FZUS52 KCHS 011817 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 117 PM EST Sun Nov 1 2026 South Santee River SC to Altamaha Sound GA out 60 NM, including Charleston Harbor and Grays Reef National Marine Sanctuary AMZ300-020830- 117 PM EST Sun Nov 1 2026 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will extend cross the waters through mid-week. A cold front will push offshore Thursday into Thursday night. $$ AMZ340-020830- Charleston Harbor- 117 PM EST Sun Nov 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING... .THIS AFTERNOON...NE winds 20 kt with gusts to 30 kt. Waves 1 to 2 ft. A slight chance of showers. .TONIGHT...NE winds 15 to 20 kt. Gusts to 25 kt early. Waves 1 to 2 ft. A slight chance of showers after midnight. .MON...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Waves building to 1 to 2 ft. A slight chance of showers in the morning. .MON NIGHT...NE winds 10 to 15 kt. .TUE...NE winds 10 to 15 kt with gusts to 20 kt. .TUE NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. .WED...E winds 5 to 10 kt. .WED NIGHT...E winds 5 to 10 kt. A slight chance of showers. .THU...E winds 5 kt. A chance of showers. .THU NIGHT...SW winds 5 kt. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 69 degrees. $$ AMZ360-020830- Coastal waters from South Santee River to Edisto Beach SC out 20 NM- 117 PM EST Sun Nov 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...NE winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 6 seconds. A slight chance of showers. .TONIGHT...NE winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 7 ft, subsiding to 5 to 6 ft after midnight. Wave Detail: E 7 ft at 7 seconds, becoming E 6 ft at 8 seconds. A slight chance of showers. .MON...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 7 seconds. A slight chance of showers in the morning. .MON NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft, subsiding to 4 to 5 ft after midnight. Wave Detail: E 6 ft at 8 seconds, becoming E 5 ft at 8 seconds. .TUE...NE winds 15 kt with gusts to 20 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds. .WED...E winds 10 kt. Seas 4 to 5 ft. A slight chance of showers. .WED NIGHT...E winds 5 to 10 kt. Seas 4 to 5 ft. A slight chance of showers. .THU...E winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers. .THU NIGHT...SW winds 5 kt. Seas 4 to 6 ft. $$ AMZ362-020830- Coastal waters from Edisto Beach SC to Savannah GA out 20 NM- 117 PM EST Sun Nov 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...NE winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 7 ft. Wave Detail: E 5 ft at 6 seconds. A slight chance of showers. .TONIGHT...NE winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 7 ft, subsiding to 5 to 6 ft after midnight. Wave Detail: E 7 ft at 7 seconds, becoming E 6 ft at 8 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. .MON...NE winds 20 kt with gusts to 25 kt. Seas 4 to 6 ft, building to 5 to 6 ft in the afternoon. Wave Detail: E 6 ft at 8 seconds. A chance of showers, mainly in the morning. .MON NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. .TUE...NE winds 15 to 20 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds. .WED...E winds 10 kt. Seas 4 to 5 ft. A slight chance of showers. .WED NIGHT...E winds 5 to 10 kt. Seas 4 to 5 ft. A chance of showers with a slight chance of tstms. .THU...E winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. .THU NIGHT...SW winds 5 kt. Seas 4 to 5 ft. Winds and seas higher in and near tstms. $$ AMZ364-020830- Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary- 117 PM EST Sun Nov 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING... .THIS AFTERNOON...NE winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 6 ft. Wave Detail: E 4 ft at 6 seconds. A slight chance of showers and tstms early, then a chance of showers late. .TONIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 4 to 6 ft. Wave Detail: E 6 ft at 8 seconds and NE 5 ft at 5 seconds. A chance of showers. .MON...NE winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft, building to 5 to 6 ft in the afternoon. Wave Detail: E 6 ft at 8 seconds. A chance of showers, mainly in the morning. .MON NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of showers. .TUE...NE winds 15 kt with gusts to 20 kt. Seas 5 to 6 ft. Wave Detail: E 5 ft at 8 seconds. A slight chance of showers in the afternoon. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds. .WED...E winds 5 to 10 kt. Seas 4 to 5 ft. A slight chance of showers. .WED NIGHT...E winds 5 to 10 kt. Seas 4 to 5 ft. A slight chance of showers and tstms. .THU...E winds 5 kt. Seas 4 ft. A slight chance of showers and tstms. .THU NIGHT...SW winds 5 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. $$ AMZ380-020830- Waters from South Santee River SC to Edisto Beach SC extending from 20 to 60 NM- 117 PM EST Sun Nov 1 2026 .THIS AFTERNOON...NE winds 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: E 7 ft at 8 seconds. A slight chance of showers. .TONIGHT...E winds 20 to 25 kt. Seas 6 to 8 ft. Wave Detail: E 8 ft at 8 seconds, becoming E 7 ft at 8 seconds. A chance of showers. .MON...E winds 20 kt with gusts to 25 kt. Seas 6 to 7 ft. Wave Detail: E 7 ft at 8 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon. .MON NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 6 to 7 ft, subsiding to 5 to 7 ft after midnight. Wave Detail: E 7 ft at 8 seconds, becoming E 6 ft at 8 seconds. A slight chance of showers. .TUE...E winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of showers. .TUE NIGHT...E winds 15 kt with gusts to 20 kt. Seas 5 to 6 ft, building to 5 to 7 ft after midnight. Wave Detail: E 6 ft at 8 seconds. A slight chance of showers. .WED...E winds 10 to 15 kt. Seas 5 to 7 ft. A slight chance of showers. .WED NIGHT...E winds 10 kt. Seas 5 to 6 ft. A chance of showers with a slight chance of tstms. .THU...E winds 5 to 10 kt. Seas 4 to 6 ft. A chance of showers. .THU NIGHT...S winds 5 to 10 kt. Seas 5 to 7 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ382-020830- Waters from Edisto Beach SC to Savannah GA extending from 20 to 60 NM- 117 PM EST Sun Nov 1 2026 .THIS AFTERNOON...NE winds 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: E 7 ft at 7 seconds. A slight chance of showers. .TONIGHT...E winds 20 to 25 kt with gusts to 30 kt. Seas 6 to 8 ft. Wave Detail: E 8 ft at 8 seconds. A chance of showers. .MON...E winds 20 kt with gusts to 25 kt. Seas 6 to 8 ft, subsiding to 6 to 7 ft in the afternoon. Wave Detail: E 7 ft at 8 seconds. A chance of showers. .MON NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 6 to 7 ft. Wave Detail: E 7 ft at 8 seconds. A chance of showers, mainly in the evening. .TUE...E winds 15 to 20 kt with guststo 25 kt. Seas 6 to 7 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of showers. .TUE NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of showers after midnight. .WED...E winds 10 to 15 kt. Seas 5 to 6 ft. A slight chance of showers. .WED NIGHT...E winds 10 kt. Seas 5 to 6 ft. A chance of showers with a slight chance of tstms. .THU...E winds 5 to 10 kt. Seas 4 to 5 ft. A chance of showers. .THU NIGHT...SW winds 5 to 10 kt. Seas 4 to 6 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ384-020830- Waters from Savannah GA to Altamaha Sound GA extending from 20 to 60 NM- 117 PM EST Sun Nov 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .THIS AFTERNOON...NE winds 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: E 6 ft at 7 seconds. A slight chance of showers early, then a chance of showers late. .TONIGHT...E winds 20 to 25 kt with gusts to 30 kt. Seas 6 to 8 ft. Wave Detail: E 8 ft at 7 seconds, becoming E 8 ft at 8 seconds. A chance of showers. .MON...E winds 15 to 20 kt with gusts to 25 kt. Seas 6 to 8 ft, subsiding to 6 to 7 ft in the afternoon. Wave Detail: E 7 ft at 8 seconds. A chance of showers. A slight chance of tstms in the afternoon. .MON NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 6 to 7 ft. Wave Detail: E 7 ft at 8 seconds. A slight chance of tstms in the evening. A chance of showers. .TUE...E winds 15 kt with gusts to 20 kt. Seas 6 to 7 ft. Wave Detail: E 7 ft at 8 seconds. A slight chance of showers. .TUE NIGHT...E winds 10 to 15 kt with gusts to 20 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of showers after midnight. .WED...E winds 10 to 15 kt. Seas 5 to 6 ft. A chance of showers. .WED NIGHT...E winds 5 to 10 kt. Seas 5 to 6 ft. A chance of showers with a slight chance of tstms. .THU...E winds 5 to 10 kt. Seas 4 to 5 ft. A slight chance of showers and tstms. .THU NIGHT...SW winds 5 to 10 kt. Seas 4 to 6 ft. Winds and seas higher in and near tstms. $$