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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 >

For More Weather Information:

Seattle, WA Local Forecast Office

35NM WSW Seattle WA

Marine Point Forecast

[NOTICE]

    • Today

      Today:WSW wind 10 to 15 kt. A chance of rain, mainly between 1pm and 3pm. Waves 1 ft or less.

      WSW 15kt
      < 1ft

    • Tonight

      Tonight:SSW wind 9 to 14 kt. A chance of rain, mainly between 1am and 5am. Waves 1 ft or less.

      SSW 14kt
      < 1ft

    • Tuesday

      Tuesday:SSW wind 11 to 21 kt, with gusts as high as 27 kt. Rain, mainly after 8am. Waves 1 ft or less.

      SSW 21kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 16 to 21 kt becoming W 6 to 11 kt after midnight. Winds could gust as high as 27 kt. Rain, mainly before 11pm. Waves 1 ft or less.

      SSW 21kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming WSW 5 to 10 kt in the afternoon. A chance of rain, then showers and possibly a thunderstorm after 11am. Waves 1 ft or less.

      ⇑WSW 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:WNW wind 6 to 11 kt becoming variable and less than 5 kt in the evening. A chance of rain before 11pm. Waves 1 ft or less.

      WNW 11kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SW 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.

      ⇑SW 8kt
      < 1ft

    • Thursday Night

      Thursday Night:WSW wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Waves 1 ft or less.

      WSW 10kt⇓
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 11:27 am PDT Apr 13, 2026
Forecast Valid: 11am PDT Apr 13, 2026-6pm PDT Apr 19, 2026

View Nearby Observations

Detailed Forecast


Today
WSW wind 10 to 15 kt. A chance of rain, mainly between 1pm and 3pm. Waves 1 ft or less.
Tonight
SSW wind 9 to 14 kt. A chance of rain, mainly between 1am and 5am. Waves 1 ft or less.
Tuesday
SSW wind 11 to 21 kt, with gusts as high as 27 kt. Rain, mainly after 8am. Waves 1 ft or less.
Tuesday Night
SSW wind 16 to 21 kt becoming W 6 to 11 kt after midnight. Winds could gust as high as 27 kt. Rain, mainly before 11pm. Waves 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming WSW 5 to 10 kt in the afternoon. A chance of rain, then showers and possibly a thunderstorm after 11am. Waves 1 ft or less.
Wednesday Night
WNW wind 6 to 11 kt becoming variable and less than 5 kt in the evening. A chance of rain before 11pm. Waves 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SW 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.
Thursday Night
WSW wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Waves 1 ft or less.
Friday
Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 47.37°N 123.13°W
Last Update: 11:27 am PDT Apr 13, 2026
Forecast Valid: 11am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
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