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21NM S Seattle WA

[NOTICE]

Last Update: 7:00 am PST Dec 9, 2025
Forecast Valid: 12pm PST Dec 9, 2025-6pm PST Dec 15, 2025

...GALE WARNING IN EFFECT UNTIL 4 AM PST TUESDAY...

This Afternoon

Variable winds 5 kt or less. Rain, mainly after 1pm. Patchy fog between 4pm and 5pm. Waves 1 ft or less.

Tonight

SSW wind 13 to 17 kt. Rain. Patchy fog before 2am. Waves 1 ft or less.

Wednesday

SSW wind 16 to 21 kt, with gusts as high as 27 kt. Rain. Waves around 1 ft.

Wednesday Night

SSW wind 10 to 14 kt, with gusts as high as 21 kt. Rain. Waves around 1 ft.

Thursday

SSW wind around 7 kt. Rain. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Rain likely, mainly before 10pm. Waves 1 ft or less.

Friday

Variable winds 5 kt or less. A chance of rain. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of rain. Waves 1 ft or less.

Saturday

Variable winds less than 5 kt becoming SSW around 6 kt in the afternoon. A chance of rain. Waves 1 ft or less.

*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.