NWS Marine Forecast


   AMZ400-270900-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  225 PM EDT Sat Sep 26 2026      .SYNOPSIS...    Strong low pressure off the mid-Atlantic coast will track further  away to the north through the end of the weekend as high pressure  builds southward from the eastern Great Lakes into the southeast  U.S. As low pressure lifts away, seas will gradually diminish  through this evening, ending small craft conditions. High pressure  will shift over the region Sunday and Monday with prevailing west to  southwest winds, turning southeasterly in the afternoon nearshore  from the Atlantic seabreeze circulation. High pressure will shift  east of the waters midweek with southerly winds, turning easterly in  the afternoon over the nearshore waters from seabreeze circulation.  Increasing moisture will bring a return of scattered showers and  isolated thunderstorms over the waters by midweek.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Sep 26, 2026 at 0000 UTC...    54 nautical miles east of Flagler Beach.  62 nautical miles east of Saint Augustine Beach.  74 nautical miles east southeast of Jacksonville Beach.  84 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-270900-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  225 PM EDT Sat Sep 26 2026    SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 11 PM EDT THIS  EVENING    REST OF TODAY  North winds 5 to 10 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Wave Detail: East 6 feet at 12 seconds.  Intracoastal waters light chop.  TONIGHT  Northeast winds 5 to 10 knots, becoming northwest  after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave  Detail: East 5 feet at 13 seconds. Intracoastal waters light  chop.  SUNDAY  Northwest winds 5 to 10 knots, becoming southeast 10 to  15 knots in the afternoon. Seas 3 to 5 feet, occasionally to  6 feet. Wave Detail: East 5 feet at 13 seconds. Intracoastal  waters a moderate chop.  SUNDAY NIGHT  South winds 10 to 15 knots, becoming southwest  after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave  Detail: East 4 feet at 12 seconds and south 3 feet at 4 seconds.  Intracoastal waters a moderate chop.  MONDAY  Southwest winds 5 to 10 knots, becoming southeast 10 to  15 knots in the afternoon. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: South 3 feet at 4 seconds and east 3 feet at  11 seconds. Intracoastal waters a moderate chop.  MONDAY NIGHT  South winds 10 to 15 knots, becoming southwest  5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to  5 feet. Wave Detail: Southeast 3 feet at 4 seconds and east  2 feet at 11 seconds. Intracoastal waters a moderate chop.  TUESDAY THROUGH WEDNESDAY  Southeast winds 10 to 15 knots. Seas  2 to 3 feet. Intracoastal waters a moderate chop.    $$