NWS Marine Forecast


   AMZ400-051530-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  817 PM EDT Sun Oct 4 2026      .SYNOPSIS...    Showers and thunderstorms continue to push across the local waters  this evening. Outside of thunderstorm activity, winds and seas are  expected to remain below Caution levels through at least Monday  afternoon.    Deteriorating conditions are expected Tuesday as a cold front enters  and stalls over the area waters. Following the front, a strong high  pressure building will wedge down the southeastern seaboard,  initiating a prolonged surge of strong northeasterly winds and high  seas across our local waters. Small Craft Advisory conditions begin  in the southeast Georgia waters on Tuesday and gradually spreads  southward into the northeast Florida waters by late Tuesday. A Gale  Watch is in effect for Tuesday afternoon into evening for the  southeast georgia waters for potential frequent gale force gusts.  Northeasterly winds are expected to gradually decrease through  Friday and shift onshore next weekend.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Oct 04, 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.  76 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ452-454-051530-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  817 PM EDT Sun Oct 4 2026    TONIGHT  Southeast winds 5 to 10 knots, becoming southwest  after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet  at 6 seconds. Intracoastal waters light chop. Showers likely with  a chance of thunderstorms this evening, then a slight chance of  showers and thunderstorms after midnight.  MONDAY  Northwest winds around 5 knots, becoming northeast in  the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at  6 seconds. Intracoastal waters light chop. A chance of showers  with a slight chance of thunderstorms in the morning, then  showers with a chance of thunderstorms in the afternoon.  MONDAY NIGHT  Northeast winds 10 to 15 knots. Seas 2 to 3 feet.  Wave Detail: East 3 feet at 6 seconds. Intracoastal waters a  moderate chop. Showers with a chance of thunderstorms.  TUESDAY  Northeast winds 15 to 20 knots, increasing to 20 to  25 knots in the afternoon. Seas 2 to 4 feet, occasionally to  5 feet, building to 4 to 6 feet, occasionally to 8 feet in the  afternoon. Wave Detail: Northeast 4 feet at 5 seconds, becoming  northeast 6 feet at 7 seconds. Intracoastal waters rough. Showers  with a chance of thunderstorms.  TUESDAY NIGHT  Northeast winds 20 to 25 knots. Seas 6 to  9 feet, occasionally to 11 feet. Wave Detail: East 8 feet at  7 seconds. Intracoastal waters rough. Showers with a chance of  thunderstorms in the evening, then showers likely with a slight  chance of thunderstorms after midnight.  WEDNESDAY  Northeast winds 20 to 25 knots, increasing to 25 to  30 knots in the afternoon. Seas 7 to 10 feet, occasionally to  13 feet. Wave Detail: Northeast 10 feet at 8 seconds.  Intracoastal waters very rough. Showers. A slight chance of  thunderstorms in the morning, then a chance of thunderstorms in  the afternoon.  WEDNESDAY NIGHT  Northeast winds 25 to 30 knots, diminishing to  20 to 25 knots after midnight. Seas 7 to 10 feet, occasionally to  13 feet. Intracoastal waters very rough. A chance of showers and  thunderstorms.  THURSDAY  Northeast winds 20 to 25 knots, diminishing to 15 to  20 knots. Seas 5 to 8 feet, occasionally to 10 feet, subsiding to  5 to 6 feet, occasionally to 8 feet after midnight. Intracoastal  waters rough. A chance of showers. A slight chance of  thunderstorms in the morning, then a chance of thunderstorms.  FRIDAY  East winds 15 to 20 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Intracoastal waters choppy. Showers  likely.    Winds and waves higher in and near thunderstorms.    $$