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]

Late Afternoon
W 13kt
4ft
Tonight
SW 16kt
3-4ft
Tuesday
⇑SW 24kt
3-5ft
Tuesday Night
W 24kt⇓
6-7ft
Wednesday
W 15kt
4ft
Wednesday Night
W 18kt⇓
4-5ft
Thursday
W 12kt
3-4ft
Thursday Night
W 16kt
3-4ft
Friday
W 8kt
2-3ft

Associated Zone Forecast which includes this point

Last Update: 11:27 am PDT Apr 13, 2026
Forecast Valid: 4pm PDT Apr 13, 2026-6pm PDT Apr 20, 2026

View Nearby Observations

Detailed Forecast

Late Afternoon

W wind around 13 kt. A chance of rain, mainly after 5pm. . Waves around 4 ft.

Tonight

WSW wind 9 to 16 kt becoming SSW after midnight. Rain likely, mainly between 3am and 5am. . Waves 3 to 4 ft.

Tuesday

SW wind 11 to 16 kt increasing to 19 to 24 kt in the morning. Winds could gust as high as 31 kt. Rain. . Waves 3 to 5 ft.

Tuesday Night

W wind 19 to 24 kt decreasing to 12 to 17 kt after midnight. Winds could gust as high as 31 kt. Rain before 5am, then a chance of rain and snow. . Waves 6 to 7 ft.

Wednesday

W wind 11 to 15 kt. Rain likely, possibly mixed with snow showers before 8am, then rain showers. Some thunder is also possible. . Waves around 4 ft.

Wednesday Night

W wind 13 to 18 kt decreasing to 7 to 12 kt after midnight. A slight chance of rain before 11pm. . Waves 4 to 5 ft.

Thursday

W wind 6 to 12 kt becoming SSW in the morning. Sunny. . Waves 3 to 4 ft.

Thursday Night

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

Friday

W wind around 8 kt. Mostly cloudy. . 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.