Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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975 FZUS52 KCHS 162128 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 428 PM EST Sun Nov 16 2025 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 AMZ300-171015- 428 PM EST Sun Nov 16 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A dry cold front will move through the area tonight before high pressure returns early next week. A warm front should lift north of the region by Wednesday, with unseasonable warm conditions remaining until next weekend. $$ AMZ330-171015- Charleston Harbor- 428 PM EST Sun Nov 16 2025 .TONIGHT...W winds 10 to 15 kt, becoming N 10 kt .MON...NE winds 5 to 10 kt. .MON NIGHT...NE winds 5 kt. .TUE...E winds 5 kt. .TUE NIGHT...S winds 5 kt. .WED...SW winds 5 to 10 kt. .WED NIGHT...SW winds 5 to 10 kt. .THU...SW winds 5 kt. .THU NIGHT...S winds 5 kt. .FRI...SW winds 5 to 10 kt. .FRI NIGHT...SW winds 5 to 10 kt. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 61 degrees. $$ AMZ350-171015- Waters from South Santee River to Edisto Beach SC out 20 NM- 428 PM EST Sun Nov 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING... .TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt early, becoming W 10 to 15 kt with gusts to 20 kt after sunset, then N late this evening. Seas 3 to 5 ft, subsiding to 2 to 3 ft. Wave Detail: SW 4 ft at 6 seconds and SE 1 foot at 9 seconds, becoming W 3 ft at 6 seconds and N 2 ft at 3 seconds. .MON...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and SW 2 ft at 5 seconds. .MON NIGHT...NE winds 5 kt. Seas 2 ft. Wave Detail: NE 2 ft at 5 seconds and SE 1 foot at 8 seconds. .TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 1 foot at 5 seconds and SE 1 foot at 8 seconds. .TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 ft. Wave Detail: SE 1 foot at 4 seconds and SE 1 foot at 8 seconds. .WED...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 4 seconds and E 1 foot at 7 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. .THU...SW winds 5 kt. Seas 1 foot or less. .THU NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. .FRI...SW winds 5 to 10 kt. Seas 2 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. $$ AMZ352-171015- Waters from Edisto Beach SC to Savannah GA out 20 NM- 428 PM EST Sun Nov 16 2025 .TONIGHT...SW winds 15 kt with gusts to 20 kt early, becoming W 10 to 15 kt after sunset, then N after midnight. Seas 2 to 4 ft.. subsiding to 1 to 2 ft. Wave Detail: W 3 ft at 5 seconds and N 2 ft at 3 seconds. .MON...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 1 to 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 4 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: NE 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TUE...E winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: E 1 foot at 5 seconds and SE 1 foot at 8 seconds. .TUE NIGHT...S winds 5 kt. Seas 1 to 2 ft. Wave Detail: E 1 foot at 5 seconds and SE 1 foot at 8 seconds. .WED...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 6 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 to 2 ft. .THU...SW winds 5 kt. Seas 1 foot or less. .THU NIGHT...S winds 5 kt. Seas 1 foot or less. .FRI...SW winds 5 to 10 kt. Seas 1 to 2 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft. $$ AMZ354-171015- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 428 PM EST Sun Nov 16 2025 .TONIGHT...SW winds 10 to 15 kt, becoming W after sunset, then N after midnight. Seas 2 to 3 ft, subsiding to 1 to 2 ft. Wave Detail: W 2 ft at 4 seconds and N 1 foot at 2 seconds. .MON...NE winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at 4 seconds. .MON NIGHT...E winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: NE 2 ft at 4 seconds and SE 1 foot at 8 seconds. .TUE...E winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: NE 2 ft at 5 seconds and SE 1 foot at 8 seconds. .TUE NIGHT...SE winds 5 kt, becoming SW after midnight. Seas 1 to 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 7 seconds. .WED...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: S 1 foot at 3 seconds and NE 1 foot at 5 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 to 2 ft. .THU...SW winds 5 to 10 kt. Seas 1 to 2 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. .FRI...S winds 5 to 10 kt. Seas 1 to 2 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft. $$ AMZ374-171015- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 428 PM EST Sun Nov 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING... .TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt early, becoming W 10 to 15 kt after sunset, then N after midnight. Seas 3 to 6 ft, subsiding to 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and SE 1 foot at 8 seconds, becoming N 3 ft at 4 seconds and SE 1 foot at 8 seconds. .MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SW 2 ft at 4 seconds. .MON NIGHT...NE winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds and SE 1 foot at 8 seconds. .TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and E 1 foot at 14 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and S 1 foot at 3 seconds. .WED...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and S 1 foot at 4 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. .THU...W winds 5 kt. Seas 2 ft. .THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. .FRI...SW winds 10 kt. Seas 2 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. $$