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

Chinook Pass WA

Winter Storm Warning April 15, 12:26am until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 15, 12:26am until April 15, 11:00pm

    NOW until 11:00pm Wed

    Winter Storm Warning

  • Overnight

    Low: 20 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow showers, mainly before 5pm, then snow after 5pm. Some thunder is also possible.  High near 27. Wind chill values between 10 and 15. West wind 8 to 14 mph, with gusts as high as 33 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 27 °F

    Chance Snow
    then Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 19. Wind chill values between 9 and 14. West southwest wind 8 to 10 mph becoming northwest in the evening. Winds could gust as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 19 °F

    Snow Likely
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow after 11am.  Mostly sunny, with a high near 31. Wind chill values between 9 and 19. West northwest wind 8 to 14 mph, with gusts as high as 33 mph.

    High: 31 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm.  Mostly cloudy, with a low around 22. West wind 6 to 14 mph, with gusts as high as 33 mph.  Little or no snow accumulation expected.

    Low: 22 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 38.

    High: 38 °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 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

Overnight
Snow, mainly before 3am. The snow could be heavy at times. Low around 20. Wind chill values between 13 and 18. West wind 8 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 6 to 10 inches possible.
Wednesday
Snow showers, mainly before 5pm, then snow after 5pm. Some thunder is also possible. High near 27. Wind chill values between 10 and 15. West wind 8 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 19. Wind chill values between 9 and 14. West southwest wind 8 to 10 mph becoming northwest in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Thursday
A 20 percent chance of snow after 11am. Mostly sunny, with a high near 31. Wind chill values between 9 and 19. West northwest wind 8 to 14 mph, with gusts as high as 33 mph.
Thursday Night
A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 22. West wind 6 to 14 mph, with gusts as high as 33 mph. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 38.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 45.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 35.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 49.
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 51.
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 52.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Chinook Pass WA
 46.88°N 121.54°W (Elev. 4580 ft)
11:27 pm PDT Apr 14, 2026
12am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database