Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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349 FZUS52 KCHS 230101 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 901 PM EDT Sun Sep 22 2024 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 AMZ300-231330- 901 PM EDT Sun Sep 22 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will linger across the region through early week this week. Later this week, a tropical cyclone is forecast to move generally northward across the Gulf of Mexico, then possibly tracking inland across portions of the Deep South or Southeast U.S. late this week. $$ AMZ330-231330- Charleston Harbor- 901 PM EDT Sun Sep 22 2024 .TONIGHT...S winds 5 kt, becoming SW. .MON...S winds 5 to 10 kt. .MON NIGHT...S winds 5 to 10 kt. .TUE...S winds 5 to 10 kt. .TUE NIGHT...S winds 5 to 10 kt. .WED...SE winds 5 kt, increasing to 10 kt in the afternoon. .WED NIGHT...E winds 5 to 10 kt. A slight chance of showers and tstms. .THU...E winds 10 to 15 kt. A chance of showers with a slight chance of tstms. .THU NIGHT...SE winds 15 kt. Showers likely with a slight chance of tstms. .FRI...S winds 15 kt. Showers likely with a slight chance of tstms. .FRI NIGHT...S winds 10 to 15 kt. A chance of showers. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 80 degrees. $$ AMZ350-231330- Waters from South Santee River to Edisto Beach SC out 20 NM- 901 PM EDT Sun Sep 22 2024 .TONIGHT...S winds 5 to 10 kt, becoming SW. Seas 2 to 3 ft, subsiding to 1 to 2 ft. Wave Detail: E 3 ft at 10 seconds. .MON...W winds 5 kt, becoming S in the afternoon. Seas 1 to 2 ft. Wave Detail: E 2 ft at 9 seconds. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds. .TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds. A slight chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and S 1 foot at 3 seconds. .WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and S 2 ft at 4 seconds. .WED NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. A slight chance of showers and tstms. .THU...E winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers with a slight chance of tstms. .THU NIGHT...SE winds 20 to 25 kt. Seas 6 to 8 ft. Showers likely with a slight chance of tstms. .FRI...S winds 20 to 25 kt. Seas 6 to 8 ft. A chance of showers with a slight chance of tstms. .FRI NIGHT...S winds 15 to 20 kt. Seas 5 to 7 ft. A chance of showers. Winds and seas higher in and near tstms. $$ AMZ352-231330- Waters from Edisto Beach SC to Savannah GA out 20 NM- 901 PM EDT Sun Sep 22 2024 .TONIGHT...S winds 5 to 10 kt, becoming SW. Seas 2 to 3 ft, subsiding to 1 to 2 ft. Wave Detail: E 3 ft at 10 seconds. .MON...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: E 2 ft at 9 seconds. .MON NIGHT...S winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: E 2 ft at 9 seconds. .TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 10 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and S 1 foot at 3 seconds. .WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 11 seconds. .WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. .THU...E winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers with a slight chance of tstms. .THU NIGHT...SE winds 20 to 25 kt. Seas 6 to 8 ft. Showers likely with a slight chance of tstms. .FRI...S winds 20 to 25 kt. Seas 7 to 9 ft. Showers likely with a slight chance of tstms. .FRI NIGHT...S winds 15 to 20 kt. Seas 5 to 7 ft. A chance of showers. Winds and seas higher in and near tstms. $$ AMZ354-231330- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 901 PM EDT Sun Sep 22 2024 .TONIGHT...SE winds 5 to 10 kt, becoming SW. Seas 2 to 3 ft, subsiding to 1 to 2 ft. Wave Detail: E 3 ft at 10 seconds. .MON...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: E 2 ft at 9 seconds. .MON NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. .TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. .TUE NIGHT...SE winds 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SE 2 ft at 3 seconds. .WED...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 11 seconds. .WED NIGHT...SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. A slight chance of tstms. A slight chance of showers in the evening, then a chance of showers after midnight. .THU...SE winds 15 to 20 kt. Seas 5 to 7 ft. A chance of showers with a slight chance of tstms. .THU NIGHT...SE winds 20 to 25 kt. Seas 6 to 8 ft. Showers likely with a slight chance of tstms. .FRI...S winds 20 to 25 kt. Seas 6 to 8 ft. Showers likely with a slight chance of tstms. .FRI NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers. Winds and seas higher in and near tstms. $$ AMZ374-231330- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 901 PM EDT Sun Sep 22 2024 .TONIGHT...SE winds 5 to 10 kt, becoming S. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds. .MON...SW winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. .MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. .TUE...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 10 seconds. .TUE NIGHT...SE winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 11 seconds and SE 2 ft at 3 seconds. .WED...SE winds 10 to 15 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: E 4 ft at 11 seconds and SE 2 ft at 4 seconds. .WED NIGHT...SE winds 15 to 20 kt. Seas 4 to 5 ft, building to 4 to 6 ft after midnight. A slight chance of tstms. A slight chance of showers in the evening, then a chance of showers after midnight. .THU...SE winds 15 to 20 kt. Seas 6 to 8 ft. A chance of showers with a slight chance of tstms. .THU NIGHT...SE winds 20 to 25 kt. Seas 8 to 10 ft. Showers likely with a slight chance of tstms. .FRI...S winds 20 to 25 kt. Seas 8 to 10 ft. Showers likely with a slight chance of tstms. .FRI NIGHT...S winds 15 to 20 kt. Seas 6 to 8 ft. A chance of showers. Winds and seas higher in and near tstms. $$