NWS Marine Forecast


   AMZ400-202000-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  1223 AM EST Thu Nov 20 2025      .SYNOPSIS...    High pressure ridging over the Florida panhandle will weaken while  shifting slowly southeastward by Friday afternoon and Saturday. A  weakening and mostly dry frontal boundary will then push southward  through the Georgia waters on Saturday night, with this boundary  pushing across the northeast FL waters on Sunday morning. High  pressure will build east-southeastward from the Upper Midwest on  Sunday night towards the Mid-Atlantic states by early Tuesday, with  breezy onshore winds developing across our local waters from Sunday  afternoon through Monday afternoon. A stronger cold front may then  push eastward across the southeastern states next Wednesday and  Wednesday night, with southerly winds expected to develop ahead of  this front beginning on Tuesday.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Nov 18, 2025 at 1200 UTC...    50 nautical miles east of Flagler Beach.  59 nautical miles east of Saint Augustine Beach.  76 nautical miles east of Jacksonville Beach.  85 nautical miles east of St Simons Island.    This data courtesy of the Naval Oceanographic Office.      $$
   AMZ450-452-454-202000-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  1223 AM EST Thu Nov 20 2025    REST OF TONIGHT  West winds 5 to 10 knots. Seas around 2 feet.  Wave Detail: East 2 feet at 7 seconds. Intracoastal waters light  chop.  THURSDAY  Northwest winds 5 to 10 knots, becoming northeast in  the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet  at 6 seconds. Intracoastal waters light chop.  THURSDAY NIGHT  East winds around 5 knots, becoming west after  midnight. Waves 1 foot or less. Intracoastal waters smooth.  FRIDAY  West winds around 5 knots, becoming southeast in the  afternoon. Waves 1 foot or less, then around 2 feet in the  afternoon. Intracoastal waters light chop.  FRIDAY NIGHT AND SATURDAY  Southwest winds 5 to 10 knots. Seas  around 2 feet. Wave Detail: Northeast 2 feet at 6 seconds.  Intracoastal waters light chop.  SATURDAY NIGHT  Southwest winds 5 to 10 knots, becoming west  after midnight. Seas around 2 feet. Intracoastal waters light  chop.  SUNDAY THROUGH MONDAY  Southeast winds 5 to 10 knots. Seas 2 to  3 feet. Intracoastal waters light chop.    $$