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

6 Miles NNE Chinook Pass WA

Winter Storm Warning April 15, 12:19pm until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 15, 12:19pm until April 15, 11:00pm

    NOW until 11:00pm Wed

    Winter Storm Warning

  • This Afternoon

    High: 30 °F

    Heavy Snow
    and Blustery

  • Tonight

    Tonight: Snow likely, mainly before midnight. The snow could be heavy at times.  Mostly cloudy, with a low around 18. Wind chill values between 6 and 12. West northwest wind 13 to 16 mph, with gusts as high as 32 mph.  Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 18 °F

    Heavy Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 35. Wind chill values between 7 and 17. West northwest wind 14 to 20 mph, with gusts as high as 41 mph.

    High: 35 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before 11pm.  Partly cloudy, with a low around 20. Wind chill values between 12 and 17. West northwest wind 9 to 18 mph, with gusts as high as 38 mph.

    Low: 20 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43. West wind 6 to 8 mph.

    High: 43 °F

    Mostly 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 50.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before 5am, then a slight chance of rain and snow.  Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Snow showers, mainly before 5pm, then snow after 5pm. The snow could be heavy at times. Some thunder is also possible. High near 30. Wind chill values between 14 and 19. Blustery, with a west northwest wind 17 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow likely, mainly before midnight. The snow could be heavy at times. Mostly cloudy, with a low around 18. Wind chill values between 6 and 12. West northwest wind 13 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Thursday
Mostly sunny, with a high near 35. Wind chill values between 7 and 17. West northwest wind 14 to 20 mph, with gusts as high as 41 mph.
Thursday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 20. Wind chill values between 12 and 17. West northwest wind 9 to 18 mph, with gusts as high as 38 mph.
Friday
Mostly sunny, with a high near 43. West wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 50.
Saturday Night
A slight chance of rain before 5am, then a slight chance of rain and snow. Mostly cloudy, with a low around 34.
Sunday
A slight chance of rain and snow before 8am, then a slight chance of rain. Partly sunny, with a high near 52.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 37.
Monday
A slight chance of rain. Partly sunny, with a high near 57.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Chinook Pass WA
 46.95°N 121.46°W (Elev. 5587 ft)
11:28 am PDT Apr 15, 2026
12pm PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database