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20NM SW Seattle WA

[NOTICE]

Last Update: 12:37 am PDT Oct 3, 2026
Forecast Valid: 3am PDT Oct 3, 2026-6pm PDT Oct 9, 2026

Saturday

NNE wind around 8 kt. Mostly cloudy through mid morning, then gradual clearing. Waves 1 ft or less.

Saturday Night

NNE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Increasing clouds. Waves 1 ft or less.

Sunday

Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Monday

Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

Monday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming NNE around 6 kt in the afternoon. Partly sunny. Waves 1 ft or less.

Tuesday Night

NNE wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming NNE 5 to 8 kt in the afternoon. Mostly sunny. 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.