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

4 Miles N Chinook Pass WA

Winter Storm Warning April 15, 04:53pm until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 15, 04:53pm until April 15, 11:00pm

    NOW until 11:00pm Wed

    Winter Storm Warning

  • This Afternoon

    High: 25 °F

    Heavy Snow

  • Tonight

    Tonight: Snow showers likely, mainly before 1am. The snow could be heavy at times.  Mostly cloudy, with a low around 16. Wind chill values between 4 and 9. West northwest wind 13 to 17 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 16 °F

    Heavy Snow
    then Chance
    Snow Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 30. Wind chill values between 4 and 14. Blustery, with a west northwest wind 15 to 22 mph, with gusts as high as 37 mph.

    High: 30 °F

    Mostly Sunny
    then Sunny
    and Blustery

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers before 11pm.  Partly cloudy, with a low around 20. Wind chill values between 11 and 16. West wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 34 mph.

    Low: 20 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 38. West northwest wind around 7 mph.

    High: 38 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 25. Wind chill values between 8 and 13. West northwest wind around 21 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow showers likely, mainly before 1am. The snow could be heavy at times. Mostly cloudy, with a low around 16. Wind chill values between 4 and 9. West northwest wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday
Mostly sunny, with a high near 30. Wind chill values between 4 and 14. Blustery, with a west northwest wind 15 to 22 mph, with gusts as high as 37 mph.
Thursday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 20. Wind chill values between 11 and 16. West wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 34 mph.
Friday
Mostly sunny, with a high near 38. West northwest wind around 7 mph.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 45.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 33.
Sunday
A slight chance of rain before 2pm, then a slight chance of rain and snow. Partly sunny, with a high near 48.
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 53.
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 49.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 36.
Wednesday
A chance of snow. Partly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Chinook Pass WA
 46.92°N 121.52°W (Elev. 4774 ft)
2:10 pm PDT Apr 15, 2026
4pm PDT Apr 15, 2026-6pm PDT Apr 22, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database