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21NM S Seattle WA

[NOTICE]

Last Update: 1:25 am PST Dec 4, 2025
Forecast Valid: 2am PST Dec 4, 2025-6pm PST Dec 10, 2025

Thursday

Variable winds less than 5 kt becoming S around 6 kt in the morning. Rain, mainly before 2pm. Waves 1 ft or less.

Thursday Night

Variable winds less than 5 kt becoming SSW 5 to 8 kt in the evening. Rain, mainly after 9pm. Waves 1 ft or less.

Friday

SW wind 12 to 16 kt, with gusts as high as 24 kt. Rain. Waves 1 ft or less.

Friday Night

SW wind 14 to 17 kt, with gusts as high as 24 kt. Rain. Waves around 1 ft.

Saturday

SW wind around 12 kt. Rain. Waves around 1 ft.

Saturday Night

S wind 7 to 9 kt. Rain. Waves 1 ft or less.

Sunday

SSW wind 8 to 14 kt, with gusts as high as 21 kt. Rain. Waves 1 ft or less.

Sunday Night

SSW wind 8 to 11 kt. Rain. Waves 1 ft or less.

Monday

S wind 8 to 13 kt, with gusts as high as 20 kt. 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.