FZUS52 KCHS 190607 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 207 AM EDT Tue May 19 2026 South Santee River SC to Altamaha Sound GA out 60 NM, including Charleston Harbor and Grays Reef National Marine Sanctuary AMZ300-192015- 207 AM EDT Tue May 19 2026 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will extend across the region before a cold front approaches the area near the end of the week. $$ AMZ340-192015- Charleston Harbor- 207 AM EDT Tue May 19 2026 .REST OF TONIGHT...SE winds 5 kt. .TUE...SE winds 5 kt, increasing to 10 to 15 kt in the afternoon. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. .WED...E winds 5 kt, becoming SE in the afternoon. .WED NIGHT...S winds 5 to 10 kt, diminishing to 5 kt after midnight. .THU...S winds 5 kt, increasing to 5 to 10 kt in the afternoon. .THU NIGHT...S winds 5 to 10 kt, diminishing to 5 kt after midnight. A slight chance of showers and tstms after midnight. .FRI...SE winds 5 to 10 kt. A chance of showers with a slight chance of tstms. .FRI NIGHT...SE winds 5 to 10 kt. .SAT...S winds 5 to 10 kt. A slight chance of showers and tstms. .SAT NIGHT...S winds 5 to 10 kt. A slight chance of showers. Winds and waves higher in and near tstms. $$ AMZ360-192015- Coastal waters from South Santee River to Edisto Beach SC out 20 NM- 207 AM EDT Tue May 19 2026 .REST OF TONIGHT...SE winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE...SE winds 5 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .WED...E winds 5 kt, becoming SE in the afternoon. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds. .THU...SW winds 5 kt, becoming S in the afternoon. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. .THU NIGHT...S winds 5 to 10 kt. Seas 3 ft. A chance of showers with a slight chance of tstms after midnight. .FRI...SE winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. .FRI NIGHT...SE winds 10 kt. Seas 3 to 4 ft. .SAT...S winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. .SAT NIGHT...S winds 10 kt. Seas 3 to 4 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$ AMZ362-192015- Coastal waters from Edisto Beach SC to Savannah GA out 20 NM- 207 AM EDT Tue May 19 2026 .REST OF TONIGHT...SE winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE NIGHT...SE winds 5 to 10 kt, diminishing to 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .WED...NE winds 5 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. .THU...S winds 5 kt, becoming SE in the afternoon. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. .THU NIGHT...SE winds 5 to 10 kt. Seas 3 ft. .FRI...SE winds 5 to 10 kt. Seas 3 ft. A slight chance of showers and tstms. .FRI NIGHT...SE winds 10 kt. Seas 3 to 4 ft. .SAT...S winds 5 to 10 kt. Seas 3 to 4 ft. .SAT NIGHT...S winds 10 kt. Seas 3 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$ AMZ364-192015- Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary- 207 AM EDT Tue May 19 2026 .REST OF TONIGHT...SE winds 10 kt, diminishing to 5 kt late. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at 8 seconds. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail:SE 3 ft at 8 seconds and E 1 foot at 9 seconds. .TUE NIGHT...E winds 10 kt, becoming SE after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at 9 seconds. .WED...E winds 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and E 1 foot at 9 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at 9 seconds. .THU...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at 9 seconds. .THU NIGHT...SE winds 10 kt. Seas 3 ft. .FRI...SE winds 10 to 15 kt. Seas 3 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 ft. .SAT...SE winds 10 to 15 kt. Seas 3 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 ft. $$ AMZ380-192015- Waters from South Santee River SC to Edisto Beach SC extending from 20 to 60 NM- 207 AM EDT Tue May 19 2026 .REST OF TONIGHT...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds. .WED...SE winds 5 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A slight chance of showers after midnight. .THU...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A slight chance of tstms in the morning. A slight chance of showers. .THU NIGHT...S winds 10 kt. Seas 3 to 4 ft. A slight chance of showers in the evening, then a chance of showers and tstms after midnight. .FRI...SE winds 5 to 10 kt. Seas 4 ft. A chance of showers with a slight chance of tstms. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 ft. A chance of showers with a slight chance of tstms. .SAT...S winds 10 kt. Seas 4 ft. A chance of showers with a slight chance of tstms. .SAT NIGHT...S winds 10 to 15 kt. Seas 4 ft. A chance of showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$ AMZ382-192015- Waters from Edisto Beach SC to Savannah GA extending from 20 to 60 NM- 207 AM EDT Tue May 19 2026 .REST OF TONIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .TUE...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. .WED...E winds 5 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and E 2 ft at 9 seconds. .THU...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and E 2 ft at 9 seconds. A slight chance of showers in the morning. .THU NIGHT...SE winds 10 kt. Seas 3 to 4 ft. A chance of showers with a slight chance of tstms after midnight. .FRI...SE winds 5 to 10 kt. Seas 4 ft. A chance of showers with a slight chance of tstms. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of showers and tstms. .SAT...S winds 10 kt. Seas 4 ft. A slight chance of showers. .SAT NIGHT...S winds 10 to 15 kt. Seas 4 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ384-192015- Waters from Savannah GA to Altamaha Sound GA extending from 20 to 60 NM- 207 AM EDT Tue May 19 2026 .REST OF TONIGHT...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at 9 seconds. .TUE...E winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at 9 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at 9 seconds. .WED...E winds 5 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and E 1 foot at 9 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas 3to 4 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at 9 seconds. .THU...S winds 5 kt, becoming SE in the afternoon. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and E 1 foot at 9 seconds. .THU NIGHT...SE winds 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms after midnight. .FRI...SE winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...S winds 5 to 10 kt. Seas 3 to 4 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$