National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

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

6 Miles NW 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 before 5pm, then a chance of rain and snow. Mostly cloudy, with a high near 42. West southwest wind around 9 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: A chance of rain and snow before 1am, then a slight chance of snow between 1am and 5am. Mostly cloudy, with a low around 33. West southwest wind around 9 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: A chance of snow before 11am, then snow, possibly mixed with rain. High near 40. West southwest wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Rain/Snow
    Likely then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow, possibly mixed with rain, becoming all snow after 2am. The snow could be heavy at times. Low around 29. Southwest wind 9 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 29 °F

    Rain/Snow

  • Wednesday

    Wednesday: Snow. High near 35. West wind 6 to 9 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 35 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm. Low around 25. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 25 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow after 11am. Partly sunny, with a high near 39. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow before 11pm. Partly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of rain before 5pm, then a chance of rain and snow. Mostly cloudy, with a high near 42. West southwest wind around 9 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tonight
A chance of rain and snow before 1am, then a slight chance of snow between 1am and 5am. Mostly cloudy, with a low around 33. West southwest wind around 9 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Tuesday
A chance of snow before 11am, then snow, possibly mixed with rain. High near 40. West southwest wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow, possibly mixed with rain, becoming all snow after 2am. The snow could be heavy at times. Low around 29. Southwest wind 9 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Wednesday
Snow. High near 35. West wind 6 to 9 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow, mainly before 11pm. Low around 25. 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 39. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of snow before 11pm. Partly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly cloudy, with a high near 50.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 37.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NW White Pass WA
 46.71°N 121.49°W (Elev. 3514 ft)
Last Update:
11:27 am PDT Apr 13, 2026
Forecast Valid:
1pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation