NWS Marine Forecast


   AMZ400-120815-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  114 PM EDT Sat Jul 11 2026      .SYNOPSIS...    The region will be between high pressure to the south, and frontal  zone just to the north through the middle of next week.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Jul 11, 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.  66 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-120815-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  114 PM EDT Sat Jul 11 2026    SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 5 PM THIS  AFTERNOON TO 10 PM EDT THIS EVENING    TONIGHT  Southwest winds 15 to 20 knots, becoming west 10 to  15 knots after midnight. Seas 2 to 4 feet, occasionally to  5 feet. Wave Detail: South 3 feet at 5 seconds. Intracoastal  waters choppy. A slight chance of showers and thunderstorms this  evening.  SUNDAY  Southwest winds 10 to 15 knots, becoming south in the  afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at  4 seconds and southeast 2 feet at 8 seconds. Intracoastal waters  a moderate chop. A slight chance of showers and thunderstorms in  the afternoon.  SUNDAY NIGHT  Southwest winds 10 to 15 knots. Seas 2 to 3 feet.  Wave Detail: South 3 feet at 4 seconds. Intracoastal waters a  moderate chop.  MONDAY  Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave  Detail: Southwest 2 feet at 5 seconds. Intracoastal waters a  moderate chop. A slight chance of showers and thunderstorms in  the morning, then showers and thunderstorms likely in the  afternoon.  MONDAY NIGHT  West winds 10 to 15 knots. Seas 2 to 3 feet. Wave  Detail: Southwest 2 feet at 4 seconds. Intracoastal waters a  moderate chop. A chance of showers with a slight chance of  thunderstorms in the evening.  TUESDAY  Southwest winds around 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.  TUESDAY NIGHT  Southwest winds around 10 knots, becoming west  after midnight. Seas around 2 feet. Intracoastal waters light  chop. A slight chance of showers and thunderstorms in the  evening.  WEDNESDAY THROUGH THURSDAY  Southwest winds 10 to 15 knots.  Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight  chance of showers and thunderstorms.    Winds and waves higher in and near thunderstorms.    $$