Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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115 FZUS52 KCHS 150445 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 1245 AM EDT Wed May 15 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 AMZ300-151715- 1245 AM EDT Wed May 15 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A cold front will move through late Wednesday, followed by high pressure into Friday. A storm system will affect the area this weekend, followed by high pressure from the north next week. $$ AMZ330-151715- Charleston Harbor- 1245 AM EDT Wed May 15 2024 .REST OF TONIGHT...SW winds 10 to 15 kt. A chance of showers and tstms. .WED...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Waves building to 1 to 2 ft. A chance of showers and tstms, mainly in the morning. .WED NIGHT...W winds 10 to 15 kt. .THU...W winds 5 to 10 kt. .THU NIGHT...SW winds 5 to 10 kt, becoming E after midnight. .FRI...E winds 5 to 10 kt, becoming SE in the afternoon. .FRI NIGHT...S winds 10 kt. A chance of showers. A slight chance of tstms after midnight. .SAT...S winds 10 to 15 kt. Showers likely with a chance of tstms. .SAT NIGHT...SW winds 10 to 15 kt. A chance of showers and tstms. .SUN...W winds 10 kt. A chance of showers and tstms. .SUN NIGHT...NW winds 5 to 10 kt. A chance of showers with a slight chance of tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 degrees. $$ AMZ350-151715- Waters from South Santee River to Edisto Beach SC out 20 NM- 1245 AM EDT Wed May 15 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... .REST OF TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 7 seconds. A chance of showers and tstms. .WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds. A chance of showers and tstms, mainly in the morning. .WED NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: S 5 ft at 7 seconds, becoming S 4 ft at 7 seconds. A slight chance of showers and tstms in the evening. .THU...NW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .THU NIGHT...SW winds 5 to 10 kt, becoming E after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds. .FRI...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 4 seconds. .FRI NIGHT...S winds 10 kt. Seas 2 ft. A chance of showers. A slight chance of tstms after midnight. .SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely with a chance of tstms. .SUN...W winds 10 kt. Seas 3 to 4 ft. A chance of showers and tstms. .SUN NIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$ AMZ352-151715- Waters from Edisto Beach SC to Savannah GA out 20 NM- 1245 AM EDT Wed May 15 2024 .REST OF TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. A chance of showers and tstms. .WED...SW winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 7 seconds. A chance of showers and tstms in the morning. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: S 4 ft at 7 seconds, becoming S 3 ft at 7 seconds. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .THU NIGHT...SW winds 5 to 10 kt, becoming SE after midnight. Seas 2 ft. Wave Detail: S 2 ft at 6 seconds. .FRI...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. .FRI NIGHT...S winds 10 kt. Seas 2 to 3 ft. A chance of showers. A slight chance of tstms after midnight. .SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. .SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. .SUN...W winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. .SUN NIGHT...W winds 10 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$ AMZ354-151715- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 1245 AM EDT Wed May 15 2024 .REST OF TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. A chance of showers and tstms. .WED...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds. A chance of showers and tstms in the morning. .WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: SE 3 ft at 7 seconds, becoming SE 3 ft at 7 seconds and W 2 ft at 2 seconds. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and W 2 ft at 3 seconds. .THU NIGHT...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds. .FRI...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at 3 seconds. A slight chance of showers and tstms in the afternoon. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms. .SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. .SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. .SUN...W winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. .SUN NIGHT...W winds 10 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$ AMZ374-151715- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 1245 AM EDT Wed May 15 2024 .REST OF TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 7 seconds and E 1 foot at 9 seconds. A chance of showers and tstms, then showers and tstms likely late. .WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 9 seconds. A chance of showers and tstms, mainly in the morning. .WED NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 9 seconds, becoming S 3 ft at 7 seconds and W 2 ft at 4 seconds. .THU...W winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 4 seconds and S 2 ft at 6 seconds. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at 6 seconds and NW 1 foot at 3 seconds. .FRI...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at 2 seconds. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. A slight chance of tstms after midnight. .SAT...SW winds 10 to 15 kt. Seas 3 ft. Showers likely with a chance of tstms. .SAT NIGHT...SW winds 15 kt. Seas 3 to 4 ft. Showers likely with a chance of tstms. .SUN...W winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. .SUN NIGHT...W winds 10 kt. Seas 3 to 4 ft. A chance of showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$