NWS Marine Forecast


   AMZ400-070315-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  812 AM EDT Thu Aug 6 2026      .SYNOPSIS...    Conditions are favorable for waterspout formation this morning  across the near and offshore waters. High pressure centered over  Bermuda will build westward toward the United States east coast  through the weekend shifting flow from east and southeast today to  more east late this week and into the upcoming weekend. A trough  of low pressure will move into the area on Friday, which will  increase east winds up to 15 knots with seas building to near 5  feet from Friday into Saturday. Daily rounds of showers and  thunderstorms will also continue, some of which will produce  strong gusty winds, heavy rain, and frequent lightning strikes.    .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Aug 05, 2026 at 0000 UTC...    46 nautical miles east of Flagler Beach.  53 nautical miles east of Saint Augustine Beach.  64 nautical miles east southeast of Jacksonville Beach.  68 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-070315-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  812 AM EDT Thu Aug 6 2026    REST OF TODAY  Southeast winds 5 to 10 knots. Seas around  2 feet. Wave Detail: East 2 feet at 7 seconds. Intracoastal  waters light chop. A chance of showers and thunderstorms, mainly  this morning.  TONIGHT  Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave  Detail: East 2 feet at 7 seconds. Intracoastal waters light chop.  A slight chance of showers and thunderstorms.  FRIDAY  East winds 10 to 15 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds.  Intracoastal waters a moderate chop. A chance of showers and  thunderstorms.  FRIDAY NIGHT  East winds 10 to 15 knots, becoming southeast  5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal  waters a moderate chop. A chance of showers and thunderstorms.  SATURDAY  Southeast winds 5 to 10 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.  Intracoastal waters light chop. A chance of thunderstorms.  Showers likely, mainly in the morning.  SATURDAY NIGHT  South winds 5 to 10 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.  Intracoastal waters light chop. A slight chance of showers and  thunderstorms.  SUNDAY THROUGH MONDAY  South winds 5 to 10 knots. Seas 2 to  3 feet. Intracoastal waters light chop. A slight chance of  showers and thunderstorms.    Winds and waves higher in and near thunderstorms.    $$