Station List

National Weather Service Marine Forecast FZUS52 KCHS

FZUS52 KCHS 152320
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
620 PM EST Thu Jan 15 2026

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

AMZ300-161300
620 PM EST Thu Jan 15 2026

.Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... The marine zones will remain between a strong cold front pushing across the western Atlantic and high pressure centered over the southern Mississippi River Valley. This pattern will support gusty northwest winds and building seas thorugh tonight. The center of a large area of high pressure will build over the region Friday and Saturday. Another strong cold front is forecast to push across the area on Sunday. High pressure should settle over the region early next week.

AMZ330-161300
Charleston Harbor
620 PM EST Thu Jan 15 2026

TONIGHT
NW winds 10 to 15 kt with gusts to 20 kt, diminishing to 5 to 10 kt late.

FRI
SW winds 5 to 10 kt.

FRI NIGHT
SW winds 5 to 10 kt.

SAT
SW winds 10 to 15 kt.

SAT NIGHT
SW winds 5 to 10 kt, becoming NW after midnight. A slight chance of showers in the evening, then a chance of showers after midnight.

SUN
NW winds 10 to 15 kt. Showers likely, mainly in the morning.

SUN NIGHT
NW winds 10 kt.

MON
W winds 5 to 10 kt.

MON NIGHT
W winds 10 kt.

TUE
N winds 5 to 10 kt.

TUE NIGHT
N winds 5 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 55 degrees.

AMZ350-161300
Waters from South Santee River to Edisto Beach SC out 20 NM
620 PM EST Thu Jan 15 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT

TONIGHT
NW winds 20 to 25 kt, diminishing to 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: NW 4 ft at 5 seconds and E 1 foot at 9 seconds.

FRI
W winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and E 1 foot at 7 seconds.

FRI NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 8 seconds.

SAT
SW winds 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 9 seconds.

SAT NIGHT
W winds 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E 1 foot at 9 seconds. A slight chance of showers in the evening, then a chance of showers after midnight.

SUN
NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot at 9 seconds. Showers.

SUN NIGHT
NW winds 10 to 15 kt. Seas 2 to 3 ft.

MON
W winds 10 to 15 kt. Seas 2 to 3 ft.

MON NIGHT
W winds 15 kt. Seas 3 to 4 ft.

TUE
N winds 10 to 15 kt. Seas 3 to 4 ft.

TUE NIGHT
N winds 5 to 10 kt. Seas 2 to 3 ft.

AMZ352-161300
Waters from Edisto Beach SC to Savannah GA out 20 NM
620 PM EST Thu Jan 15 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT

TONIGHT
NW winds 20 to 25 kt, diminishing to 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: NW 5 ft at 5 seconds and SE 1 foot at 9 seconds, becoming NW 4 ft at 4 seconds and E 1 foot at 9 seconds.

FRI
W winds 5 to 10 kt, becoming SW in the afternoon. Seas 1 to 2 ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 8 seconds, becoming SW 1 foot at 3 seconds and E 1 foot at 8 seconds.

FRI NIGHT
SW winds 10 to 15 kt. Seas 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 9 seconds.

SAT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 9 seconds.

SAT NIGHT
SW winds 5 to 10 kt, becoming NW 10 to 15 kt after midnight. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 9 seconds. A slight chance of showers in the evening, then a chance of showers after midnight.

SUN
NW winds 15 kt with gusts to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 3 seconds and E 1 foot at 9 seconds. Showers likely, mainly in the morning.

SUN NIGHT
NW winds 10 to 15 kt. Seas 2 to 3 ft.

MON
W winds 10 kt. Seas 2 ft.

MON NIGHT
W winds 10 to 15 kt. Seas 2 to 3 ft.

TUE
N winds 10 to 15 kt. Seas 2 to 3 ft.

TUE NIGHT
N winds 5 to 10 kt. Seas 2 to 3 ft.

AMZ354-161300
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary
620 PM EST Thu Jan 15 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT

TONIGHT
NW winds 20 to 25 kt with gusts to 30 kt, diminishing to 10 to 15 kt with gusts to 20 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at 8 seconds, becoming NW 4 ft at 4 seconds and E 1 foot at 9 seconds.

FRI
NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 1 to 2 ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 9 seconds, becoming W 1 foot at 2 seconds and NE 1 foot at 7 seconds.

FRI NIGHT
SW winds 10 to 15 kt. Seas 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 8 seconds.

SAT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 9 seconds.

SAT NIGHT
SW winds 5 to 10 kt, becoming NW 10 to 15 kt after midnight. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 9 seconds. A slight chance of showers in the evening, then a chance of showers after midnight.

SUN
NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at 9 seconds. Showers likely, mainly in the morning.

SUN NIGHT
NW winds 10 to 15 kt. Seas 2 to 3 ft.

MON
W winds 10 to 15 kt. Seas 2 ft.

MON NIGHT
NW winds 10 to 15 kt. Seas 2 to 3 ft.

TUE
N winds 10 to 15 kt. Seas 2 to 3 ft.

TUE NIGHT
N winds 5 to 10 kt. Seas 2 to 3 ft.

AMZ374-161300
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM
620 PM EST Thu Jan 15 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST FRIDAY

TONIGHT
NW winds 25 to 30 kt, diminishing to 15 to 20 kt. Seas 6 to 8 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: NW 7 ft at 6 seconds and E 1 foot at 9 seconds, becoming NW 6 ft at 6 seconds and E 1 foot at 9 seconds.

FRI
NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 3 to 4 ft, subsiding to 2 ft in the afternoon. Wave Detail: NW 4 ft at 5 seconds and E 1 foot at 10 seconds, becoming NW 2 ft at 4 seconds and E 1 foot at 9 seconds.

FRI NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 8 seconds.

SAT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 8 seconds.

SAT NIGHT
SW winds 10 kt, becoming NW with gusts to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at 9 seconds. A slight chance of showers in the evening, then a chance of showers after midnight.

SUN
NW winds 20 to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at 9 seconds, becoming NW 5 ft at 5 seconds and E 1 foot at 9 seconds. A slight chance of tstms. Showers, mainly in the morning.

SUN NIGHT
NW winds 15 to 20 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight.

MON
NW winds 10 to 15 kt. Seas 3 to 4 ft.

MON NIGHT
NW winds 15 to 20 kt. Seas 3 to 4 ft.

TUE
N winds 15 to 20 kt. Seas 3 to 4 ft.

TUE NIGHT
N winds 10 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.