Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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341 FZUS52 KCHS 130503 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 103 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 AMZ300-131730- 103 AM EDT Mon May 13 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will exit the coast early Monday with a storm system approaching from the west. An active weather pattern will start on Monday with multiple rounds of showers and thunderstorms possible through Wednesday. $$ AMZ330-131730- Charleston Harbor- 103 AM EDT Mon May 13 2024 .REST OF TONIGHT...SW winds 5 kt. .MON...SE winds 5 kt, becoming S in the afternoon. A chance of showers in the afternoon. .MON NIGHT...S winds 10 kt, increasing to 15 kt with gusts to 20 kt after midnight. A slight chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...S winds 15 kt with gusts to 20 kt. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 kt with gusts to 20 kt. A chance of tstms. Showers. .WED...SW winds 10 to 15 kt with gusts to 20 kt. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. A slight chance of showers and tstms in the evening. .THU...NW winds 10 kt. .THU NIGHT...SE winds 5 to 10 kt. .FRI...SE winds 5 to 10 kt. A chance of showers and tstms. .FRI NIGHT...S winds 10 kt. A chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 degrees. $$ AMZ350-131730- Waters from South Santee River to Edisto Beach SC out 20 NM- 103 AM EDT Mon May 13 2024 .REST OF TONIGHT...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...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 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 with gusts to 25 kt. Seas 4 to 5 ft, building to 4 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 4 to 6 ft, building to 5 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. A slight chance of showers and tstms in the evening. .THU...NW winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...SE 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. $$ AMZ352-131730- Waters from Edisto Beach SC to Savannah GA out 20 NM- 103 AM EDT Mon May 13 2024 .REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. .MON...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 8 seconds. A chance of showers in the afternoon. .MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: SE 3 ft at 4 seconds and E 1 foot at 8 seconds, becoming S 4 ft at 5 seconds and E 1 foot at 8 seconds. A slight chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...S winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 7 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds and E 1 foot at 8 seconds. A chance of tstms. Showers. .WED...SW winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds. A chance of tstms. Showers likely, mainly in the morning. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers and tstms in the evening. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. .FRI...SE winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-131730- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 103 AM EDT Mon May 13 2024 .REST OF TONIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 3 seconds. .MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. Seas 2 ft. Wave Detail: 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 with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 4 seconds and E 1 foot at 8 seconds. Showers likely with a slight chance of tstms. .TUE...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: SE 4 ft at 7 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 7 seconds. A chance of tstms. Showers. .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. A slight chance of showers and tstms in the evening. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...SE 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. $$ AMZ374-131730- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 103 AM EDT Mon May 13 2024 .REST OF TONIGHT...S winds 10 kt, decreasing to 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 8 seconds and SW 1 foot at 2 seconds. .MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and NE 2 ft at 8 seconds. A chance of showers in the afternoon. .MON NIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft at 5 seconds and E 2 ft at 8 seconds, becoming SE 5 ft at 6 seconds. Showers likely with a slight chance of tstms. .TUE...S winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: SE 5 ft at 6 seconds and E 1 foot at 9 seconds. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft, building to 5 to 6 ft after midnight. Wave Detail: S 5 ft at 7 seconds and E 1 foot at 9 seconds. A chance of tstms. Showers. .WED...SW winds 15 to 20 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft in the afternoon. Wave Detail: S 5 ft at 7 seconds and E 1 foot at 9 seconds. A chance of showers and tstms. .WED NIGHT...W winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. A slight chance of showers and tstms. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms. .FRI...S winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers and tstms likely. Winds and seas higher in and near tstms. $$