NWS Marine Forecast


   AMZ400-151930-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  1228 AM EDT Tue Jul 15 2025      .SYNOPSIS...    A weak area of low pressure over the Gulf Stream off the Florida  East Coast will begin to shift westward this morning. An increase in  showers and thunderstorms coverage is expected Today as the low  shifts westward across the Florida peninsula tonight and into the  eastern Gulf on Wednesday, with low pressure potentially  strengthening later in the week near the northern Gulf coast. NHC  has highlighted the northern Gulf coast for a low chance of  tropical/subtropical development for this week. Prevailing  northeasterly winds Today will shift to southerly by tonight as the  low shifts west of our local waters, with south-southeasterly winds  briefly strengthening to Caution levels tonight and Wednesday.  Rounds of showers and thunderstorms will continue through late in  the week as southerly winds prevail.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Jul 12, 2025 at 1200 UTC...    56 nautical miles east northeast of Flagler Beach.  59 nautical miles east of Saint Augustine Beach.  70 nautical miles east of Jacksonville Beach.  90 nautical miles east southeast of St Simons Island.    This data courtesy of the Naval Oceanographic Office.      $$
   AMZ450-452-454-151930-  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-  1228 AM EDT Tue Jul 15 2025    REST OF TONIGHT  Northeast winds 5 to 10 knots. Seas around  2 feet. Wave Detail: Northeast 2 feet at 6 seconds. Intracoastal  waters light chop. A slight chance of showers.  TUESDAY  Northeast winds around 10 knots, becoming east in the  afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at  5 seconds. Intracoastal waters a moderate chop. A chance of  showers and thunderstorms.  TUESDAY NIGHT  Southeast winds around 15 knots. Seas 2 to  4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at  6 seconds. Intracoastal waters a moderate chop. A chance of  showers with a slight chance of thunderstorms in the evening,  then a slight chance of showers after midnight.  WEDNESDAY  South winds 15 to 20 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: Southeast 4 feet at  6 seconds. Intracoastal waters choppy. A chance of showers with a  slight chance of thunderstorms in the morning, then showers  likely with a chance of thunderstorms in the afternoon.  WEDNESDAY NIGHT  South winds 10 to 15 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: Southeast 4 feet at  6 seconds. Intracoastal waters a moderate chop. A slight chance  of showers and thunderstorms in the evening.  THURSDAY  Southeast winds 10 to 15 knots. Seas 2 to 3 feet.  Wave Detail: Southeast 3 feet at 6 seconds. Intracoastal waters a  moderate 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 10 to 15 knots, diminishing to 5 to  10 knots after midnight. Seas 2 to 3 feet. Intracoastal waters a  moderate 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.    $$