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

24NM NNE Forks WA

Marine Point Forecast

[NOTICE]

Today
W 21kt
3-4ft
Tonight
W 20kt
3-4ft
Tuesday
⇑SSW 31kt
3ft
Tuesday Night
W 33kt⇓
7ft
Wednesday
W 15kt
4-5ft
Wednesday Night
WSW 18kt⇓
4-5ft
Thursday
W 13kt
3ft
Thursday Night
WSW 16kt
3-4ft
Friday
WSW 9kt
2-3ft

Associated Zone Forecast which includes this point

Last Update: 11:27 pm PDT Apr 12, 2026
Forecast Valid: 6am PDT Apr 13, 2026-6pm PDT Apr 19, 2026

View Nearby Observations

Detailed Forecast

Today

W wind 19 to 21 kt. A chance of rain before 2pm, then a slight chance of rain after 4pm. . Waves 3 to 4 ft.

Tonight

W wind 17 to 20 kt becoming SW after midnight. Rain likely, mainly after 4am. . Waves 3 to 4 ft.

Tuesday

SSW wind 19 to 24 kt increasing to 26 to 31 kt in the afternoon. Winds could gust as high as 37 kt. Rain. . Waves around 3 ft.

Tuesday Night

W wind 28 to 33 kt decreasing to 18 to 23 kt after midnight. Winds could gust as high as 39 kt. Rain, mainly before 11pm. . Waves 4 ft building to 7 ft.

Wednesday

W wind 12 to 15 kt. Rain likely, then showers and possibly a thunderstorm after 11am. . Waves 4 to 5 ft.

Wednesday Night

WSW wind 13 to 18 kt decreasing to 6 to 11 kt after midnight. A slight chance of rain before 11pm. . Waves 4 to 5 ft.

Thursday

W wind 6 to 13 kt. Sunny. . Waves around 3 ft.

Thursday Night

WSW wind 9 to 16 kt. Partly cloudy. . Waves 3 to 4 ft.

Friday

WSW wind 7 to 9 kt. Partly sunny. . Waves 2 to 3 ft.

*Notices:

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.
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.