NWS Marine Forecast


   AMZ400-150015-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  510 AM EDT Mon Jul 14 2025      .SYNOPSIS...    Troughing developing over the Gulf Stream waters this morning will  shift slowly westward this afternoon, crossing our local waters  tonight. Showers and thunderstorms will then increase in coverage on  Tuesday and Wednesday as troughing shifts westward across the  Florida peninsula and into the eastern Gulf, with low pressure  potentially organizing later in the week near the northern Gulf  coast. Prevailing northeasterly winds today will shift to southerly  by late Tuesday as troughing shifts west of our local waters, with  south-southeasterly winds briefly strengthening to Caution levels  near shore on Wednesday afternoon. Rounds of showers and  thunderstorms will continue through late in the week as southerly  winds prevail.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Jul 12, 2025 at 1200 UTC...    56 nautical miles east northeast of Flagler Beach.  59 nautical miles east of Saint Augustine Beach.  70 nautical miles east of Jacksonville Beach.  90 nautical miles east southeast of St Simons Island.    This data courtesy of the Naval Oceanographic Office.      $$
   AMZ450-452-454-150015-  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-  510 AM EDT Mon Jul 14 2025    TODAY  North winds around 10 knots, becoming northeast this  afternoon. Seas around 2 feet. Wave Detail: East 2 feet at  8 seconds. Intracoastal waters light chop. A slight chance of  thunderstorms. A slight chance of showers this morning, then a  chance of showers this afternoon.  TONIGHT  Northeast winds 5 to 10 knots. Seas around 2 feet.  Wave Detail: Northeast 2 feet at 5 seconds. Intracoastal waters  light chop. A slight chance of showers and thunderstorms.  TUESDAY  East winds 5 to 10 knots, becoming southeast in the  afternoon. Seas around 2 feet. Wave Detail: East 2 feet at  5 seconds. Intracoastal waters light chop. A chance of  thunderstorms. A chance of showers in the morning, then showers  likely in the afternoon.  TUESDAY NIGHT  Southeast winds 10 to 15 knots. Seas 2 to  3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal  waters a moderate chop. A chance of showers with a slight chance  of thunderstorms in the evening, then a slight chance of showers  after midnight.  WEDNESDAY  Southeast winds 10 to 15 knots. Seas 2 to 3 feet.  Wave Detail: Southeast 3 feet at 6 seconds. Intracoastal waters a  moderate chop. A chance of showers with a slight chance of  thunderstorms in the morning, then showers likely with a chance  of thunderstorms in the afternoon.  WEDNESDAY NIGHT  South winds 10 to 15 knots. Seas 2 to 3 feet.  Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a  moderate chop. A slight chance of thunderstorms in the evening. A  slight chance of showers.  THURSDAY  South winds 10 to 15 knots. Seas 2 to 3 feet.  Intracoastal waters a moderate chop. A chance of showers with a  slight chance of thunderstorms in the morning, then showers  likely with a chance of thunderstorms in the afternoon. A slight  chance of showers and thunderstorms in the evening.  FRIDAY  South winds 5 to 10 knots. Seas 2 to 3 feet.  Intracoastal waters light chop. A slight chance of showers and  thunderstorms in the morning, then a chance of showers and  thunderstorms in the afternoon. A slight chance of showers and  thunderstorms in the evening.    Winds and waves higher in and near thunderstorms.    $$