Coastal Waters Forecast
Issued by NWS Charleston, SC

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292 FZUS52 KCHS 171935 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 335 PM EDT Mon Jun 17 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 AMZ300-180830- 335 PM EDT Mon Jun 17 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will extend across the region through early next week. A tough of low pressure could approach the Southeast U.S coast by late this week. $$ AMZ330-180830- Charleston Harbor- 335 PM EDT Mon Jun 17 2024 .TONIGHT...E winds 10 to 15 kt with gusts to 20 kt early. .TUE...E winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Waves 1 to 2 ft. A slight chance of showers and tstms in the afternoon. .TUE NIGHT...E winds 10 to 15 kt. .WED...E winds 10 to 15 kt with gusts to 20 kt. A slight chance of showers and tstms. .WED NIGHT...E winds 15 kt. A slight chance of showers and tstms. .THU...NE winds 15 kt with gusts to 20 kt. A slight chance of showers and tstms. .THU NIGHT...E winds 10 to 15 kt with gusts to 20 kt, becoming NE 5 to 10 kt after midnight. A slight chance of tstms. A slight chance of showers in the evening, then a chance of showers after midnight. .FRI...NE winds 5 to 10 kt. A chance of showers and tstms. .FRI NIGHT...SE winds 5 to 10 kt. A slight chance of showers and tstms. .SAT...S winds 5 to 10 kt. A chance of showers and tstms. .SAT NIGHT...S winds 5 to 10 kt. A slight chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 84 degrees. $$ AMZ350-180830- Waters from South Santee River to Edisto Beach SC out 20 NM- 335 PM EDT Mon Jun 17 2024 .TONIGHT...E winds 10 to 15 kt with gusts to 20 kt early. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 foot at 12 seconds. .TUE...E winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: E 4 ft at 7 seconds and SE 1 foot at 12 seconds. A slight chance of showers and tstms in the afternoon. .TUE NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 5 ft. Wave Detail: E 5 ft at 7 seconds and SE 1 foot at 12 seconds. A slight chance of showers and tstms. .WED...E winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, building to 4 to 6 ft in the afternoon. Wave Detail: E 5 ft at 8 seconds, becoming E 6 ft at 8 seconds. A slight chance of showers and tstms. .WED NIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of showers and tstms. .THU...E winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of showers and tstms. .THU NIGHT...E winds 15 to 20 kt with gusts to 25 kt, becoming NE 10 to 15 kt after midnight. Seas 5 to 6 ft. A chance of showers with a slight chance of tstms. .FRI...NE winds 10 kt. Seas 5 to 6 ft. A chance of showers and tstms. .FRI NIGHT...SE winds 5 to 10 kt. Seas 4 to 6 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt. Seas 4 to 5 ft. A chance of showers and tstms. .SAT NIGHT...S winds 10 kt. Seas 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ352-180830- Waters from Edisto Beach SC to Savannah GA out 20 NM- 335 PM EDT Mon Jun 17 2024 .TONIGHT...E winds 15 kt with gusts to 20 kt early. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 foot at 12 seconds. .TUE...E winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 foot at 12 seconds. A slight chance of tstms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .TUE NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 5 ft. Wave Detail: E 5 ft at 7 seconds and SE 1 foot at 12 seconds. A slight chance of showers and tstms. .WED...E winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, building to 5 to 6 ft in the afternoon. Wave Detail: E 5 ft at 8 seconds, becoming E 6 ft at 8 seconds. A chance of showers with a slight chance of tstms. .WED NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A chance of showers with a slight chance of tstms. .THU...E winds 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A chance of showers with a slight chance of tstms. .THU NIGHT...E winds 15 to 20 kt with gusts to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 5 to 6 ft, subsiding to 4 to 6 ft after midnight. A chance of showers with a slight chance of tstms. .FRI...NE winds 10 kt. Seas 4 to 5 ft. A chance of showers and tstms. .FRI NIGHT...SE winds 5 to 10 kt. Seas 4 to 5 ft. A chance of showers and tstms. .SAT...SE winds 5 to 10 kt. Seas 4 to 5 ft. A chance of showers and tstms. .SAT NIGHT...S winds 10 kt. Seas 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-180830- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 335 PM EDT Mon Jun 17 2024 .TONIGHT...E winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 foot at 12 seconds. .TUE...E winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: E 4 ft at 6 seconds and E 1 foot at 12 seconds. A slight chance of tstms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .TUE NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 7 seconds and E 1 foot at 12 seconds. A chance of showers with a slight chance of tstms. .WED...E winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, building to 5 to 6 ft in the afternoon. Wave Detail: E 5 ft at 8 seconds, becoming E 6 ft at 8 seconds. A chance of showers with a slight chance of tstms. .WED NIGHT...E winds 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A chance of showers with a slight chance of tstms. .THU...E winds 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A chance of showers with a slight chance of tstms. .THU NIGHT...E winds 15 to 20 kt with gusts to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 5 to 6 ft, subsiding to 4 to 6 ft after midnight. A chance of showers with a slight chance of tstms. .FRI...NE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers and tstms. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers and tstms. .SAT...SE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers and tstms. .SAT NIGHT...S winds 10 kt. Seas 3 to 4 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-180830- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 335 PM EDT Mon Jun 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH LATE FRIDAY NIGHT... .TONIGHT...E winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 7 seconds and E 1 foot at 12 seconds. A slight chance of showers late. .TUE...E winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 7 seconds and E 1 foot at 12 seconds. A chance of showers with a slight chance of tstms. .TUE NIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 7 seconds and E 1 foot at 12 seconds. A chance of showers with a slight chance of tstms. .WED...E winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A chance of showers with a slight chance of tstms. .WED NIGHT...E winds 20 kt with gusts to 25 kt. Seas 6 to 7 ft. Wave Detail: E 7 ft at 8 seconds. A chance of showers with a slight chance of tstms. .THU...E winds 20 kt with gusts to 25 kt. Seas 6 to 7 ft. Wave Detail: E 7 ft at 8 seconds. A chance of showers with a slight chance of tstms. .THU NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 6 to 7 ft, subsiding to 5 to 7 ft after midnight. A chance of showers with a slight chance of tstms. .FRI...NE winds 10 to 15 kt. Seas 5 to 6 ft. A chance of showers and tstms. .FRI NIGHT...SE winds 5 to 10 kt. Seas 5 to 6 ft. A chance of showers and tstms. .SAT...SE winds 5 to 10 kt. Seas 4 to 6 ft. A chance of showers and tstms. .SAT NIGHT...S winds 10 kt. Seas 3 to 4 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$