AMZ400-290900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
229 PM EDT Tue Apr 28 2026
.SYNOPSIS...
High pressure over the southeastern states will weaken as it shifts
offshore this evening allowing for seas to gradually subside
offshore tonight. A cold front will enter the southeastern states on
Wednesday afternoon, bringing scattered showers and thunderstorms to
the Georgia waters Wednesday night and to the northeast Florida
waters on Thursday. This front will then stall across the northeast
Florida waters on Thursday night and Friday, keeping widely
scattered showers and thunderstorms in the forecast. A wave of low
pressure will develop over the Gulf by late Friday night or
Saturday, with widespread showers and possibly a few strong
thunderstorms overspreading our local waters by Saturday afternoon
and evening, with activity expected to continue into Sunday across
the northeast Florida waters. Small Craft Advisory conditions may
develop on Saturday as southwesterly winds increase ahead of this
approaching wave of low pressure. The front will shift south of the
northeast Florida waters on Sunday, with northerly winds
strengthening in wake of departing low pressure by late Saturday
night.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Apr 28, 2026 at 0000 UTC...
54 nautical miles east of Flagler Beach.
62 nautical miles east of Saint Augustine Beach.
74 nautical miles east southeast of Jacksonville Beach.
81 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-290900- 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- 229 PM EDT Tue Apr 28 2026 REST OF TODAY East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal waters a moderate chop. TONIGHT South winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 8 seconds and southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. WEDNESDAY South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 3 feet at 10 seconds. Intracoastal waters a moderate chop. WEDNESDAY NIGHT Southwest winds 10 to 15 knots, becoming west after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 3 feet at 10 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms after midnight. THURSDAY AND THURSDAY NIGHT East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 11 seconds and southeast 2 feet at 5 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. FRIDAY East winds 5 to 10 knots, becoming south. Seas 2 to 3 feet. Wave Detail: East 3 feet at 12 seconds and east 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. A slight chance of showers in the evening. A chance of showers after midnight. SATURDAY West winds 15 to 20 knots, becoming north. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. A chance of showers in the morning, then showers likely through the night. A chance of thunderstorms. A chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-290900- 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- 229 PM EDT Tue Apr 28 2026 REST OF TODAY East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal waters a moderate chop. TONIGHT South winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 8 seconds and southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. WEDNESDAY South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 3 feet at 10 seconds. Intracoastal waters a moderate chop. WEDNESDAY NIGHT Southwest winds 10 to 15 knots, becoming west after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and east 3 feet at 10 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms after midnight. THURSDAY AND THURSDAY NIGHT East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 11 seconds and southeast 2 feet at 5 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of thunderstorms. FRIDAY East winds 5 to 10 knots, becoming south. Seas 2 to 3 feet. Wave Detail: East 3 feet at 12 seconds and east 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. A slight chance of showers in the evening. A chance of showers after midnight. SATURDAY West winds 15 to 20 knots, becoming north. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. A chance of showers in the morning, then showers likely through the night. A chance of thunderstorms. A chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$