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Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Hazardous Weather Conditions

Current conditions at

White Pass (TWHIT)

Lat: 46.638°NLon: 121.39°WElev: 4498.0ft.

NA

N/A

Humidity 70%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint N/A
Visibility 1.24 mi
Last update 03 Apr 10:56 AM PDT
Extended Forecast for

4 Miles N Chinook Pass WA

Winter Storm Warning April 14, 11:00am until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Today

    Today: Snow, mainly after 11am. The snow could be heavy at times. High near 31. Wind chill values between 16 and 21. South southwest wind 13 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 5 inches possible.

    High: 31 °F

    Snow Likely
    then Heavy
    Snow

  • Tonight

    Tonight: Snow, mainly before 4am. The snow could be heavy at times. Low around 21. Wind chill values between 10 and 15. South southwest wind 13 to 17 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: 21 °F

    Heavy Snow

  • Wednesday

    Wednesday: A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 26. Wind chill values between 9 and 14. West wind 11 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 26 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm. Low around 18. Wind chill values between 7 and 12. West wind 13 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow after 11am. Mostly sunny, with a high near 30. Blustery, with a west northwest wind 13 to 22 mph, with gusts as high as 36 mph. Little or no snow accumulation expected.

    High: 30 °F

    Chance Snow
    and Blustery

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 20. Blustery. Little or no snow accumulation expected.

    Low: 20 °F

    Chance Snow
    and Blustery
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
Snow, mainly after 11am. The snow could be heavy at times. High near 31. Wind chill values between 16 and 21. South southwest wind 13 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow, mainly before 4am. The snow could be heavy at times. Low around 21. Wind chill values between 10 and 15. South southwest wind 13 to 17 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Wednesday
A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 26. Wind chill values between 9 and 14. West wind 11 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow, mainly before 11pm. Low around 18. Wind chill values between 7 and 12. West wind 13 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday
A 30 percent chance of snow after 11am. Mostly sunny, with a high near 30. Blustery, with a west northwest wind 13 to 22 mph, with gusts as high as 36 mph. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 20. Blustery. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 43.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 32.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 40.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 29.
Monday
Rain and snow likely. Mostly cloudy, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Chinook Pass WA
 46.92°N 121.52°W (Elev. 4774 ft)
Last Update:
11:27 pm PDT Apr 13, 2026
Forecast Valid:
7am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation