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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

5 Miles NNE 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 noon. The snow could be heavy at times. High near 35. Wind chill values between 18 and 24. Southwest wind 13 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 5 inches possible.

    High: 35 °F

    Chance Snow
    then Heavy
    Snow

  • Tonight

    Tonight: Snow, mainly before 4am. The snow could be heavy at times. Low around 22. Wind chill values between 12 and 17. Southwest wind 14 to 17 mph becoming west northwest after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    Low: 22 °F

    Heavy Snow

  • Wednesday

    Wednesday: A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 30. Wind chill values between 10 and 15. West northwest wind 13 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 30 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm. Low around 19. Wind chill values between 6 and 12. West wind 15 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow after 11am. Mostly sunny, with a high near 33. Breezy, with a west northwest wind 14 to 22 mph, with gusts as high as 39 mph. Little or no snow accumulation expected.

    High: 33 °F

    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 21. Blustery. Little or no snow accumulation expected.

    Low: 21 °F

    Chance Snow
    and Blustery
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

Today
Snow, mainly after noon. The snow could be heavy at times. High near 35. Wind chill values between 18 and 24. Southwest wind 13 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow, mainly before 4am. The snow could be heavy at times. Low around 22. Wind chill values between 12 and 17. Southwest wind 14 to 17 mph becoming west northwest after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Wednesday
A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 30. Wind chill values between 10 and 15. West northwest wind 13 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow, mainly before 11pm. Low around 19. Wind chill values between 6 and 12. West wind 15 to 20 mph, with gusts as high as 36 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 33. Breezy, with a west northwest wind 14 to 22 mph, with gusts as high as 39 mph. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 21. Blustery. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 39.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Partly sunny, with a high near 46.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 33.
Sunday
Snow likely. Mostly cloudy, with a high near 44.
Sunday Night
Snow likely. Mostly cloudy, with a low around 30.
Monday
Rain and snow likely. Mostly cloudy, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Chinook Pass WA
 46.93°N 121.46°W (Elev. 6322 ft)
Last Update:
11:27 pm PDT Apr 13, 2026
Forecast Valid:
8am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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