Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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220 FZUS52 KCHS 111557 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 1157 AM 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 AMZ300-120415- 1157 AM EDT Sat May 11 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will prevail through the weekend into early next week. A storm system could affect the area by the middle of next week. $$ AMZ330-120415- Charleston Harbor- 1157 AM EDT Sat May 11 2024 .THIS AFTERNOON...NE winds 5 to 10 kt, becoming SE. .TONIGHT...SW winds 5 kt. .SUN...NW winds 5 to 10 kt, becoming W in the afternoon. .SUN NIGHT...SW winds 5 to 10 kt, becoming S after midnight. .MON...SE winds 5 to 10 kt. .MON NIGHT...S winds 10 to 15 kt. A chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...S winds 15 kt. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 kt. Showers and tstms likely. .WED...SW winds 15 kt. A slight chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 degrees. $$ AMZ350-120415- Waters from South Santee River to Edisto Beach SC out 20 NM- 1157 AM EDT Sat May 11 2024 .THIS AFTERNOON...NE winds 10 kt, becoming SE 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds and SW 1 foot at 5 seconds. .TONIGHT...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...NW winds 10 to 15 kt, becoming SW 5 to 10 kt in the afternoon. Seas 2 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at 7 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 foot at 4 seconds. .MON...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 9 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of tstms. A chance of showers in the evening, then showers after midnight. .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 5 ft. Showers and tstms. .WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. A slight 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. Winds and seas higher in and near tstms. $$ AMZ352-120415- Waters from Edisto Beach SC to Savannah GA out 20 NM- 1157 AM EDT Sat May 11 2024 .THIS AFTERNOON...NE winds 5 to 10 kt, becoming SE. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds and SW 1 foot at 4 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 6 seconds and W 1 foot at 2 seconds. .SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 ft. Wave Detail: W 1 foot at 3 seconds and E 1 foot at 7 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. .MON...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds. A slight chance of showers and tstms in the afternoon. .MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S 3 ft at 4 seconds and E 1 foot at 9 seconds, becoming S 4 ft at 5 seconds and E 1 foot at 9 seconds. A chance of tstms. A chance of showers in the evening, then showers after midnight. .TUE...S winds 15 kt. Seas 4 to 5 ft. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Showers and tstms likely. .WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. $$ AMZ354-120415- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 1157 AM EDT Sat May 11 2024 .THIS AFTERNOON...NE winds 5 to 10 kt, becoming E. Seas 2 ft. Wave Detail: N 2 ft at 5 seconds. .TONIGHT...S winds 5 kt, becoming W after midnight. 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 2 seconds and NE 1 foot at 6 seconds. .SUN NIGHT...S 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, 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 and 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 SE 4 ft at 5 seconds and E 1 foot at 9 seconds. A chance of tstms. Showers. .TUE...S winds 15 kt. Seas 3 to 4 ft. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Showers and tstms likely. .WED...SW winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. $$ AMZ374-120415- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 1157 AM EDT Sat May 11 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and NE 3 ft at 7 seconds. .TONIGHT...NE winds 5 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 6 seconds. .SUN...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 7 seconds and W 1 foot at 3 seconds. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 8 seconds and W 1 foot at 3 seconds. .MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers and tstms in the afternoon. .MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after midnight. Seas 2 to 3 ft, building to 4 ft after midnight. Wave Detail: SE 3 ft at 4 seconds and E 2 ft at 9 seconds, becoming SE 4 ft at 5 seconds and E 2 ft at 9 seconds. A chance of tstms. A chance of showers in the evening, then showers after midnight. .TUE...S winds 15 to 20 kt. Seas 4 to 5 ft. Showers with a chance of tstms. .TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers and tstms likely. .WED...SW winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers and tstms. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$