Expires:202512101000;;298782
FZUS52 KCHS 092140
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
440 PM EST Tue Dec 9 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


AMZ374-101000-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
440 PM EST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH THURSDAY MORNING...

.TONIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE
4 ft at 8 seconds. 
.WED...W winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
to 25 kt in the afternoon. Seas 3 to 4 ft, building to 4 to 5 ft
in the afternoon. Wave Detail: E 4 ft at 10 seconds, becoming E
4 ft at 10 seconds and W 3 ft at 4 seconds. 
.WED NIGHT...W winds 20 to 25 kt with gusts to 30 kt. Seas 5 to
7 ft. Wave Detail: SW 6 ft at 5 seconds and E 4 ft at 10 seconds.
.THU...NW winds 15 to 20 kt. Seas 4 to 6 ft, subsiding to 3 to
4 ft in the afternoon. Wave Detail: NW 5 ft at 5 seconds and E
3 ft at 10 seconds, becoming W 4 ft at 4 seconds and E 2 ft at
9 seconds. 
.THU NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Wave Detail: W 3 ft at 4 seconds and E
2 ft at 9 seconds, becoming NW 3 ft at 4 seconds and E 2 ft at
9 seconds. 
.FRI...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: 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.
.SAT...W winds 5 to 10 kt. Seas 2 ft. 
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 ft. 
.SUN...NW winds 10 to 15 kt. Seas 2 to 3 ft. 
.SUN NIGHT...N winds 20 to 25 kt. Seas 4 to 5 ft.  

$$