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20NM SSW Seattle WA

[NOTICE]

Last Update: 11:26 am PDT Oct 10, 2026
Forecast Valid: 4pm PDT Oct 10, 2026-6pm PDT Oct 17, 2026

Tonight

N wind 8 to 13 km/h becoming variable and less than 5 km/h after midnight. Mostly clear. Waves 1 m or less.

Sunday

NNE wind 5 to 10 km/h increasing to 11 to 16 km/h in the afternoon. Sunny. Waves 1 m or less.

Sunday Night

NNE wind 9 to 14 km/h becoming variable and less than 5 km/h in the evening. Clear. Waves 1 m or less.

Columbus Day

Variable winds 5 km/h or less. Sunny. Waves 1 m or less.

Monday Night

Variable winds 5 km/h or less. Mostly clear. Waves 1 m or less.

Tuesday

Variable winds less than 5 km/h becoming SW 5 to 8 km/h in the afternoon. Mostly sunny. Waves 1 m or less.

Tuesday Night

Variable winds 5 km/h or less. Partly cloudy. Waves 1 m or less.

Wednesday

Variable winds 5 km/h or less. Mostly cloudy. Waves 1 m or less.

Wednesday Night

Variable winds 5 km/h or less. Partly cloudy. Waves 1 m 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.