FZUS52 KCHS 102156 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 556 PM EDT Fri May 10 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 AMZ300-111015- 556 PM EDT Fri May 10 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A cold front will push through the area tonight. High pressure will prevail for the weekend into early next week. A storm system could affect the area by the middle of next week. $$ AMZ330-111015- Charleston Harbor- 556 PM EDT Fri May 10 2024 .TONIGHT...W winds 15 to 20 kt, becoming N 10 to 15 kt late this evening. Waves 1 to 2 ft. A chance of showers and tstms late this evening. .SAT...N winds 10 kt, becoming SE in the afternoon. .SAT NIGHT...SW winds 5 kt. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. .SUN NIGHT...SW winds 5 to 10 kt in the evening, becoming light and variable. .MON...SE winds 5 to 10 kt. A slight chance of showers in the afternoon. .MON NIGHT...S winds 10 to 15 kt. A chance of showers in the evening, then showers likely with a slight chance of tstms after midnight. .TUE...S winds 15 kt. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 kt. Showers likely with a chance of tstms. .WED...SW winds 15 kt. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. A slight chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 77 degrees. $$ AMZ350-111015- Waters from South Santee River to Edisto Beach SC out 20 NM- 556 PM EDT Fri May 10 2024 .TONIGHT...W winds 15 to 20 kt, becoming N late. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and E 1 foot at 10 seconds. A chance of showers and tstms late this evening. .SAT...N winds 15 to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and NE 3 ft at 10 seconds. .SAT NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 2 ft at 6 seconds. .SUN...W winds 10 to 15 kt, becoming SW 5 to 10 kt in the afternoon. Seas 2 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at 7 seconds. .SUN NIGHT...SW winds 5 to 10 kt, becoming S after midnight. Seas 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 9 seconds. .MON...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 9 seconds. A slight chance of showers in the afternoon. .MON NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 2 ft, building to 3 to 4 ft after midnight. Showers likely with a slight chance of tstms. .TUE...S winds 15 to 20 kt. Seas 4 to 5 ft. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 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. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ352-111015- Waters from Edisto Beach SC to Savannah GA out 20 NM- 556 PM EDT Fri May 10 2024 .TONIGHT...W winds 15 to 20 kt, becoming N after midnight. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds, becoming NW 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers and tstms late this evening. .SAT...N winds 15 to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and NE 3 ft at 9 seconds. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 6 seconds. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 ft. Wave Detail: W 1 foot at 3 seconds and E 1 foot at 7 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 7 seconds. .MON...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 8 seconds. A chance of showers with a slight chance of tstms in the afternoon. .MON NIGHT...S winds 10 to 15 kt with gusts to 25 kt. Seas 2 ft, building to 3 to 4 ft after midnight. Showers likely with a slight chance of tstms. .TUE...S winds 15 kt. Seas 4 to 5 ft. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Showers likely with a chance of tstms. .WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-111015- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 556 PM EDT Fri May 10 2024 .TONIGHT...W winds 15 to 20 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at 10 seconds. A slight chance of showers and tstms after midnight. .SAT...N winds 10 to 15 kt with gusts to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and NE 3 ft at 9 seconds. .SAT NIGHT...S winds 5 kt, becoming W after midnight. Seas 2 ft. Wave Detail: NE 2 ft at 6 seconds. .SUN...NW winds 10 kt, becoming SW in the afternoon. Seas 2 ft. Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 6 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE 1 foot at 7 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 2 seconds and E 1 foot at 8 seconds, becoming SE 2 ft at 3 seconds and E 1 foot 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 2 to 3 ft, building to 3 to 4 ft after midnight. A slight chance of tstms. Showers. .TUE...S winds 15 kt. Seas 4 to 5 ft. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Showers likely with a chance of tstms. .WED...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. .WED NIGHT...W winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-111015- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 556 PM EDT Fri May 10 2024 .TONIGHT...W winds 15 to 20 kt, becoming N after midnight. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: W 4 ft at 5 seconds and SE 1 foot at 9 seconds, becoming NW 3 ft at 4 seconds and SE 1 foot at 9 seconds. A slight chance of showers and tstms after midnight. .SAT...N winds 15 kt with gusts to 20 kt, becoming NE 5 to 10 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: NW 3 ft at 4 seconds and E 3 ft at 9 seconds, becoming N 3 ft at 5 seconds. .SAT NIGHT...E winds 5 kt, becoming W after midnight. Seas 2 ft. Wave Detail: N 2 ft at 6 seconds. .SUN...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 7 seconds and W 1 foot at 3 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 7 seconds and W 1 foot at 3 seconds. .MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft. Wave Detail: SE 2 ft at 4 seconds and NE 2 ft at 8 seconds. A chance of showers with a slight chance of tstms in the afternoon. .MON NIGHT...SE winds 15 kt with gusts to 25 kt. Seas 2 to 3 ft, building to 4 to 5 ft after midnight. A slight chance of tstms. Showers. .TUE...S winds 15 kt. Seas 4 to 6 ft. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 5 to 6 ft. Showers with a chance of tstms. .WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$