Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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862 FZUS52 KCHS 030702 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 302 AM EDT Thu Apr 3 2025 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 AMZ300-032015- 302 AM EDT Thu Apr 3 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... Strong Atlantic high pressure will prevail into this weekend, then a cold front will move through Monday. High pressure will then rebuild. $$ AMZ330-032015- Charleston Harbor- 302 AM EDT Thu Apr 3 2025 .TODAY...S winds 10 to 15 kt with gusts to 20 kt. .TONIGHT...S winds 10 to 15 kt. .FRI...S winds 5 to 10 kt. .FRI NIGHT...S winds 5 to 10 kt. .SAT...S winds 5 to 10 kt. .SAT NIGHT...S winds 10 kt. .SUN...S winds 10 to 15 kt. .SUN NIGHT...S winds 10 to 15 kt. A chance of showers. .MON...SW winds 10 kt. Showers. .MON NIGHT...W winds 5 to 10 kt. Showers with a slight chance of tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 67 degrees. $$ AMZ350-032015- Waters from South Santee River to Edisto Beach SC out 20 NM- 302 AM EDT Thu Apr 3 2025 .TODAY...S winds 10 to 15 kt. Seas 4 ft. Wave Detail: SE 4 ft at 9 seconds. .TONIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .FRI...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds. .SAT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft at 8 seconds, becoming SE 5 ft at 8 seconds. .SUN...S winds 15 to 20 kt. Seas 4 to 5 ft. .SUN NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers. .MON...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers. .MON NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft. Showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$ AMZ352-032015- Waters from Edisto Beach SC to Savannah GA out 20 NM- 302 AM EDT Thu Apr 3 2025 .TODAY...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. .TONIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .FRI...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds. .SAT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft at 8 seconds, becoming SE 5 ft at 8 seconds. .SUN...S winds 15 to 20 kt. Seas 4 to 5 ft. .SUN NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers. .MON...SW winds 10 to 15 kt. Seas 4 to 5 ft. Showers. .MON NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. Showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$ AMZ354-032015- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 302 AM EDT Thu Apr 3 2025 .TODAY...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and SE 3 ft at 5 seconds. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. .FRI...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .FRI NIGHT...SE winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds. .SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. .SAT NIGHT...S winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft at 8 seconds. .SUN...S winds 15 to 20 kt. Seas 4 to 5 ft. .SUN NIGHT...S winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .MON NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. Showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$ AMZ374-032015- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 302 AM EDT Thu Apr 3 2025 .TODAY...SE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 9 seconds. .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 9 seconds and E 2 ft at 7 seconds. .FRI...S winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 9 seconds and E 2 ft at 7 seconds. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 8 seconds. .SAT...S winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 8 seconds. .SAT NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, building to 5 to 6 ft after midnight. Wave Detail: SE 5 ft at 9 seconds. .SUN...S winds 15 to 20 kt. Seas 5 to 6 ft. .SUN NIGHT...S winds 15 to 20 kt. Seas 5 to 6 ft. A slight chance of showers. .MON...SW winds 15 kt. Seas 4 to 5 ft. Showers likely. .MON NIGHT...W winds 15 kt. Seas 4 to 5 ft. Showers with a slight chance of tstms. Winds and seas higher in and near tstms. $$