National Weather Service Marine Forecast FZUS52 KCHS

FZUS52 KCHS 110941
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
441 AM EST Wed Feb 11 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

AMZ300-112300
441 AM EST Wed Feb 11 2026

.Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A cold front will pass from north to south across the local waters this evening. High pressure will return to the area Thursday and prevail through Saturday. An area of low pressure could impact the region Sunday.


AMZ330-112300
Charleston Harbor
441 AM EST Wed Feb 11 2026

TODAY
W winds 10 to 15 kt. A chance of showers early this morning, then showers late this morning.

TONIGHT
N winds 5 to 10 kt. Showers in the evening.

THU
N winds 10 kt, becoming E in the afternoon.

THU NIGHT
NE winds 5 kt.

FRI
NE winds 5 to 10 kt.

FRI NIGHT
E winds 5 kt.

SAT
E winds 5 kt. A slight chance of showers.

SAT NIGHT
E winds 5 to 10 kt. A chance of showers.

SUN
SE winds 10 to 15 kt. Showers.

SUN NIGHT
SW winds 10 to 15 kt. Showers likely.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 47 degrees.


AMZ350-112300
Waters from South Santee River to Edisto Beach SC out 20 NM
441 AM EST Wed Feb 11 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

TODAY
SW winds 15 to 20 kt, diminishing to 10 to 15 kt late. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and E 1 foot at 12 seconds. A chance of showers early this morning, then showers likely late this morning.

TONIGHT
NW winds 10 to 15 kt, becoming N 15 to 20 kt after midnight. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: SW 4 ft at 6 seconds and E 1 foot at 12 seconds, becoming SW 3 ft at 6 seconds and NE 2 ft at 12 seconds. Showers in the evening with vsby 1 to 3 NM.

THU
N winds 15 to 20 kt, becoming NE 5 to 10 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: NE 3 ft at 5 seconds and S 2 ft at 5 seconds, becoming NE 3 ft at 6 seconds and SW 1 foot at 5 seconds.

THU NIGHT
NE winds 5 kt, increasing to 5 to 10 kt after midnight. Seas 2 ft. Wave Detail: NE 2 ft at 6 seconds.

FRI
NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 6 seconds.

FRI NIGHT
NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 5 seconds.

SAT
E winds 5 to 10 kt. Seas 2 ft. A slight chance of showers.

SAT NIGHT
E winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely.

SUN
SE winds 20 to 25 kt. Seas 4 to 6 ft. Showers with a slight chance of tstms.

SUN NIGHT
SW winds 20 to 25 kt. Seas 7 to 9 ft. Showers with a slight chance of tstms.

Winds and seas higher in and near tstms.


AMZ352-112300
Waters from Edisto Beach SC to Savannah GA out 20 NM
441 AM EST Wed Feb 11 2026

TODAY
SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at 12 seconds. Showers likely until late afternoon, then a chance of showers late.

TONIGHT
W winds 10 to 15 kt, becoming N with gusts to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and NE 2 ft at 12 seconds. Showers with a slight chance of tstms in the evening.

THU
NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and S 1 foot at 5 seconds.

THU NIGHT
E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 6 seconds.

FRI
NE winds 10 to 15 kt. Seas 2 ft. Wave Detail: NE 2 ft at 6 seconds.

FRI NIGHT
NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 5 seconds.

SAT
NE winds 10 kt. Seas 2 ft. A slight chance of showers.

SAT NIGHT
E winds 10 to 15 kt. Seas 2 ft. Showers likely.

SUN
S winds 15 to 20 kt. Seas 4 to 5 ft. Showers.

SUN NIGHT
W winds 15 to 20 kt. Seas 5 to 7 ft. Showers.

Winds and seas higher in and near tstms.


AMZ354-112300
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary
441 AM EST Wed Feb 11 2026

TODAY
SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 13 seconds. Showers likely, mainly this morning.

TONIGHT
W winds 10 to 15 kt, becoming N with gusts to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 12 seconds. Showers likely with a slight chance of tstms in the evening with vsby 1 NM or less.

THU
NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and S 1 foot at 4 seconds.

THU NIGHT
E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds.

FRI
NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds.

FRI NIGHT
NE winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds. A slight chance of showers in the evening.

SAT
NE winds 10 kt. Seas 2 ft. A chance of showers.

SAT NIGHT
E winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely.

SUN
S winds 20 to 25 kt. Seas 4 to 6 ft. Showers.

SUN NIGHT
W winds 20 to 25 kt. Seas 4 to 6 ft. Showers.

Winds and seas higher in and near tstms.


AMZ374-112300
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM
441 AM EST Wed Feb 11 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

TODAY
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and E 3 ft at 12 seconds. Showers likely, mainly this morning.

TONIGHT
W winds 10 to 15 kt, becoming N 15 to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and NE 3 ft at 12 seconds. Showers likely with a slight chance of tstms in the evening, then a slight chance of showers after midnight. Vsby 1 to 3 NM in the evening.

THU
NE winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 5 seconds and S 1 foot at 5 seconds.

THU NIGHT
NE winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: NE 4 ft at 7 seconds, becoming NE 3 ft at 7 seconds.

FRI
NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds.

FRI NIGHT
NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds. A slight chance of showers.

SAT
E winds 10 kt. Seas 2 to 3 ft. A chance of showers.

SAT NIGHT
SE winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely.

SUN
S winds 20 to 25 kt. Seas 5 to 7 ft. Showers with a slight chance of tstms.

SUN NIGHT
SW winds 20 to 25 kt. Seas 6 to 8 ft. Showers with a slight chance of tstms.

Winds and seas higher in and near tstms.