Coastal Waters Forecast
Issued by NWS Charleston, SC

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388 FZUS52 KCHS 301911 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 311 PM EDT Sun Jun 30 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 AMZ300-010815- 311 PM EDT Sun Jun 30 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A cold front will impact the area Monday into Tuesday before dissipating offshore. High pressure will return for the latter half of the week. $$ AMZ330-010815- Charleston Harbor- 311 PM EDT Sun Jun 30 2024 .TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. A slight chance of showers and tstms early this evening, then a chance of showers and tstms late this evening. .MON...S winds 5 to 10 kt. A slight chance of showers and tstms in the morning, then showers and tstms in the afternoon. .MON NIGHT...NE winds 10 to 15 kt. Showers and tstms, mainly in the evening. .TUE...NE winds 15 kt with gusts to 20 kt. A chance of showers and tstms. .TUE NIGHT...NE winds 10 to 15 kt. A chance of showers and tstms. .WED...NE winds 10 to 15 kt. A chance of showers and tstms. .WED NIGHT...E winds 5 to 10 kt, becoming SE after midnight. A chance of showers and tstms, mainly in the evening. .THU...E winds 5 to 10 kt. A slight chance of showers and tstms. .THU NIGHT...S winds 5 to 10 kt. .FRI...SW winds 5 to 10 kt. A slight chance of showers and tstms. .FRI NIGHT...S winds 5 to 10 kt. A slight chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 86 degrees. $$ AMZ350-010815- Waters from South Santee River to Edisto Beach SC out 20 NM- 311 PM EDT Sun Jun 30 2024 .TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms after midnight. .MON...SW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A slight chance of showers and tstms in the morning, then showers and tstms in the afternoon. .MON NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 8 seconds, becoming NE 2 ft at 3 seconds and S 1 foot at 5 seconds. Showers and tstms, mainly in the evening. .TUE...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 7 seconds and S 1 foot at 5 seconds. A chance of showers and tstms. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: E 4 ft at 7 seconds and S 1 foot at 5 seconds. A chance of showers and tstms. .WED...NE winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 7 seconds and S 1 foot at 4 seconds. A chance of showers and tstms. .WED NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. A slight chance of showers and tstms. .THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .THU NIGHT...S winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ352-010815- Waters from Edisto Beach SC to Savannah GA out 20 NM- 311 PM EDT Sun Jun 30 2024 .TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms after midnight. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 8 seconds. A slight chance of showers and tstms in the morning, then showers and tstms in the afternoon. .MON NIGHT...SE winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 8 seconds. Showers and tstms. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NE 2 ft at 3 seconds and S 2 ft at 5 seconds. Showers and tstms likely, mainly in the morning. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 8 seconds and NE 2 ft at 4 seconds. A chance of showers and tstms in the evening, then showers and tstms likely after midnight. .WED...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 7 seconds. Showers and tstms likely, mainly in the morning. .WED NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. A chance of showers and tstms. .THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-010815- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 311 PM EDT Sun Jun 30 2024 .TONIGHT...S winds 10 to 15 kt, becoming SW late. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers and tstms after midnight. A slight chance of showers and tstms late. .MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds. Showers and tstms in the afternoon. .MON NIGHT...S winds 10 kt, becoming E after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds. Showers and tstms, mainly in the evening. .TUE...NE winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft in the afternoon. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 8 seconds, becoming NE 2 ft at 3 seconds and SE 2 ft at 5 seconds. Showers and tstms likely. .TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 2 ft at 5 seconds and E 1 foot at 8 seconds, becoming NE 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers and tstms. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 foot at 4 seconds. A chance of showers and tstms. .WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .THU NIGHT...S winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-010815- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 311 PM EDT Sun Jun 30 2024 .TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers and tstms after midnight. A slight chance of showers and tstms late. .MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds. A slight chance of showers and tstms in the morning, then a chance of showers and tstms in the afternoon. .MON NIGHT...S winds 10 to 15 kt, becoming SE 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds. Showers and tstms likely. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft, building to 3 to 4 ft in the afternoon. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 8 seconds. Showers and tstms likely, mainly in the morning. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 7 seconds and S 2 ft at 5 seconds. A chance of showers and tstms in the evening, then showers and tstms likely after midnight. .WED...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 7 seconds and SE 2 ft at 8 seconds. Showers and tstms likely, mainly in the morning. .WED NIGHT...E winds 5 to 10 kt, becoming SE after midnight. Seas 3 to 4 ft. A chance of showers and tstms. .THU...NE winds 5 to 10 kt. Seas 3 ft. A chance of showers and tstms. .THU NIGHT...S winds 5 to 10 kt. Seas 3 ft. A slight chance of showers and tstms. .FRI...SW winds 10 kt. Seas 3 ft. A slight chance of showers and tstms. .FRI NIGHT...S winds 10 kt. Seas 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$