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

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. 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

15 Miles SSW White Pass WA

Winter Storm Warning April 14, 11:00am until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  • This Afternoon

    This Afternoon: A chance of rain and snow.  Mostly cloudy, with a high near 37. West wind around 10 mph.  Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: A chance of rain and snow before midnight, then a slight chance of snow after 3am.  Mostly cloudy, with a low around 29. Wind chill values between 20 and 25. West wind around 9 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Snow, mainly after 1pm.  High near 35. Wind chill values between 20 and 26. West southwest wind 9 to 13 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow
    then Snow

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times.  Low around 26. West southwest wind 9 to 13 mph.  Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: 26 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow.  High near 32. West wind 7 to 10 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 32 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm.  Low around 22. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Snow then
    Slight Chance
    Snow

  • Thursday

    Thursday: A 40 percent chance of snow, mainly after 11am.  Partly sunny, with a high near 35. Little or no snow accumulation expected.

    High: 35 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A slight chance of snow before 11pm.  Partly cloudy, with a low around 25.

    Low: 25 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of rain and snow. Mostly cloudy, with a high near 37. West wind around 10 mph. Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A chance of rain and snow before midnight, then a slight chance of snow after 3am. Mostly cloudy, with a low around 29. Wind chill values between 20 and 25. West wind around 9 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday
Snow, mainly after 1pm. High near 35. Wind chill values between 20 and 26. West southwest wind 9 to 13 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 26. West southwest wind 9 to 13 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Wednesday
Snow. High near 32. West wind 7 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow, mainly before 11pm. Low around 22. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday
A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 35. Little or no snow accumulation expected.
Thursday Night
A slight chance of snow before 11pm. Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 47.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 34.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 43.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SSW White Pass WA
 46.41°N 121.46°W (Elev. 4078 ft)
11:27 am PDT Apr 13, 2026
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 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