FZUS52 KCHS 212345 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 645 PM EST Thu Feb 21 2019 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 AMZ300-221115- 645 PM EST Thu Feb 21 2019 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A nearly stationary front to the north will drop into the area on Friday before lifting back north as a warm front Saturday afternoon. A cold front will then sweep through from the west Sunday, followed by high pressure on Monday. A low pressure system could affect the area during the middle of next week. $$ AMZ330-221115- Charleston Harbor- 645 PM EST Thu Feb 21 2019 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST FRIDAY... .TONIGHT...S winds 5 kt. A slight chance of showers this evening, then a chance of showers after midnight. Areas of dense fog. Vsby 1/2 NM or less. .FRI...S winds 5 kt, becoming E in the afternoon. Areas of dense fog in the morning. A chance of showers. Vsby 1 NM or less in the morning. .FRI NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. A chance of showers. .SAT...E winds 5 to 10 kt. A chance of showers, mainly in the morning. .SAT NIGHT...SE winds 5 to 10 kt, becoming S after midnight. A chance of showers. .SUN...SW winds 10 to 15 kt with gusts to 20 kt. A chance of showers. .SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. .MON...NE winds 10 to 15 kt. .MON NIGHT...NE winds 10 to 15 kt. .TUE...E winds 10 to 15 kt. A slight chance of showers. .TUE NIGHT...E winds 10 to 15 kt. A chance of showers. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 58 degrees. $$ AMZ350-221115- Waters from South Santee River to Edisto Beach SC out 20 NM- 645 PM EST Thu Feb 21 2019 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST FRIDAY... .TONIGHT...S winds 5 kt. Seas 3 to 4 ft. A slight chance of showers this evening, then a chance of showers after midnight. Areas of dense fog. Vsby 1/2 NM or less. .FRI...S winds 5 to 10 kt, becoming E 10 to 15 kt with gusts to 20 kt in the afternoon. Seas 3 to 4 ft. A chance of showers. Areas of dense fog in the morning. Patchy fog in the afternoon. Vsby 1 NM or less in the morning. .FRI NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight. A chance of showers, mainly in the evening. .SAT...NE winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Seas 3 to 4 ft. A slight chance of showers. .SAT NIGHT...SE winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts to 20 kt after midnight. Seas 3 ft, building to 4 to 5 ft after midnight. A chance of showers. .SUN...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft. A chance of showers. .SUN NIGHT...W winds 15 kt, becoming NW after midnight. Seas 3 to 4 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of showers. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers. $$ AMZ352-221115- Waters from Edisto Beach SC to Savannah GA out 20 NM- 645 PM EST Thu Feb 21 2019 ...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM EST FRIDAY... .TONIGHT...S winds 5 kt. Seas 3 to 4 ft. A slight chance of showers. Areas of dense fog. Vsby 1/2 NM or less. .FRI...S winds 5 to 10 kt. Seas 3 ft. A slight chance of showers. Areas of dense fog in the morning. Areas of fog in the afternoon. Vsby 1 NM or less in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers. .SAT...E winds 10 kt. Seas 3 to 4 ft. A slight chance of showers. .SAT NIGHT...SE winds 10 kt, becoming S with gusts to 20 kt after midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. A chance of showers. .SUN...SW winds 15 to 20 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. A chance of showers. .SUN NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. .MON...NE winds 15 kt. Seas 3 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of showers. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers. $$ AMZ354-221115- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 645 PM EST Thu Feb 21 2019 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EST FRIDAY... .TONIGHT...E winds 5 to 10 kt, becoming S. Seas 3 ft. A slight chance of showers. Areas of dense fog. Vsby 1/2 NM or less. .FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. Areas of dense fog in the morning, then areas of fog in the afternoon. Vsby 1 NM or less in the morning. .FRI NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas 3 ft. Patchy fog in the evening. A slight chance of showers. .SAT...E winds 10 kt. Seas 3 ft. A slight chance of showers. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers. .SUN...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt, becoming NW after midnight. Seas 2 to 3 ft. .MON...NE winds 15 kt. Seas 2 to 3 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of showers. .TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers. $$ AMZ374-221115- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 645 PM EST Thu Feb 21 2019 .TONIGHT...SE winds 5 to 10 kt. Seas 4 ft. Patchy fog. .FRI...S winds 5 to 10 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers. .SAT...E winds 5 to 10 kt, becoming SE in the afternoon. Seas 4 ft. A slight chance of showers. .SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Seas 4 to 5 ft, building to 4 to 6 ft after midnight. A chance of showers. .SUN...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft. A chance of showers. .SUN NIGHT...W winds 15 kt, becoming NW after midnight. Seas 4 to 5 ft. .MON...NE winds 15 to 20 kt. Seas 4 ft. .MON NIGHT...E winds 15 kt. Seas 4 to 5 ft. .TUE...E winds 15 kt. Seas 5 to 7 ft. A slight chance of showers. .TUE NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of showers. $$