Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Last Update: 153 PM PDT Thu Jun 18 2026

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Seattle, WA Local Forecast Office

30NM WSW TTI WA

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT...

Tonight
NW wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Seas 8 to 11 ft. Wave detail: NW 11 ft at 9 seconds and SW 3 ft at 16 seconds.
Fri
NW wind 15 to 20 kt, rising to 20 to 25 kt in the afternoon. Seas 7 to 10 ft. Wave detail: NW 10 ft at 9 seconds and SW 3 ft at 16 seconds.
Fri Night
NW wind 20 to 25 kt. Seas 9 to 12 ft. Wave detail: NW 12 ft at 10 seconds and SW 2 ft at 15 seconds.
Sat
NW wind 20 to 25 kt, easing to 15 to 20 kt in the afternoon. Seas 9 to 11 ft, subsiding to 7 to 10 ft in the afternoon. Wave detail: NW 11 ft at 10 seconds and SW 3 ft at 15 seconds.
Sat Night
NW wind 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 6 to 8 ft. Wave detail: NW 7 ft at 9 seconds and SW 3 ft at 14 seconds.
Sun
W wind around 5 kt. Seas 5 to 6 ft. Wave detail: NW 5 ft at 9 seconds and SW 3 ft at 16 seconds.
Sun Night
NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and SW 3 ft at 15 seconds.
Mon
N wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 7 seconds and SW 3 ft at 15 seconds.
Mon Night
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave detail: NW 7 ft at 7 seconds and SW 3 ft at 15 seconds.
Tue
NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 5 to 8 ft. Wave detail: NW 7 ft at 8 seconds and SW 2 ft at 14 seconds.
Tue Night
NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave detail: NW 9 ft at 8 seconds and SW 2 ft at 15 seconds.



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153 PM PDT Thu Jun 18 2026
 
 

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