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 >

Last Update: 243 AM PDT Mon Apr 13 2026

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Seattle, WA Local Forecast Office

26NM N Forks WA

Marine Zone Forecast

Today

W wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: W 6 ft at 8 seconds. A chance of rain early this morning. A slight chance of rain late.

Tonight

W wind 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave detail: W 5 ft at 8 seconds. Rain after midnight.

Tue

SW wind 20 to 25 kt, rising to 25 to 30 kt in the afternoon. Seas 4 to 6 ft. Wave detail: SW 5 ft at 5 seconds and W 6 ft at 8 seconds. Rain.

Tue Night

W wind 25 to 30 kt with gusts up to 40 kt, easing to 15 to 20 kt after midnight. Seas 5 to 8 ft. Wave detail: SW 2 ft at 7 seconds and W 8 ft at 8 seconds. Rain, mainly in the evening.

Wed

W wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 2 ft at 4 seconds and W 6 ft at 10 seconds. Showers in the morning, then rain in the afternoon.

Wed Night

W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave detail: NW 2 ft at 4 seconds and W 7 ft at 11 seconds. A chance of rain in the evening.

Thu

SW wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: W 6 ft at 10 seconds.

Thu Night

W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave detail: W 6 ft at 9 seconds.

Fri

W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: W 4 ft at 8 seconds.

Fri Night

W wind 5 to 10 kt, veering to N after midnight. Seas around 3 ft. Wave detail: W 3 ft at 8 seconds.