Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. 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 14, 11:00am until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  • Tonight

    Tonight: A 30 percent chance of snow between 3am and 5am.  Mostly cloudy, with a low around 27. Wind chill values between 18 and 23. Southwest wind 10 to 14 mph.  Total nighttime snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Tuesday

    Tuesday: Snow, mainly after noon. The snow could be heavy at times.  High near 31. Wind chill values between 16 and 21. South southwest wind 10 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 31 °F

    Heavy Snow

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times.  Low around 22. Wind chill values between 14 and 19. South southwest wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 22 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow.  High near 26. Wind chill values between 10 and 15. West wind 9 to 17 mph, with gusts as high as 37 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 26 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm.  Low around 18. West wind 11 to 17 mph, with gusts as high as 36 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow after 11am.  Partly sunny, with a high near 29. Little or no snow accumulation expected.

    High: 29 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm.  Partly cloudy, with a low around 20. Little or no snow accumulation expected.

    Low: 20 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of snow between 3am and 5am. Mostly cloudy, with a low around 27. Wind chill values between 18 and 23. Southwest wind 10 to 14 mph. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Snow, mainly after noon. The snow could be heavy at times. High near 31. Wind chill values between 16 and 21. South southwest wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 22. Wind chill values between 14 and 19. South southwest wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Wednesday
Snow. High near 26. Wind chill values between 10 and 15. West wind 9 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow, mainly before 11pm. Low around 18. West wind 11 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday
A 30 percent chance of snow after 11am. Partly sunny, with a high near 29. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 20. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 41.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 31.
Sunday
Snow likely. Mostly cloudy, with a high near 37.
Sunday Night
Snow likely. Mostly cloudy, with a low around 29.
Monday
A chance of snow. Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Chinook Pass WA
 46.88°N 121.51°W (Elev. 4823 ft)
11:27 am PDT Apr 13, 2026
10pm PDT Apr 13, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

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