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

3 Miles WSW 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
  • Overnight

    Overnight: A slight chance of snow between 3am and 5am.  Mostly cloudy, with a low around 29. South southwest wind around 7 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: Snow, mainly after 11am. The snow could be heavy at times.  High near 34. Wind chill values between 23 and 28. South southwest wind 7 to 13 mph, with gusts as high as 32 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 34 °F

    Heavy Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly before 4am. The snow could be heavy at times.  Low around 24. South southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 24 °F

    Heavy Snow

  • Wednesday

    Wednesday: A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible.  High near 29. Wind chill values between 16 and 21. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 29 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm.  Low around 21. West wind 6 to 11 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 21 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow after 11am.  Partly sunny, with a high near 34. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm.  Partly cloudy, with a low around 24. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of snow between 3am and 5am. Mostly cloudy, with a low around 29. South southwest wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
Snow, mainly after 11am. The snow could be heavy at times. High near 34. Wind chill values between 23 and 28. South southwest wind 7 to 13 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Tuesday Night
Snow, mainly before 4am. The snow could be heavy at times. Low around 24. South southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Wednesday
A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 29. Wind chill values between 16 and 21. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow, mainly before 11pm. Low around 21. West wind 6 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday
A 30 percent chance of snow after 11am. Partly sunny, with a high near 34. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 24. New snow accumulation of less than a half inch possible.
Friday
Mostly sunny, with a high near 39.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 46.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 35.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 43.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 33.
Monday
Rain and snow likely. Mostly cloudy, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Chinook Pass WA
 46.85°N 121.56°W (Elev. 5295 ft)
11:27 pm PDT Apr 13, 2026
12am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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