FZUS52 KCHS 131504 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 1104 AM EDT Mon May 13 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 AMZ300-140415- 1104 AM EDT Mon May 13 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A storm system will bring active weather through Wednesday. High pressure will build in late week before another storm system moves through this weekend. $$ AMZ330-140415- Charleston Harbor- 1104 AM EDT Mon May 13 2024 .REST OF TODAY...SE winds 5 kt, becoming S 5 to 10 kt this afternoon. A chance of showers late. .TONIGHT...S winds 10 to 15 kt. A chance of showers in the evening, then showers likely with a slight chance of tstms after midnight. .TUE...S winds 10 to 15 kt with gusts to 20 kt. Showers with a chance of tstms. .TUE NIGHT...SW winds 10 to 15 kt. A chance of tstms. Showers. .WED...SW winds 10 to 15 kt. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. A chance of showers and tstms in the evening. .THU...NW winds 10 kt. .THU NIGHT...SE winds 5 to 10 kt. .FRI...S winds 5 to 10 kt. A chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt. A chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 degrees. $$ AMZ350-140415- Waters from South Santee River to Edisto Beach SC out 20 NM- 1104 AM EDT Mon May 13 2024 .REST OF TODAY...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 late. .TONIGHT...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 9 seconds, becoming S 4 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers in the evening, then showers likely with a slight chance of tstms after midnight. .TUE...S winds 15 to 20 kt. Seas 4 to 5 ft, building to 5 to 6 ft in the afternoon. Wave Detail: S 5 ft at 6 seconds and E 1 foot at 9 seconds, becoming S 5 ft at 7 seconds and E 1 foot 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, subsiding to 4 to 6 ft after midnight. Wave Detail: S 6 ft at 7 seconds and E 1 foot at 9 seconds, becoming S 6 ft at 8 seconds and E 1 foot at 9 seconds. A chance of tstms. Showers. .WED...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft in the afternoon. Wave Detail: S 6 ft at 8 seconds and E 1 foot at 9 seconds, becoming S 5 ft at 8 seconds. A chance of tstms. Showers likely, mainly in the morning. .WED NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: S 5 ft at 8 seconds, becoming S 4 ft at 8 seconds. A chance of showers and tstms in the evening. .THU...NW winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...S 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. Showers and tstms likely. Winds and seas higher in and near tstms. $$ AMZ352-140415- Waters from Edisto Beach SC to Savannah GA out 20 NM- 1104 AM EDT Mon May 13 2024 .REST OF TODAY...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 8 seconds. A chance of showers late. .TONIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 3 ft at 4 seconds and E 1 foot at 8 seconds, becoming S 4 ft at 5 seconds and E 1 foot at 9 seconds. A slight chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...S winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 7 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds. A chance of tstms. Showers. .WED...SW winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 8 seconds. A chance of tstms. Showers likely, mainly in the morning. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. A slight chance of showers and tstms in the evening. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. .FRI...S winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers and tstms likely. Winds and seas higher in and near tstms. $$ AMZ354-140415- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 1104 AM EDT Mon May 13 2024 .REST OF TODAY...SE winds 10 to 15 kt. Seas 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at 8 seconds. A slight chance of showers early this afternoon. A chance of showers with a slight chance of tstms late. .TONIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft at 4 seconds and E 1 foot at 8 seconds, becoming SE 4 ft at 5 seconds and E 1 foot at 8 seconds. A slight chance of tstms. Rain likely in the evening, then showers likely after midnight. .TUE...S winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 7 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. A chance of tstms. Showers likely. .WED...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. A chance of tstms. Showers likely, mainly in the morning. .WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds. A slight chance of showers and tstms in the evening. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. .FRI...S winds 5 to 10 kt. Seas 2 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. $$ AMZ374-140415- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 1104 AM EDT Mon May 13 2024 .REST OF TODAY...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers late. .TONIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 4 ft at 5 seconds and E 2 ft at 8 seconds, becoming E 5 ft at 7 seconds. A slight chance of tstms. Rain likely in the evening, then showers likely after midnight. .TUE...S winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: SE 5 ft at 6 seconds and E 1 foot at 9 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 5 ft, then 4 to 6 ft after midnight. Wave Detail: S 5 ft at 7 seconds and E 1 foot at 9 seconds, then Wave Detail: S 5 ft at 7 seconds and E 1 foot at 10 seconds. A chance of tstms. Showers. .WED...SW winds 15 to 20 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft in the afternoon. Wave Detail: S 5 ft at 7 seconds and E 1 foot at 9 seconds, becoming S 5 ft at 8 seconds and E 1 foot at 9 seconds. A chance of tstms. Showers, mainly in the morning. .WED NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and W 2 ft at 4 seconds. A slight chance of showers and tstms. .THU...W winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. .FRI...S winds 10 kt. Seas 2 ft. A chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$