NWS Marine Forecast


   AMZ400-061445-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  743 PM EDT Sat Sep 5 2026      .SYNOPSIS...    Weak high pressure remains to the south of the waters today while  a frontal boundary slowly moves into the southeast states Sunday  through Monday. The weak frontal passage is anticipated Monday night  as high pressure builds to the northeast of the forecast waters.  A brief period of Small Craft Exercise Caution conditions is  possible mainly over the Georgia waters Tuesday. The front  weakens mid- week as high pressure builds south of the region.  Another front approaches from the north early next weekend.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Sep 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.  76 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-061445-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  743 PM EDT Sat Sep 5 2026    REST OF TONIGHT  South winds 5 to 10 knots, becoming west. Seas  around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds.  Intracoastal waters light chop. A slight chance of showers early.  SUNDAY  West winds 5 to 10 knots, becoming south in the  afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet at  4 seconds. Intracoastal waters light chop. A chance of showers  and thunderstorms in the afternoon.  SUNDAY NIGHT  Southwest winds 5 to 10 knots, becoming northwest  after midnight. Seas around 2 feet. Intracoastal waters light  chop. A chance of showers. A chance of thunderstorms, mainly in  the evening.  MONDAY  North winds 5 to 10 knots, becoming northeast in the  afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at  9 seconds. Intracoastal waters light chop. A chance of  thunderstorms. Showers.  MONDAY NIGHT AND TUESDAY  Northeast winds 10 to 15 knots. Seas  2 to 3 feet. Wave Detail: Northeast 3 feet at 7 seconds.  Intracoastal waters a moderate chop. Showers likely with a chance  of thunderstorms.  TUESDAY NIGHT  East winds 10 to 15 knots, diminishing to 5 to  10 knots after midnight. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: Northeast 4 feet at 7 seconds. Intracoastal  waters a moderate chop. A chance of showers and thunderstorms,  mainly in the evening.  WEDNESDAY THROUGH THURSDAY  Southwest winds 5 to 10 knots. Seas  2 to 4 feet, occasionally to 5 feet. Intracoastal waters light  chop. A chance of showers and thunderstorms.    Winds and waves higher in and near thunderstorms.    $$