FZUS52 KCHS 211139 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 639 AM EST Thu Nov 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 AMZ300-220015- 639 AM EST Thu Nov 21 2024 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... Canadian high pressure will build across the area today and will remain the primary feature through early next week. A cold front could approach the area towards the middle of next week. $$ AMZ330-220015- Charleston Harbor- 639 AM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...NW winds 10 to 15 kt, becoming W early this afternoon, then increasing to 15 to 20 kt with gusts to 25 kt late. Waves 1 to 2 ft. .TONIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft. .FRI...W winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft. .FRI NIGHT...W winds 15 kt with gusts to 20 kt. .SAT...W winds 10 to 15 kt. .SAT NIGHT...W winds 5 to 10 kt. .SUN...W winds 5 kt. .SUN NIGHT...W winds 5 kt. .MON...W winds 5 to 10 kt. .MON NIGHT...SW winds 10 kt. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 66 degrees. $$ AMZ350-220015- Waters from South Santee River to Edisto Beach SC out 20 NM- 639 AM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TODAY...NW winds 15 to 20 kt, becoming W early this afternoon, then increasing to 20 to 25 kt with gusts to 30 kt late. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at 10 seconds. .TONIGHT...W winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 5 seconds and E 1 foot at 9 seconds. .FRI...W winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 5 seconds and E 1 foot at 10 seconds. .FRI NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 1 foot at 9 seconds. .SAT...NW winds 15 to 20 kt with gusts to 25 kt, becoming W 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds. .SAT NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW 1 foot at 4 seconds. .SUN...W winds 5 to 10 kt. Seas 2 ft. .SUN NIGHT...W winds 10 kt. Seas 2 ft. .MON...W winds 10 to 15 kt. Seas 2 ft. .MON NIGHT...SW winds 10 to 15 kt. Seas 2 ft. $$ AMZ352-220015- Waters from Edisto Beach SC to Savannah GA out 20 NM- 639 AM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TODAY...NW winds 15 to 20 kt, becoming W 20 to 25 kt with gusts to 30 kt late. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at 10 seconds. .TONIGHT...W winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at 5 seconds and E 1 foot at 10 seconds. .FRI...NW winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: W 4 ft at 4 seconds and E 1 foot at 10 seconds. .FRI NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 4 seconds and E 1 foot at 8 seconds. .SAT...NW winds 15 to 20 kt, becoming W 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds. .SAT NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds. .SUN...W winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .MON...W winds 5 to 10 kt. Seas 1 foot or less. .MON NIGHT...SW winds 10 to 15 kt. Seas 2 ft. $$ AMZ354-220015- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 639 AM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TODAY...NW winds 15 to 20 kt, becoming W 20 to 25 kt with gusts to 30 kt late. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 2 ft at 11 seconds. .TONIGHT...W winds 20 to 25 kt with gusts to 30 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 4 seconds and E 1 foot at 9 seconds. .FRI...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: W 4 ft at 4 seconds and E 1 foot at 10 seconds. .FRI NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at 9 seconds. .SAT...NW winds 15 to 20 kt, becoming W 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds. .SAT NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at 5 seconds. .SUN...W winds 5 to 10 kt. Seas 1 foot or less. .SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .MON...W winds 5 to 10 kt. Seas 1 foot or less. .MON NIGHT...SW winds 10 kt. Seas 1 foot or less. $$ AMZ374-220015- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 639 AM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TODAY...NW winds 20 to 25 kt with gusts to 30 kt, diminishing to 15 to 20 kt late this morning and early afternoon, then becoming W 20 to 25 kt with gusts to 30 kt late. Seas 5 to 7 ft, subsiding to 4 to 5 ft this afternoon. Wave Detail: NW 6 ft at 5 seconds and E 1 foot at 10 seconds, becoming NW 5 ft at 5 seconds and NE 2 ft at 10 seconds. .TONIGHT...W winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 6 ft. Wave Detail: W 6 ft at 5 seconds and E 1 foot at 10 seconds. .FRI...NW winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 6 ft, subsiding to 4 to 6 ft in the afternoon. Wave Detail: W 6 ft at 5 seconds and E 1 foot at 9 seconds. .FRI NIGHT...NW winds 20 to 25 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 5 seconds and E 1 foot at 9 seconds. .SAT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: NW 4 ft at 5 seconds and E 1 foot at 9 seconds, becoming NW 3 ft at 5 seconds and E 1 foot at 10 seconds. .SAT NIGHT...W winds 10 kt. Seas 2 ft in the evening, then 1 foot or less. Wave Detail: NW 2 ft at 4 seconds and NE 1 foot at 9 seconds, becoming W 1 foot at 3 seconds and NE 1 foot at 9 seconds. .SUN...W winds 5 to 10 kt. Seas 2 ft. .SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. .MON...W winds 5 to 10 kt. Seas 1 foot or less. .MON NIGHT...SW winds 10 to 15 kt. Seas 2 ft. $$