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

3 Miles SSW Chinook Pass WA

Winter Storm Warning April 15, 03:24am until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 15, 03:24am until April 15, 11:00pm

    NOW until 11:00pm Wed

    Winter Storm Warning

  • Overnight

    Low: 27 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow showers, mainly before 5pm, then snow after 5pm. Some thunder is also possible.  High near 36. Wind chill values between 20 and 27. Southwest wind 8 to 11 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Chance Snow
    then Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Wind chill values between 16 and 21. South southwest wind 7 to 10 mph becoming north northwest after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Snow Likely
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow after 11am.  Mostly sunny, with a high near 41. Wind chill values between 17 and 27. West wind 7 to 11 mph, with gusts as high as 30 mph.

    High: 41 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm.  Mostly cloudy, with a low around 27. West wind 6 to 13 mph, with gusts as high as 31 mph.  Little or no snow accumulation expected.

    Low: 27 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

Detailed Forecast

Overnight
A 30 percent chance of snow before 4am. Mostly cloudy, with a low around 27. West southwest wind around 8 mph, with gusts as high as 21 mph. Total nighttime snow accumulation of 3 to 7 inches possible.
Wednesday
Snow showers, mainly before 5pm, then snow after 5pm. Some thunder is also possible. High near 36. Wind chill values between 20 and 27. Southwest wind 8 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Wind chill values between 16 and 21. South southwest wind 7 to 10 mph becoming north northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
A 20 percent chance of snow after 11am. Mostly sunny, with a high near 41. Wind chill values between 17 and 27. West wind 7 to 11 mph, with gusts as high as 30 mph.
Thursday Night
A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 27. West wind 6 to 13 mph, with gusts as high as 31 mph. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 47.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
Partly sunny, with a high near 55.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 39.
Sunday
A chance of rain before 8am, then a chance of rain and snow. Mostly cloudy, with a high near 58.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 40.
Monday
A chance of rain. Partly sunny, with a high near 61.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 41.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Chinook Pass WA
 46.84°N 121.52°W (Elev. 4052 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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Hourly Weather Forecast

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