Station List

National Weather Service Marine Forecast FZUS52 KCHS

FZUS52 KCHS 210304
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1004 PM EST Mon Jan 20 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

AMZ300-211530
1004 PM EST Mon Jan 20 2025

.Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will prevail through tonight. A storm system will impact the area Tuesday afternoon through Wednesday morning. Another weak storm system could impact the area Thursday and Thursday night.

AMZ330-211530
Charleston Harbor
1004 PM EST Mon Jan 20 2025

REST OF TONIGHT
N winds 10 kt, becoming N 15 to 20 kt late. Waves 1 to 2 ft.

TUE
N winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the afternoon.

TUE NIGHT
N winds 15 kt with gusts to 20 kt. Sleet and snow.

WED
N winds 10 to 15 kt with gusts to 20 kt. A chance of snow with a slight chance of rain in the morning.

WED NIGHT
N winds 10 kt.

THU
N winds 10 kt. A chance of rain and freezing rain in the morning, then a chance of showers in the afternoon.

THU NIGHT
N winds 10 kt. A slight chance of showers in the evening.

FRI
NW winds 10 kt.

FRI NIGHT
NW winds 5 to 10 kt.

SAT
NE winds 5 kt.

SAT NIGHT
N winds 5 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 49 degrees.

AMZ350-211530
Waters from South Santee River to Edisto Beach SC out 20 NM
1004 PM EST Mon Jan 20 2025

SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE WEDNESDAY NIGHT

REST OF TONIGHT
NE winds increasing to 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 4 ft. Wave Detail: NE 2 ft at 4 seconds and W 1 foot at 3 seconds, becoming NE 3 ft at 4 seconds and SE 1 foot at 7 seconds.

TUE
N winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 6 seconds. A chance of rain in the afternoon.

TUE NIGHT
N winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 5 ft, building to 4 to 6 ft after midnight. Wave Detail: NE 5 ft at 6 seconds, becoming E 5 ft at 7 seconds. Rain and sleet. Snow after midnight.

WED
N winds 20 to 25 kt, becoming NE 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: NE 6 ft at 7 seconds. A chance of rain and snow in the morning.

WED NIGHT
NE winds 15 kt with gusts to 20 kt. Seas 5 to 6 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: E 6 ft at 9 seconds, becoming E 5 ft at 10 seconds. A chance of rain after midnight.

THU
N winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds. A chance of rain in the morning, then a chance of showers in the afternoon.

THU NIGHT
N winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. A slight chance of showers in the evening.

FRI
NW winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers.

FRI NIGHT
NW winds 10 to 15 kt. Seas 3 to 4 ft.

SAT
N winds 5 to 10 kt. Seas 2 to 3 ft.

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

AMZ352-211530
Waters from Edisto Beach SC to Savannah GA out 20 NM
1004 PM EST Mon Jan 20 2025

SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE WEDNESDAY NIGHT

REST OF TONIGHT
NE winds around 10 kt, increasing to 15 to 20 kt with gusts to 25 kt late. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 1 foot at 7 seconds.

TUE
N winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at 6 seconds. A chance of rain in the afternoon.

TUE NIGHT
N winds 20 to 25 kt. Seas 4 to 5 ft, building to 4 to 6 ft after midnight. Wave Detail: NE 4 ft at 6 seconds, becoming NE 5 ft at 6 seconds. Rain. Sleet in the evening, then snow after midnight.

WED
N winds 20 to 25 kt, becoming NE 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NE 6 ft at 7 seconds. A chance of rain and snow in the morning.

WED NIGHT
NE winds 15 kt with gusts to 20 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 9 seconds. A slight chance of rain.

THU
N winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 9 seconds. A chance of rain in the morning, then a chance of showers in the afternoon.

THU NIGHT
NW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. A slight chance of showers in the evening.

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

FRI NIGHT
NW winds 10 to 15 kt. Seas 3 to 4 ft.

SAT
N winds 5 to 10 kt. Seas 2 to 3 ft.

SAT NIGHT
N winds 5 to 10 kt. Seas 2 ft.

AMZ354-211530
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary
1004 PM EST Mon Jan 20 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST TUESDAY THROUGH THURSDAY MORNING

REST OF TONIGHT
NE winds 10 to 15 kt, becoming N 15 to 20 kt with gusts to 25 kt late. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and SE 1 foot at 8 seconds.

TUE
N winds 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at 6 seconds. A chance of rain in the afternoon.

TUE NIGHT
N winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 6 seconds. Rain. Snow likely after midnight.

WED
NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: NE 6 ft at 7 seconds. A chance of rain and snow in the morning.

WED NIGHT
N winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: NE 5 ft at 8 seconds. A slight chance of rain after midnight.

THU
N winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft in the afternoon. Wave Detail: NE 5 ft at 9 seconds, becoming E 5 ft at 9 seconds. A chance of rain in the morning, then a chance of showers in the afternoon.

THU NIGHT
NW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. A slight chance of showers in the evening.

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

FRI NIGHT
NW winds 10 to 15 kt. Seas 3 to 4 ft.

SAT
N winds 5 to 10 kt. Seas 2 to 3 ft.

SAT NIGHT
N winds 5 to 10 kt. Seas 2 ft.

AMZ374-211530
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM
1004 PM EST Mon Jan 20 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EST TUESDAY THROUGH LATE FRIDAY NIGHT

REST OF TONIGHT
N winds 10 to 15 kt increasing to 15 to 20 kt with gusts to 25 kt late. Seas 2 to 3 ft, building to 3 to 4 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 8 seconds, becoming NE 3 ft at 4 seconds and SE 1 foot at 7 seconds. A slight chance of rain late.

TUE
N winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 6 ft, building to 5 to 7 ft in the afternoon. Wave Detail: NE 5 ft at 5 seconds and SE 1 foot at 7 seconds, becoming NE 6 ft at 6 seconds and SE 1 foot at 7 seconds. A chance of rain in the afternoon.

TUE NIGHT
N winds 25 to 30 kt. Seas 6 to 8 ft, building to 7 to 9 ft after midnight. Wave Detail: NE 7 ft at 6 seconds and SE 4 ft at 7 seconds, becoming NE 8 ft at 7 seconds. Rain.

WED
N winds 20 to 25 kt with gusts to 30 kt. Seas 7 to 9 ft. Wave Detail: NE 8 ft at 7 seconds. Rain likely, mainly in the morning.

WED NIGHT
NE winds 15 to 20 kt with gusts to 25 kt. Seas 6 to 8 ft. Wave Detail: NE 8 ft at 9 seconds. A chance of rain.

THU
N winds 15 to 20 kt. Seas 6 to 7 ft, subsiding to 5 to 7 ft in the afternoon. Wave Detail: NE 7 ft at 10 seconds. A chance of rain in the morning, then a chance of showers in the afternoon.

THU NIGHT
N winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 7 ft, subsiding to 5 to 6 ft after midnight. A slight chance of showers in the evening.

FRI
NW winds 15 to 20 kt. Seas 4 to 6 ft. A slight chance of showers.

FRI NIGHT
NW winds 15 to 20 kt. Seas 4 to 6 ft.

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

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