NWS Marine Forecast


   AMZ400-280030-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  516 AM EDT Mon Jul 27 2026      .SYNOPSIS...    A nearly stationary frontal boundary just north of the local waters  will dissipate early this week. Another front will approach from the  north during the middle of the week with offshore southwest winds  increasing to near advisory levels from Wednesday through Friday.  This will bring a return to a stormy weather pattern to the local  waters late in the week and into next weekend.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Jul 26, 2026 at 0000 UTC...    46 nautical miles east of Flagler Beach.  49 nautical miles east of Saint Augustine Beach.  60 nautical miles east southeast of Jacksonville Beach.  68 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-280030-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  516 AM EDT Mon Jul 27 2026    TODAY  Northwest winds 5 to 10 knots, becoming southeast this  afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at  4 seconds and east 2 feet at 8 seconds. Intracoastal waters light  chop.  TONIGHT  South winds around 10 knots, becoming southwest after  midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at  4 seconds and east 2 feet at 8 seconds. Intracoastal waters light  chop. A slight chance of showers and thunderstorms in the  evening.  TUESDAY  Southwest winds 5 to 10 knots, becoming south 10 to  15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:  Southeast 2 feet at 4 seconds and east 2 feet at 8 seconds.  Intracoastal waters a moderate chop. A slight chance of showers  and thunderstorms in the afternoon.  TUESDAY NIGHT  Southwest winds 15 to 20 knots. Seas 2 to  4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at  4 seconds and east 2 feet at 8 seconds. Intracoastal waters  choppy.  WEDNESDAY  Southwest winds 10 to 15 knots. Seas 2 to 3 feet.  Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal waters a  moderate chop. Showers likely with a chance of thunderstorms in  the afternoon.  WEDNESDAY NIGHT  Southwest winds 15 to 20 knots. Seas 2 to  4 feet, occasionally to 5 feet. Wave Detail: Southwest 3 feet at  4 seconds. Intracoastal waters choppy. A chance of showers and  thunderstorms in the evening, then a slight chance of showers  after midnight.  THURSDAY THROUGH FRIDAY  Southwest winds 15 to 20 knots. Seas  2 to 3 feet. Intracoastal waters choppy. A chance of showers and  thunderstorms.    Winds and waves higher in and near thunderstorms.    $$