Last Update: 230 PM PDT Mon Sep 29 2025

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Seattle, WA Local Forecast Office

30NM WSW TTI WA

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM PDT TUESDAY... ...GALE WARNING IN EFFECT FROM 2 AM PDT TUESDAY THROUGH TUESDAY EVENING...

Tonight
SE wind 10 to 15 kt, rising to 20 to 25 kt with gusts up to 35 kt. Seas 8 to 10 ft. Wave detail: S 8 ft at 8 seconds and W 7 ft at 12 seconds. A chance of showers until early morning. A slight chance of tstms late this evening and overnight. A chance of rain late.
Tue
SE wind 25 to 35 kt, rising to 30 to 40 kt in the afternoon. Seas 10 to 12 ft, building to 12 to 17 ft in the afternoon. Wave detail: S 17 ft at 10 seconds and W 4 ft at 11 seconds. Rain in the morning, then rain with a chance of tstms in the afternoon. Patchy fog.
Tue Night
S wind 25 to 30 kt, easing to 20 to 25 kt after midnight. Seas 13 to 17 ft. Wave detail: S 14 ft at 10 seconds and W 13 ft at 15 seconds. Showers with a chance of tstms in the evening, then showers after midnight.
Wed
S wind 25 to 30 kt. Seas 16 to 19 ft. Wave detail: S 13 ft at 9 seconds and SW 15 ft at 13 seconds. Showers with a chance of tstms. Patchy fog in the afternoon.
Wed Night
S wind 25 to 30 kt, easing to 20 to 25 kt after midnight. Seas 17 to 19 ft, subsiding to 14 to 16 ft after midnight. Wave detail: S 11 ft at 9 seconds and SW 14 ft at 14 seconds. Showers with a chance of tstms. Patchy fog.
Thu
S wind around 20 kt, easing to around 15 kt in the afternoon. Seas 12 to 14 ft, subsiding to 10 to 12 ft in the afternoon. Wave detail: S 7 ft at 9 seconds and SW 11 ft at 11 seconds. Patchy fog in the morning. Showers.
Thu Night
SE wind 10 to 15 kt. Seas 8 to 9 ft, subsiding to 7 ft after midnight. Wave detail: S 4 ft at 9 seconds, W 7 ft at 11 seconds and SW 2 ft at 16 seconds. A chance of showers.
Fri
S wind 10 to 15 kt. Seas around 6 ft. Wave detail: S 4 ft at 8 seconds and W 5 ft at 11 seconds. A chance of showers.
Fri Night
W wind 10 to 15 kt. Seas around 6 ft. Wave detail: SW 4 ft at 6 seconds and W 5 ft at 11 seconds. Showers likely, mainly in the evening.
Sat
NW wind 10 to 15 kt. Seas 6 to 8 ft. Wave detail: W 8 ft at 12 seconds. A chance of showers in the morning.
Sat Night
NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 8 to 10 ft. Wave detail: NW 10 ft at 12 seconds.

winds and seas higher in and near tstms.



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230 PM PDT Mon Sep 29 2025
 
 

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