Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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540 FZUS52 KCHS 111859 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 259 PM EDT Sat May 11 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 AMZ300-120715- 259 PM EDT Sat May 11 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will prevail into Monday. A storm system will affect the area by the middle of the week. Another system could arrive later in the week. $$ AMZ330-120715- Charleston Harbor- 259 PM EDT Sat May 11 2024 .TONIGHT...SE winds 5 to 10 kt early, becoming SW 5 kt later this evening, then W late. .SUN...W winds 5 to 10 kt. .SUN NIGHT...SW winds 5 to 10 kt. .MON...S winds 5 to 10 kt. .MON NIGHT...S winds 10 to 15 kt. A slight chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...S winds 15 kt with gusts to 20 kt. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 kt with gusts to 20 kt. A chance of tstms. Showers. .WED...SW winds 15 kt. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. .THU...W winds 10 kt. .THU NIGHT...S winds 10 kt. A slight chance of showers. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 degrees. $$ AMZ350-120715- Waters from South Santee River to Edisto Beach SC out 20 NM- 259 PM EDT Sat May 11 2024 .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 to 2 ft. Wave Detail: NE 2 ft at 5 seconds and SW 1 foot at 2 seconds. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and W 1 foot at 3 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. .MON...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 4 seconds and E 1 foot at 8 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 1 foot at 9 seconds. A slight chance of tstms. A chance of showers in the evening, then showers after midnight. .TUE...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 6 seconds and E 1 foot at 9 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Showers with a chance of tstms. .WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of showers and tstms. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 kt. Seas 2 to 3 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$ AMZ352-120715- Waters from Edisto Beach SC to Savannah GA out 20 NM- 259 PM EDT Sat May 11 2024 .TONIGHT...S winds 5 kt, becoming W after midnight. Seas 1 to 2 ft. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 4 seconds. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 ft. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 5 seconds. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 5 seconds. .MON...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 8 seconds. A slight chance of showers in the afternoon. .MON NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 8 seconds, becoming S 4 ft at 5 seconds and E 1 foot at 9 seconds. A slight chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...S winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 9 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Showers with a chance of tstms. .WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. .THU...W winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 kt. Seas 2 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$ AMZ354-120715- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 259 PM EDT Sat May 11 2024 .TONIGHT...SE winds 5 kt, becoming W after midnight. Seas 1 to 2 ft. Wave Detail: NE 2 ft at 4 seconds and SE 1 foot at 8 seconds. .SUN...NW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 ft. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 5 seconds. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 3 seconds and NE 1 foot at 5 seconds. .MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 8 seconds, becoming SE 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers with a slight chance of tstms in the afternoon. .MON NIGHT...SE winds 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: SE 3 ft at 4 seconds and E 1 foot at 8 seconds, becoming S 4 ft at 5 seconds and E 1 foot at 8 seconds. A slight chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...S winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds and E 1 foot at 9 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. A chance of tstms. Showers. .WED...SW winds 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. .THU...W winds 5 to 10 kt. Seas 2 ft. .THU NIGHT...S winds 10 kt. Seas 2 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$ AMZ374-120715- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 259 PM EDT Sat May 11 2024 .TONIGHT...E winds 5 kt, becoming W after midnight. Seas 2 ft. Wave Detail: N 2 ft at 5 seconds and SE 1 foot at 8 seconds. .SUN...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 6 seconds and SE 2 ft at 9 seconds. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds and NE 2 ft at 8 seconds. A slight chance of showers in the afternoon. .MON NIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds and E 2 ft at 8 seconds. A slight chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 6 seconds and E 2 ft at 9 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Showers with a chance of tstms. .WED...SW winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of showers and tstms. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 kt. Seas 2 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$