Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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538 FZUS52 KCHS 192336 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 736 PM EDT Sun May 19 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 AMZ300-201215- 736 PM EDT Sun May 19 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will build in from the north tonight and persist through most of this week. A series of upper level disturbances will impact the area next weekend. $$ AMZ330-201215- Charleston Harbor- 736 PM EDT Sun May 19 2024 .TONIGHT...NE winds 10 to 15 kt. A slight chance of showers and tstms this evening. .MON...NE winds 10 to 15 kt with gusts to 20 kt. .MON NIGHT...NE winds 10 kt. .TUE...NE winds 10 kt, increasing to 15 kt with gusts to 20 kt in the afternoon. .TUE NIGHT...E winds 5 to 10 kt. .WED...NE winds 5 to 10 kt, becoming SE in the afternoon. .WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. .THU...SW winds 5 to 10 kt. .THU NIGHT...S winds 5 to 10 kt. .FRI...SW winds 5 to 10 kt. A slight chance of showers and tstms. .FRI NIGHT...S winds 5 to 10 kt. A slight chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 degrees. $$ AMZ350-201215- Waters from South Santee River to Edisto Beach SC out 20 NM- 736 PM EDT Sun May 19 2024 .TONIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to 5. Wave Detail: NE 3 ft at 4 seconds and SE 1 foot at 9 seconds, becoming NE 4 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of showers with a slight chance of tstms early this evening, then a slight chance of showers and tstms late this evening. .MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 6 seconds and S 1 foot at 6 seconds. .MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: E 5 ft at 7 seconds, becoming E 4 ft at 7 seconds. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 3 ft at 7 seconds. .WED...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .WED NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 2 ft. .THU...SW winds 5 to 10 kt. Seas 2 ft. .THU NIGHT...S winds 10 kt. Seas 2 ft. .FRI...SW winds 10 kt. Seas 2 ft. A slight chance of showers and tstms. .FRI NIGHT...S winds 10 kt. Seas 2 ft. A chance of showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$ AMZ352-201215- Waters from Edisto Beach SC to Savannah GA out 20 NM- 736 PM EDT Sun May 19 2024 .TONIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 4 ft. Wave Detail: NE 2 ft at 3 seconds and SE 1 foot at 9 seconds, becoming NE 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers with a slight chance of tstms this evening, then a slight chance of showers and tstms after midnight. .MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 6 seconds and S 1 foot at 5 seconds. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 3 ft at 7 seconds. .WED...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 ft. .THU...SW winds 5 to 10 kt. Seas 2 ft. .THU NIGHT...S winds 10 kt. Seas 2 ft. .FRI...S winds 10 kt. Seas 2 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-201215- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 736 PM EDT Sun May 19 2024 .TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt, increasing to 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 4 ft. Wave Detail: NE 2 ft at 3 seconds and E 1 foot at 9 seconds, becoming NE 3 ft at 4 seconds and E 1 foot at 9 seconds. A chance of showers with a slight chance of tstms this evening, then a slight chance of showers and tstms after midnight. .MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 5 seconds. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds. .TUE...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .WED...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 ft. .THU...S winds 5 to 10 kt. Seas 2 ft. .THU NIGHT...S winds 10 kt. Seas 2 to 3 ft. .FRI...S winds 10 kt. Seas 2 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-201215- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 736 PM EDT Sun May 19 2024 .TONIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 4 ft. Wave Detail: NE 2 ft at 3 seconds and E 1 foot at 9 seconds, becoming NE 4 ft at 5 seconds and E 1 foot at 9 seconds. A slight chance of tstms. A chance of showers until early morning, then a slight chance of showers late. .MON...NE winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, building to 5 to 6 ft in the afternoon. Wave Detail: NE 5 ft at 6 seconds. A slight chance of showers in the morning. .MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 7 seconds. A slight chance of showers. .TUE...NE winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 7 seconds. A slight chance of showers. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: NE 5 ft at 7 seconds, becoming E 4 ft at 7 seconds. .WED...NE winds 5 kt. Seas 3 ft. Wave Detail: E 3 ft at 7 seconds. .WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 kt. Seas 2 to 3 ft. .FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$