Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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589 FZUS52 KCHS 211906 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 306 PM EDT Tue May 21 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 AMZ300-220815- 306 PM EDT Tue May 21 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will persist into late week. Diurnal convection is expected during the weekend. A cold front might approach early next week. $$ AMZ330-220815- Charleston Harbor- 306 PM EDT Tue May 21 2024 .THIS AFTERNOON...E winds 10 kt. .TONIGHT...E winds 5 to 10 kt. .WED...NE winds 5 kt, becoming E in the afternoon. .WED NIGHT...S winds 5 to 10 kt. .THU...S winds 5 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. .THU NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. .FRI...SW winds 10 to 15 kt. .FRI NIGHT...SW winds 10 to 15 kt. .SAT...SW winds 10 to 15 kt. A slight chance of showers and tstms. .SAT NIGHT...SW winds 10 to 15 kt. A slight chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 76 degrees. $$ AMZ350-220815- Waters from South Santee River to Edisto Beach SC out 20 NM- 306 PM EDT Tue May 21 2024 .THIS AFTERNOON...E winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TONIGHT...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...NE winds 5 kt, becoming E in the afternoon. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 foot at 10 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 9 seconds. .THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 foot at 3 seconds. .THU NIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 9 seconds. .FRI...SW winds 10 to 15 kt. Seas 2 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SAT NIGHT...SW 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. $$ AMZ352-220815- Waters from Edisto Beach SC to Savannah GA out 20 NM- 306 PM EDT Tue May 21 2024 .THIS AFTERNOON...E winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .WED...E winds 5 kt. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 foot at 10 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 foot at 10 seconds. .THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft. Wave Detail: E 2 ft at 9 seconds and S 1 foot at 2 seconds. .THU NIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 9 seconds. .FRI...SW winds 10 to 15 kt. Seas 2 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. .SAT...SW winds 10 kt. Seas 2 ft. .SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-220815- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 306 PM EDT Tue May 21 2024 .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds. .TONIGHT...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. .WED NIGHT...SE winds 5 to 10 kt. 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, increasing to 10 to 15 kt in the afternoon. Seas 2 ft. Wave Detail: E 2 ft at 9 seconds. .THU NIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 9 seconds. .FRI...S winds 10 to 15 kt. Seas 2 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. .SAT...SW winds 10 kt. Seas 2 ft. .SAT NIGHT...SW winds 10 kt. Seas 2 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-220815- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 306 PM EDT Tue May 21 2024 .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 8 seconds. .TONIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and SE 1 foot at 10 seconds. .WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. .THU...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 1 foot at 10 seconds. .THU NIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 1 foot at 9 seconds. .FRI...S winds 10 to 15 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. .SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$