Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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687 FZUS52 KCHS 200721 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 321 AM EDT Mon May 20 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 AMZ300-202030- 321 AM EDT Mon May 20 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will persist for most of this week. A series of upper level disturbances should impact our area next weekend. $$ AMZ330-202030- Charleston Harbor- 321 AM EDT Mon May 20 2024 .TODAY...NE winds 10 to 15 kt, gusts up to 20 kt. .TONIGHT...NE winds 10 to 15 kt. .TUE...NE winds 10 to 15 kt. .TUE NIGHT...E winds 5 to 10 kt. .WED...NE winds 5 to 10 kt, becoming SE in the afternoon. .WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. .THU...SW winds 5 to 10 kt. .THU NIGHT...S winds 10 to 15 kt. .FRI...SW winds 10 to 15 kt. .FRI NIGHT...S winds 10 to 15 kt. A slight chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 degrees. $$ AMZ350-202030- Waters from South Santee River to Edisto Beach SC out 20 NM- 321 AM EDT Mon May 20 2024 .TODAY...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 6 seconds and S 1 foot at 6 seconds. .TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: E 5 ft at 7 seconds, becoming E 4 ft at 7 seconds. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds and SE 1 foot at 10 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .WED...NE winds 5 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .WED NIGHT...SE winds 10 kt, becoming SW after midnight. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 2 seconds. .THU...SW winds 5 to 10 kt. Seas 2 ft. .THU NIGHT...SW winds 10 kt. Seas 2 ft. .FRI...SW winds 10 kt. Seas 2 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 2 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ352-202030- Waters from Edisto Beach SC to Savannah GA out 20 NM- 321 AM EDT Mon May 20 2024 .TODAY...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 foot at 9 seconds. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .WED...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and S 1 foot at 3 seconds. .THU...SW winds 5 to 10 kt. Seas 2 ft. .THU NIGHT...S winds 10 kt. Seas 2 ft. .FRI...SW winds 10 kt. Seas 2 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-202030- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 321 AM EDT Mon May 20 2024 .TODAY...NE winds 15 to 20 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft this afternoon. Wave Detail: NE 4 ft at 5 seconds and SE 1 foot at 5 seconds, becoming NE 4 ft at 6 seconds and E 1 foot at 10 seconds. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and E 1 foot at 10 seconds. .TUE...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: E 4 ft at 7 seconds, becoming E 3 ft at 7 seconds. .WED...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .WED NIGHT...SE winds 10 kt, becoming S after midnight. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 foot at 10 seconds. .THU...S winds 5 to 10 kt. Seas 2 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. .FRI...S winds 10 kt. Seas 2 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft. $$ AMZ374-202030- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 321 AM EDT Mon May 20 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...NE winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft, building to 5 to 6 ft this afternoon. Wave Detail: NE 5 ft at 5 seconds and E 1 foot at 8 seconds, becoming NE 5 ft at 6 seconds and SE 1 foot at 10 seconds. .TONIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 7 seconds. .TUE...NE winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 7 seconds and SE 1 foot at 10 seconds. A slight chance of showers. .TUE NIGHT...NE winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: NE 4 ft at 7 seconds and SE 1 foot at 10 seconds. A slight chance of showers. .WED...NE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. A slight chance of showers in the morning. .WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .THU...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$