NWS Marine Forecast


   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.    $$