Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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256 FZUS52 KCHS 201857 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 257 PM EDT Sat Jul 20 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 AMZ300-210930- 257 PM EDT Sat Jul 20 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will remain over the western Atlantic while a surface trough lingers inland. $$ AMZ330-210930- Charleston Harbor- 257 PM EDT Sat Jul 20 2024 .TONIGHT...S winds 10 to 15 kt early, then SW 5 to 10 kt. A chance of showers and tstms. .SUN...SW winds 5 kt, becoming S 10 kt in the afternoon. A slight chance of showers and tstms in the morning, then a chance of showers and tstms in the afternoon. .SUN NIGHT...S winds 10 kt. A chance of showers and tstms. .MON...SW winds 10 to 15 kt. A chance of showers and tstms. .MON NIGHT...S winds 10 to 15 kt. A chance of showers and tstms. .TUE...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. A chance of showers and tstms. .TUE NIGHT...S winds 10 kt. A chance of showers and tstms. .WED...S winds 10 to 15 kt. Showers and tstms likely. .WED NIGHT...S winds 10 to 15 kt. Showers and tstms likely. .THU...S winds 10 to 15 kt. Showers and tstms likely. .THU NIGHT...S winds 10 kt. A chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 87 degrees. $$ AMZ350-210930- Waters from South Santee River to Edisto Beach SC out 20 NM- 257 PM EDT Sat Jul 20 2024 .TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds. A chance of showers and tstms. .SUN...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds. A slight chance of showers and tstms. .SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and S 3 ft at 5 seconds. A chance of showers and tstms in the evening, then showers and tstms likely after midnight. .TUE...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. Showers and tstms likely, mainly in the morning. .TUE NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Showers and tstms likely. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms likely. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms likely. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms likely. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms likely. Winds and seas higher in and near tstms. $$ AMZ352-210930- Waters from Edisto Beach SC to Savannah GA out 20 NM- 257 PM EDT Sat Jul 20 2024 .TONIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers and tstms. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. A slight chance of showers and tstms in the morning, then a chance of showers and tstms in the afternoon. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and S 3 ft at 5 seconds. A chance of showers and tstms. .TUE...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms likely. .WED...S winds 10 kt. Seas 3 to 4 ft. Showers and tstms likely. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms likely. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-210930- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 257 PM EDT Sat Jul 20 2024 .TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers and tstms until early morning, then a slight chance of showers and tstms late. .SUN...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers and tstms in the afternoon. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers and tstms. .MON...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of showers and tstms. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 9 seconds. A chance of showers and tstms. .TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and SE 2 ft at 5 seconds. A chance of showers and tstms. .TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms likely. .WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. Showers and tstms likely. .THU...S winds 10 kt. Seas 3 ft. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-210930- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 257 PM EDT Sat Jul 20 2024 .TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers and tstms. .SUN...SW winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds. A slight chance of showers and tstms. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .MON...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .TUE...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of showers and tstms. .TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. .WED...S winds 10 kt. Seas 3 to 4 ft. Showers and tstms likely. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. .THU...S winds 10 kt. Seas 3 to 4 ft. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$