AMZ400-211915-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1204 AM EDT Thu May 21 2026
.SYNOPSIS...
High pressure will be centered to the east northeast this week and
through the weekend. Mainly southeast flow will continue through the
period with a daily sea breeze near the Atlantic Coast. Winds may
meet small craft exercise caution criteria in the late afternoon
and evening from Friday through Monday.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
May 20, 2026 at 0000 UTC...
50 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
71 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-211915- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1204 AM EDT Thu May 21 2026 REST OF TONIGHT South winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light chop. THURSDAY South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 9 seconds. Intracoastal waters a moderate chop. THURSDAY NIGHT South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 9 seconds and southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. FRIDAY South winds 5 to 10 knots, becoming southeast 15 to 20 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 9 seconds and southeast 3 feet at 5 seconds. Intracoastal waters choppy. FRIDAY NIGHT Southeast winds 15 to 20 knots, becoming south 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds and southeast 3 feet at 5 seconds. Intracoastal waters choppy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. SATURDAY AND SATURDAY NIGHT Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. SUNDAY THROUGH MONDAY Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-211915- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1204 AM EDT Thu May 21 2026 REST OF TONIGHT South winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light chop. THURSDAY South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 9 seconds. Intracoastal waters a moderate chop. THURSDAY NIGHT South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 9 seconds and southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. FRIDAY South winds 5 to 10 knots, becoming southeast 15 to 20 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 9 seconds and southeast 3 feet at 5 seconds. Intracoastal waters choppy. FRIDAY NIGHT Southeast winds 15 to 20 knots, becoming south 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds and southeast 3 feet at 5 seconds. Intracoastal waters choppy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. SATURDAY AND SATURDAY NIGHT Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. SUNDAY THROUGH MONDAY Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$