AMZ300-221100-
539 PM EDT Sat Mar 21 2026
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through the weekend. A backdoor cold
front will drop through the area early next week, followed by
another area of high pressure.
$$
AMZ354-221100- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 539 PM EDT Sat Mar 21 2026 TONIGHT SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 4 seconds. SUN W winds 10 to 15 kt, becoming SW in the afternoon. Seas 3 to 4 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 4 seconds. SUN NIGHT SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 3 ft at 9 seconds. MON SW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 9 seconds, becoming SW 3 ft at 4 seconds and E 2 ft at 9 seconds. MON NIGHT SW winds 10 to 15 kt, becoming N 25 to 30 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds, becoming E 4 ft at 9 seconds and W 2 ft at 4 seconds. A chance of showers with a slight chance of tstms. TUE NE winds 25 to 30 kt. Seas 5 to 7 ft, building to 7 to 9 ft in the afternoon. Wave Detail: NE 7 ft at 6 seconds and S 1 foot at 4 seconds, becoming NE 9 ft at 7 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon. TUE NIGHT NE winds 20 to 25 kt with gusts to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 7 to 9 ft, subsiding to 6 to 8 ft after midnight. A chance of showers. WED NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of showers. WED NIGHT E winds 5 to 10 kt. Seas 4 to 5 ft. THU E winds 5 to 10 kt. Seas 3 to 4 ft. THU NIGHT S winds 10 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. $$
AMZ354-221100- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 539 PM EDT Sat Mar 21 2026 TONIGHT SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 4 seconds. SUN W winds 10 to 15 kt, becoming SW in the afternoon. Seas 3 to 4 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 4 seconds. SUN NIGHT SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 3 ft at 9 seconds. MON SW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 9 seconds, becoming SW 3 ft at 4 seconds and E 2 ft at 9 seconds. MON NIGHT SW winds 10 to 15 kt, becoming N 25 to 30 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds, becoming E 4 ft at 9 seconds and W 2 ft at 4 seconds. A chance of showers with a slight chance of tstms. TUE NE winds 25 to 30 kt. Seas 5 to 7 ft, building to 7 to 9 ft in the afternoon. Wave Detail: NE 7 ft at 6 seconds and S 1 foot at 4 seconds, becoming NE 9 ft at 7 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon. TUE NIGHT NE winds 20 to 25 kt with gusts to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 7 to 9 ft, subsiding to 6 to 8 ft after midnight. A chance of showers. WED NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of showers. WED NIGHT E winds 5 to 10 kt. Seas 4 to 5 ft. THU E winds 5 to 10 kt. Seas 3 to 4 ft. THU NIGHT S winds 10 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. $$