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Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

SAWMILL FLATS (MEFW1)

Lat: 46.9675°NLon: 121.08444°WElev: 3000.0ft.

NA

34°F

1°C

Humidity 62%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 10 Mar 11:25 AM PDT
Extended Forecast for

Chinook Pass WA

Winter Storm Warning March 10, 05:00pm until March 13, 05:00am
Click here for hazard details and duration
Winter Storm Warning

  • This Afternoon

    This Afternoon: Snow showers after 2pm. The snow could be heavy at times. High near 23. Southwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 5 inches possible.

    High: 23 °F

    Heavy Snow

  • Tonight

    Tonight: Snow. Low around 22. Southwest wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 22 °F

    Snow

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times. High near 32. Southwest wind 10 to 16 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

    High: 32 °F

    Heavy Snow

  • Wednesday Night

    Wednesday Night: Snow before 11pm, then snow, possibly mixed with rain between 11pm and 2am, then snow after 2am. The snow could be heavy at times. Widespread blowing snow. Low around 26. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

    Low: 26 °F

    Rain/Snow and
    Blowing Snow

  • Thursday

    Thursday: Snow. The snow could be heavy at times. Widespread blowing snow. High near 30. Breezy, with a west wind 17 to 22 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.

    High: 30 °F

    Heavy Snow
    and Blowing
    Snow

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Low around 28. Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.

    Low: 28 °F

    Heavy Snow

  • Friday

    Friday: Snow. The snow could be heavy at times. High near 32. Chance of precipitation is 100%. New snow accumulation of 16 to 22 inches possible.

    High: 32 °F

    Heavy Snow

  • Friday Night

    Friday Night: Snow. The snow could be heavy at times. Low around 18. Chance of precipitation is 90%.

    Low: 18 °F

    Heavy Snow
    then Snow
    Likely

  • Saturday

    Saturday: Snow likely. Partly sunny, with a high near 26. Chance of precipitation is 70%.

    High: 26 °F

    Snow Likely

Detailed Forecast

This Afternoon
Snow showers after 2pm. The snow could be heavy at times. High near 23. Southwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow. Low around 22. Southwest wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 32. Southwest wind 10 to 16 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.
Wednesday Night
Snow before 11pm, then snow, possibly mixed with rain between 11pm and 2am, then snow after 2am. The snow could be heavy at times. Widespread blowing snow. Low around 26. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.
Thursday
Snow. The snow could be heavy at times. Widespread blowing snow. High near 30. Breezy, with a west wind 17 to 22 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.
Thursday Night
Snow. The snow could be heavy at times. Low around 28. Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.
Friday
Snow. The snow could be heavy at times. High near 32. Chance of precipitation is 100%. New snow accumulation of 16 to 22 inches possible.
Friday Night
Snow. The snow could be heavy at times. Low around 18. Chance of precipitation is 90%.
Saturday
Snow likely. Partly sunny, with a high near 26. Chance of precipitation is 70%.
Saturday Night
A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 17.
Sunday
Snow likely. Mostly cloudy, with a high near 33.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Monday
Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chinook Pass WA
 46.88°N 121.5°W (Elev. 4823 ft)
Last Update:
10:15 am PDT Mar 10, 2026
Forecast Valid:
12pm PDT Mar 10, 2026-6pm PDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation