NWS Marine Forecast


   AMZ400-081630-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  926 PM EDT Mon Sep 7 2026      .SYNOPSIS...    A frontal boundary will shift south of area waters tonight into  Tuesday as high pressure strengthens to the northeast, persisting  onshore flow. High pressure then builds east of the local waters by  Thursday then extends across the Florida peninsula Friday into the  weekend with a return of westerly winds and the afternoon east coast  sea breeze.    .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Sep 07, 2026 at 0000 UTC...    50 nautical miles east of Flagler Beach.  53 nautical miles east of Saint Augustine Beach.  64 nautical miles east southeast of Jacksonville Beach.  76 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.    $$
   AMZ452-454-081630-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  926 PM EDT Mon Sep 7 2026    REST OF TONIGHT  Northeast winds 10 to 15 knots. Seas 2 to 4  feet. Wave Detail: Northeast 3 feet at 4 seconds and northeast 2  feet at 7 seconds. Intracoastal waters a moderate chop. A chance  of showers with a slight chance of thunderstorms.  TUESDAY  East winds 10 to 15 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: Northeast 3 feet at  6 seconds. Intracoastal waters a moderate chop. A chance of  showers. A slight chance of thunderstorms in the morning, then a  chance of thunderstorms in the afternoon.  TUESDAY NIGHT  East winds 10 to 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: Northeast 4 feet at  7 seconds. Intracoastal waters a moderate chop. A slight chance  of thunderstorms in the evening. A chance of showers.  WEDNESDAY  East winds 5 to 10 knots. Seas around 4 feet,  occasionally to 5 feet. Wave Detail: Northeast 4 feet at  8 seconds. Intracoastal waters light chop. A chance of showers. A  slight chance of thunderstorms in the morning, then a chance of  thunderstorms in the afternoon.  WEDNESDAY NIGHT  Southeast winds 5 to 10 knots. Seas 3 to  4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at  8 seconds. Intracoastal waters light chop. A slight chance of  showers and thunderstorms.  THURSDAY  Southeast winds 5 to 10 knots. Seas around 3 feet.  Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light  chop. A slight chance of showers and thunderstorms in the  morning, then a chance of showers and thunderstorms in the  afternoon.  THURSDAY NIGHT  South winds 5 to 10 knots, becoming southwest  after midnight. Seas 2 to 3 feet. Intracoastal waters light chop.  A slight chance of showers and thunderstorms in the evening.  FRIDAY THROUGH SATURDAY  South winds 5 to 10 knots. Seas 2 to  3 feet. Intracoastal waters light chop. A chance of showers and  thunderstorms.    Winds and waves higher in and near thunderstorms.    $$