Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

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 15, 03:30am until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 15, 03:30am until April 15, 11:00pm

    NOW until 11:00pm Wed

    Winter Storm Warning

  • Overnight

    Low: 20 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: Snow showers, mainly before 5pm, then snow after 5pm. Some thunder is also possible.  High near 29. Wind chill values between 8 and 17. West wind 11 to 17 mph, with gusts as high as 38 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 29 °F

    Chance Snow
    then Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm.  Low around 19. Wind chill values between 7 and 14. West northwest wind 11 to 13 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Snow then
    Slight Chance
    Snow

  • Thursday

    Thursday: A 20 percent chance of snow after 11am.  Mostly sunny, with a high near 34. Wind chill values between 9 and 19. West northwest wind 11 to 17 mph, with gusts as high as 38 mph.

    High: 34 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm.  Partly cloudy, with a low around 21. West wind 8 to 17 mph, with gusts as high as 37 mph.  Little or no snow accumulation expected.

    Low: 21 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

Detailed Forecast

Overnight
A 20 percent chance of snow before 4am. Mostly cloudy, with a low around 20. Wind chill values between 11 and 16. West northwest wind around 10 mph, with gusts as high as 24 mph.
Wednesday
Snow showers, mainly before 5pm, then snow after 5pm. Some thunder is also possible. High near 29. Wind chill values between 8 and 17. West wind 11 to 17 mph, with gusts as high as 38 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 7 and 14. West northwest wind 11 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday
A 20 percent chance of snow after 11am. Mostly sunny, with a high near 34. Wind chill values between 9 and 19. West northwest wind 11 to 17 mph, with gusts as high as 38 mph.
Thursday Night
A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 21. West wind 8 to 17 mph, with gusts as high as 37 mph. Little or no snow accumulation expected.
Friday
Sunny, with a high near 41.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 48.
Saturday Night
A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 34.
Sunday
A chance of rain and snow. Partly sunny, with a high near 51.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 36.
Monday
A chance of rain and snow. Partly sunny, with a high near 54.
Monday Night
A chance of rain and snow. Partly cloudy, with a low around 37.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Chinook Pass WA
 46.93°N 121.49°W (Elev. 5233 ft)
1:16 am PDT Apr 15, 2026
3am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
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Additional Resources

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