 34 °F

    Snow Likely
    then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Snow, mainly before 4am. The snow could be heavy at times. Low around 27. Windy, with a west wind around 29 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 7 inches possible.
Tuesday
A slight chance of snow before 7am, then a chance of snow after 1pm. Increasing clouds, with a high near 29. Breezy, with a west wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 50%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow before midnight, then rain and snow between midnight and 1am, then rain after 1am. The rain and snow could be heavy at times. Temperature rising to around 37 by 5am. South wind 7 to 17 mph becoming west after midnight. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Wednesday
Rain and snow, becoming all snow after 1pm. The rain and snow could be heavy at times. High near 37. West wind 14 to 17 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 30. Breezy, with a west wind 16 to 18 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Thursday
Snow. The snow could be heavy at times. High near 33. Breezy. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
Snow likely, mainly before 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow likely before 1pm, then 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 before 7pm, then a chance of snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 34.
Saturday Night
Snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.
Sunday
Snow likely. Mostly cloudy, with a high near 30. Chance of precipitation is 70%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Monday
Snow. The snow could be heavy at times. High near 33. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Trinity WA
 47.99°N 120.88°W (Elev. 5915 ft)
1:26 am PST Dec 9, 2025
2am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database