Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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450 FZUS52 KCHS 160854 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 454 AM EDT Mon Sep 16 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 AMZ300-162100- 454 AM EDT Mon Sep 16 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... Potential Tropical Cyclone Eight offshore of the Southeast U.S. Coast is expected to move across the Carolinas Monday afternoon into Tuesday, then possibly across the Mid-Atlantic states by Wednesday. Refer to the latest advisory on Potential Tropical Cyclone 8 issued by the National Hurricane Center. $$ AMZ330-162100- Charleston Harbor- 454 AM EDT Mon Sep 16 2024 ...TROPICAL STORM WARNING IN EFFECT... ...SMALL CRAFT SHOULD REMAIN IN PORT... .TODAY...Tropical storm conditions possible. NW winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft. A chance of showers until late afternoon, then a slight chance of showers late. .TONIGHT...W winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. .TUE...SW winds 5 to 10 kt. .TUE NIGHT...S winds 5 to 10 kt. A slight chance of showers and tstms late. .WED...SW winds 5 kt, becoming S in the afternoon. A slight chance of showers and tstms. .WED NIGHT...SW winds 5 to 10 kt. A slight chance of showers and tstms early in the evening. .THU...NW winds 5 to 10 kt, becoming S in the afternoon. A slight chance of showers and tstms in the afternoon. .THU NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. A slight chance of showers and tstms early in the evening. .FRI...NE winds 5 to 10 kt. A slight chance of showers and tstms in the afternoon. .FRI NIGHT...NE winds 5 to 10 kt. A slight chance of showers and tstms until early morning. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 77 degrees. $$ AMZ350-162100- Waters from South Santee River to Edisto Beach SC out 20 NM- 454 AM EDT Mon Sep 16 2024 ...TROPICAL STORM WARNING IN EFFECT... ...SMALL CRAFT SHOULD REMAIN IN PORT... .TODAY...Tropical storm conditions expected. N winds 25 to 30 kt with gusts to 40 kt, becoming NW 20 to 25 kt with gusts to 30 kt this afternoon. Seas 8 to 10 ft, subsiding to 7 to 9 ft this afternoon. Wave Detail: E 10 ft at 10 seconds. A chance of showers until late afternoon, then a slight chance of showers late. .TONIGHT...Tropical storm conditions possible. W winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 7 ft, subsiding to 4 to 5 ft after midnight. Wave Detail: E 6 ft at 10 seconds and W 2 ft at 4 seconds. .TUE...SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: E 4 ft at 10 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 4 ft at 9 seconds. A slight chance of showers and tstms after midnight. .WED...SW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. A slight chance of showers and tstms until late afternoon. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 1 foot at 2 seconds. A slight chance of showers and tstms. .THU...NW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. A slight chance of showers and tstms early in the morning. .THU NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. A slight chance of showers and tstms in the late evening and early morning. .FRI...NE winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ352-162100- Waters from Edisto Beach SC to Savannah GA out 20 NM- 454 AM EDT Mon Sep 16 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...N winds 20 to 25 kt, becoming NW 15 to 20 kt this afternoon. Seas 6 to 8 ft, subsiding to 5 to 7 ft this afternoon. Wave Detail: E 8 ft at 10 seconds. A slight chance of showers late this morning. .TONIGHT...NW winds 15 to 20 kt, becoming W 10 kt after midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight. Wave Detail: E 6 ft at 10 seconds and NW 2 ft at 3 seconds. .TUE...SW winds 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: E 4 ft at 10 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 4 ft at 10 seconds. A slight chance of showers and tstms after midnight. .WED...SW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. A slight chance of showers and tstms until late afternoon. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. A slight chance of showers and tstms. .THU...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. A slight chance of showers and tstms early in the morning. .THU NIGHT...S winds 5 kt, becoming W after midnight. Seas 2 to 3 ft. .FRI...N winds 5 to 10 kt, becoming NE in the afternoon. Seas 2 to 3 ft. A slight chance of showers and tstms in the afternoon. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-162100- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 454 AM EDT Mon Sep 16 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...N winds 15 to 20 kt with gusts to 25 kt. Seas 6 to 8 ft, subsiding to 5 to 7 ft this afternoon. Wave Detail: E 7 ft at 10 seconds. .TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt, becoming W 5 to 10 kt after midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight. Wave Detail: E 6 ft at 10 seconds. .TUE...W winds 5 to 10 kt, becoming S in the afternoon. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: E 5 ft at 10 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 4 ft at 10 seconds. A slight chance of showers and tstms after midnight. .WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. A slight chance of showers and tstms until late afternoon. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. A slight chance of showers and tstms. .THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. A slight chance of showers and tstms early in the morning. .THU NIGHT...S winds 5 kt, becoming W after midnight. Seas 2 to 3 ft. .FRI...N winds 10 kt, becoming NE in the afternoon. Seas 2 to 3 ft. A slight chance of showers and tstms in the afternoon. .FRI NIGHT...NE winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-162100- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 454 AM EDT Mon Sep 16 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON... .TODAY...N winds 15 to 20 kt with gusts to 25 kt. Seas 7 to 9 ft, subsiding to 6 to 8 ft this afternoon. Wave Detail: NE 9 ft at 10 seconds. A slight chance of showers early this morning. .TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt, becoming W 5 to 10 kt after midnight. Seas 6 to 8 ft, subsiding to 5 to 7 ft after midnight. Wave Detail: E 7 ft at 10 seconds. .TUE...W winds 5 to 10 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft in the afternoon. Wave Detail: E 6 ft at 10 seconds. .TUE NIGHT...S winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds. A slight chance of showers and tstms in the late evening and early morning. A chance of showers and tstms late. .WED...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. A chance of showers and tstms until late afternoon, then a slight chance of showers and tstms late. .WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. A slight chance of showers and tstms early in the evening, then a chance of showers and tstms in the late evening and overnight. .THU...W winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers and tstms early in the morning, then a slight chance of showers and tstms in the late morning and early afternoon. .THU NIGHT...S winds 5 kt, becoming W after midnight. Seas 3 ft. A slight chance of showers and tstms. .FRI...N winds 10 kt, becoming NE in the afternoon. Seas 3 ft. A slight chance of showers and tstms. .FRI NIGHT...NE winds 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms early in the evening, then a chance of showers and tstms in the late evening and overnight. Winds and seas higher in and near tstms. $$