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FZUS52 KCHS 180437

CWFCHS



Coastal Waters Forecast

National Weather Service Charleston SC

1237 AM EDT Sat May 18 2024



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



AMZ300-181715-

1237 AM EDT Sat May 18 2024



.Synopsis for the coastal waters of south coastal South Carolina

and north coastal Georgia...

A storm system will bring impacts to our area this weekend. High

pressure returns to our region next week. 



$$



AMZ330-181715-

Charleston Harbor-

1237 AM EDT Sat May 18 2024



.REST OF TONIGHT...S winds 10 kt. 

.SAT...SW winds 10 kt. Showers likely. A slight chance of tstms

in the morning, then a chance of tstms in the afternoon. 

.SAT NIGHT...SW winds 5 to 10 kt. A chance of tstms. Showers

likely, mainly in the evening. 

.SUN...W winds 5 kt, increasing to 10 kt in the afternoon.

Showers likely with a chance of tstms. 

.SUN NIGHT...NE winds 5 to 10 kt. A chance of tstms. Showers

likely, mainly in the evening. 

.MON...NE winds 10 to 15 kt. A slight chance of tstms in the

morning. A slight chance of showers. 

.MON NIGHT...NE winds 5 to 10 kt. 

.TUE...NE winds 10 kt. 

.TUE NIGHT...SE winds 5 to 10 kt. 

.WED...SW winds 5 to 10 kt. 

.WED NIGHT...S winds 5 to 10 kt.  



Winds and waves higher in and near tstms.



Unless otherwise noted, waves 1 foot or less. 



Charleston Harbor water temperature 77 degrees. 



$$



AMZ350-181715-

Waters from South Santee River to Edisto Beach SC out 20 NM-

1237 AM EDT Sat May 18 2024



.REST OF TONIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail:

SE 2 ft at 7 seconds. A slight chance of showers. 

.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft

at 5 seconds and E 1 foot at 9 seconds. A chance of showers. A

slight chance of tstms in the morning, then a chance of tstms in

the afternoon. 

.SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft

at 5 seconds and E 1 foot at 9 seconds. A chance of tstms.

Showers.

.SUN...W winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at

5 seconds and E 1 foot at 8 seconds. Showers likely with a chance

of tstms. 

.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft, building to

3 to 4 ft after midnight. Wave Detail: S 2 ft at 5 seconds and E

2 ft at 9 seconds, becoming NE 3 ft at 6 seconds and S 2 ft at

5 seconds. A chance of tstms. Showers likely, mainly in the

evening. 

.MON...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the

afternoon. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and

S 1 foot at 6 seconds. A chance of showers and tstms in the

morning, then a slight chance of showers in the afternoon. 

.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.

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

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

.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. 

.WED NIGHT...S winds 10 kt. Seas 2 ft.  



Winds and seas higher in and near tstms.



$$



AMZ352-181715-

Waters from Edisto Beach SC to Savannah GA out 20 NM-

1237 AM EDT Sat May 18 2024



.REST OF TONIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S

2 ft at 4 seconds and SE 1 foot at 8 seconds. A slight chance of

showers. 

.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft

at 5 seconds and E 1 foot at 9 seconds. A chance of tstms. A

chance of showers in the morning, then showers likely in the

afternoon. 

.SAT NIGHT...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at

5 seconds and SE 1 foot at 9 seconds. A chance of tstms. Showers.

.SUN...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft

at 4 seconds and SE 1 foot at 8 seconds. A chance of tstms. A

chance of showers in the morning, then showers likely in the

afternoon. 

.SUN NIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt with

gusts to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to

4 ft after midnight. Wave Detail: SW 2 ft at 5 seconds and E 2 ft

at 8 seconds, becoming E 2 ft at 7 seconds. A chance of tstms.

Showers likely, mainly in the evening. 

.MON...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the

afternoon. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and

S 1 foot at 6 seconds. A chance of showers and tstms in the

morning, then a slight chance of showers in the afternoon. 

.MON NIGHT...NE winds 10 kt. Seas 2 to 3 ft. 

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

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

.WED...SW winds 5 to 10 kt. Seas 2 ft. 

.WED NIGHT...S winds 5 to 10 kt. Seas 2 ft.  



Winds and seas higher in and near tstms.



$$



AMZ354-181715-

Waters from Savannah GA to Altamaha Sound GA out 20 NM, including

Grays Reef National Marine Sanctuary-

1237 AM EDT Sat May 18 2024



.REST OF TONIGHT...S winds 10 to 15 kt, gusts to around 20 kt

early. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot 

at 8 seconds. Showers likely early. 

.SAT...SW winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at

4 seconds and E 1 foot at 9 seconds. A chance of showers with a

slight chance of tstms in the morning, then showers likely with a

chance of tstms in the afternoon. 

.SAT NIGHT...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at

4 seconds and E 1 foot at 9 seconds. A chance of tstms. Showers.

.SUN...W winds 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at

4 seconds and E 1 foot at 8 seconds. A chance of tstms. A chance

of showers in the morning, then showers likely in the afternoon. 

.SUN NIGHT...NW winds 10 kt, becoming N after midnight. Seas 2 to

3 ft. Wave Detail: SW 2 ft at 5 seconds and NE 2 ft at 8 seconds.

A chance of tstms. Showers likely, mainly in the evening. 

.MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft

at 5 seconds and S 1 foot at 5 seconds. A chance of tstms in the

morning. A slight chance of showers. 

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

.TUE...NE winds 10 kt. Seas 2 to 3 ft. 

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

.WED...E winds 5 to 10 kt. Seas 2 to 3 ft. 

.WED NIGHT...S winds 10 kt. Seas 2 ft.  



Winds and seas higher in and near tstms.



$$



AMZ374-181715-

Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-

1237 AM EDT Sat May 18 2024



.REST OF TONIGHT...S winds 10 to 15 kt, gusts to around 20 kt

early. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 

foot at 8 seconds. Showers likely early. 

.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft

at 4 seconds and SE 1 foot at 9 seconds. A chance of showers. A

slight chance of tstms in the morning, then a chance of tstms in

the afternoon. 

.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S

2 ft at 4 seconds and E 2 ft at 9 seconds. A chance of tstms.

Showers.

.SUN...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft

at 5 seconds and E 2 ft at 8 seconds. Showers likely with a

chance of tstms. 

.SUN NIGHT...NW winds 10 kt, becoming N after midnight. Seas 2 to

3 ft, building to 3 to 4 ft after midnight. Wave Detail: SW 2 ft

at 5 seconds and E 2 ft at 8 seconds, becoming NE 3 ft at

8 seconds and NW 2 ft at 5 seconds. A chance of tstms. Showers

likely, mainly in the evening. 

.MON...N winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: N 4 ft

at 5 seconds and S 2 ft at 5 seconds. A chance of tstms in the

morning. A chance of showers. 

.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight

chance of showers. 

.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of

showers. 

.TUE NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft.

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

.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.  



Winds and seas higher in and near tstms.



$$