NWS Marine Forecast


   AMZ400-062000-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  1229 AM EST Sat Dec 6 2025      .SYNOPSIS...    A frontal boundary will stall south of the forecast waters today and  into tonight. A wave of low pressure will then develop along  this front just south of the northeast Florida waters late  tonight with widespread rainfall and a few embedded thunderstorms  overspreading our local waters early Sunday into Sunday night.  Low pressure will move offshore on Sunday night, resulting in  strengthening northwest winds. High pressure will then build  over the southeast states early next week, creating strengthening  northerly winds and Small Craft Advisory conditions from Monday  through Tuesday evening.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Dec 04, 2025 at 1200 UTC...    66 nautical miles east northeast of Flagler Beach.  73 nautical miles east of Saint Augustine Beach.  85 nautical miles east southeast of Jacksonville Beach.  94 nautical miles east of St Simons Island.    This data courtesy of the Naval Oceanographic Office.      $$
   AMZ470-472-474-062000-  Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to  60 NM-  Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-  Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-  1229 AM EST Sat Dec 6 2025    SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON  THROUGH THIS EVENING    REST OF TONIGHT  Northwest winds 10 to 15 knots, diminishing to  5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave  Detail: West 3 feet at 5 seconds and east 3 feet at 10 seconds. A  slight chance of showers late this evening.  SATURDAY  Northwest winds 5 to 10 knots, increasing to 15 to  20 knots in the afternoon. Seas 3 to 5 feet, occasionally to  6 feet. Wave Detail: Northwest 4 feet at 4 seconds and east  3 feet at 10 seconds. A slight chance of showers in the morning,  then a chance of showers in the afternoon.  SATURDAY NIGHT  North winds 15 to 20 knots, becoming northeast  5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to  6 feet. Wave Detail: North 4 feet at 5 seconds and east 3 feet at  10 seconds. A chance of showers in the evening, then showers  likely after midnight.  SUNDAY  Northeast winds 5 to 10 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: Northeast 4 feet at  9 seconds. A slight chance of thunderstorms. Showers.  SUNDAY NIGHT  North winds 10 to 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: Northeast 4 feet at  9 seconds. Showers in the evening, then a chance of showers with  a slight chance of thunderstorms after midnight.  MONDAY  Northwest winds 10 to 15 knots, becoming north 15 to  20 knots in the afternoon. Seas 3 to 5 feet, occasionally to  6 feet. Wave Detail: North 5 feet at 5 seconds and east 4 feet at  9 seconds. A slight chance of showers in the morning.  MONDAY NIGHT  North winds 20 to 25 knots, diminishing to 15 to  20 knots after midnight. Seas 5 to 7 feet, occasionally to  9 feet.  TUESDAY  North winds 10 to 15 knots. Seas 5 to 7 feet,  occasionally to 9 feet.  WEDNESDAY  West winds 10 to 15 knots. Seas 4 to 6 feet,  occasionally to 8 feet.    Winds and seas higher in and near thunderstorms.    $$