Expires:202512051800;;029456 FZUS52 KCHS 050530 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 1230 AM EST Fri Dec 5 2025 South Santee River SC to Savannah GA out 20 NM and Savannah GA to Altamaha Sound GA out 60 NM, including Charleston Harbor and Grays Reef National Marine Sanctuary AMZ350-051800- Waters from South Santee River to Edisto Beach SC out 20 NM- 1230 AM EST Fri Dec 5 2025 .REST OF TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds. A chance of showers. .FRI...N winds 5 to 10 kt. Seas 2 to 3 ft, building to 3 to 4 ft in the afternoon. Wave Detail: E 3 ft at 10 seconds, becoming E 3 ft at 10 seconds and S 2 ft at 6 seconds. Showers likely in the morning, then showers with a slight chance of tstms in the afternoon. Vsby 1 to 3 NM. .FRI NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and E 3 ft at 10 seconds. Showers. Vsby 1 to 3 NM. .SAT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 10 seconds. Showers. .SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 5 seconds. Showers likely in the evening, then a chance of rain after midnight. .SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 9 seconds. A chance of rain. .SUN NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 3 ft. A chance of rain. .MON...N winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of rain. .MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft. .TUE...NE winds 10 to 15 kt. Seas 4 to 5 ft. .TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. $$