Last Update: 440 PM EST Wed Dec 31 2025

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Charleston, SC Local Forecast Office

19NM SSW R7 Navy Tower MR

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EST THIS EVENING THROUGH THURSDAY MORNING...

Tonight
W winds 10 to 15 kt, increasing to 15 to 20 kt late this evening. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave detail: W 3 ft at 4 seconds and E 2 ft at 7 seconds, becoming W 4 ft at 5 seconds and E 2 ft at 8 seconds.
Thu
W winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave detail: W 4 ft at 5 seconds and E 1 foot at 8 seconds.
Thu Night
W winds 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft. Wave detail: W 3 ft at 4 seconds and E 1 foot at 8 seconds.
Fri
W winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: W 2 ft at 4 seconds and E 1 foot at 9 seconds.
Fri Night
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: SW 3 ft at 4 seconds and E 1 foot at 13 seconds. A slight chance of showers after midnight.
Sat
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 6 ft in the afternoon. Wave detail: SW 4 ft at 5 seconds and E 1 foot at 13 seconds, becoming S 6 ft at 6 seconds and E 1 foot at 13 seconds. A chance of showers in the morning, then showers with a slight chance of tstms in the afternoon.
Sat Night
SW winds 20 to 25 kt, becoming W after midnight. Seas 4 to 6 ft. Showers with a chance of tstms in the evening, then a chance of showers with a slight chance of tstms after midnight.
Sun
N winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers.
Sun Night
NE winds 15 kt. Seas 3 to 4 ft.
Mon
NE winds 10 to 15 kt. Seas 3 to 4 ft.
Mon Night
NE winds 5 to 10 kt. Seas 2 to 3 ft.

winds and seas higher in and near tstms.



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440 PM EST Wed Dec 31 2025
 
 

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