Last Update: 439 AM EST Sat Feb 21 2026

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Charleston, SC Local Forecast Office

19NM SSW R7 Navy Tower MR

Marine Zone Forecast

...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON...

Today
SW winds 10 to 15 kt. Seas 3 ft. Wave detail: S 3 ft at 5 seconds and SE 1 foot at 8 seconds. A slight chance of showers and tstms late.
Tonight
SW winds 10 to 15 kt with gusts to 25 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave detail: S 3 ft at 5 seconds and E 1 foot at 11 seconds. A chance of showers with a slight chance of tstms in the evening, then showers likely with a slight chance of tstms after midnight.
Sun
NW winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 4 to 5 ft, building to 5 to 7 ft in the afternoon. Wave detail: W 5 ft at 5 seconds and E 1 foot at 10 seconds, becoming W 7 ft at 6 seconds and E 1 foot at 9 seconds. Showers likely with a slight chance of tstms in the morning.
Sun Night
NW winds 30 kt with gusts to 40 kt. Seas 7 to 9 ft, building to 8 to 10 ft after midnight. Wave detail: NW 9 ft at 6 seconds and E 1 foot at 9 seconds.
Mon
NW winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 7 to 9 ft, subsiding to 6 to 8 ft in the afternoon. Wave detail: NW 8 ft at 6 seconds and E 1 foot at 10 seconds, becoming NW 7 ft at 6 seconds.
Mon Night
NW winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 7 ft. Wave detail: NW 7 ft at 6 seconds.
Tue
NW winds 15 to 20 kt. Seas 3 to 4 ft.
Tue Night
SW winds 10 to 15 kt. Seas 2 to 3 ft.
Wed
SW winds 10 to 15 kt. Seas 3 to 4 ft.
Wed Night
SW winds 15 to 20 kt. Seas 4 to 5 ft.

winds and seas higher in and near tstms.



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439 AM EST Sat Feb 21 2026
 
 

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