NWS Marine Forecast


   AMZ400-062100-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  225 AM EDT Thu Aug 6 2026      .SYNOPSIS...    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. Sea heights will gradually rise into early Friday  due to the persistent southeast winds, which may reach up to 15  knots from Friday through Saturday. Daily rounds of showers and  thunderstorms will also continue daily, some of which will produce  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.      $$
   AMZ450-452-454-062100-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  225 AM EDT Thu Aug 6 2026    REST OF TONIGHT  South winds 5 to 10 knots. Seas around 2 feet.  Wave Detail: Southeast 2 feet at 7 seconds. Intracoastal waters  light chop. A chance of showers with a slight chance of  thunderstorms.  THURSDAY  Southeast winds 5 to 10 knots. Seas around 2 feet.  Wave Detail: East 2 feet at 7 seconds. Intracoastal waters light  chop. A slight chance of showers and thunderstorms.  THURSDAY NIGHT  Southeast winds around 10 knots. Seas 2 to  3 feet. Wave Detail: Southeast 3 feet at 7 seconds. Intracoastal  waters light chop. A slight chance of showers after midnight.  FRIDAY  East winds 10 to 15 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds.  Intracoastal waters a moderate chop. A chance of showers and  thunderstorms.  FRIDAY NIGHT  East winds 10 to 15 knots, becoming southeast  5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal  waters a moderate chop. A chance of showers and thunderstorms.  SATURDAY  Southeast winds 5 to 10 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.  Intracoastal waters light chop. A chance of thunderstorms.  Showers likely, mainly in the morning.  SATURDAY NIGHT  South winds 5 to 10 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Intracoastal waters light chop. A slight  chance of showers and thunderstorms.  SUNDAY THROUGH MONDAY  South winds 5 to 10 knots. Seas 2 to  3 feet. Intracoastal waters light chop. A slight chance of  showers and thunderstorms.    Winds and waves higher in and near thunderstorms.    $$