NWS Marine Forecast


   AMZ400-140900-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  225 PM EDT Tue Oct 13 2026      .SYNOPSIS...    A high pressure system over the southeast states will slowly move  east, and push well offshore by Thursday night and Friday. A strong  cold front will cross the local waters late Friday night through  Saturday morning, followed by building high pressure well to the  north. Lighter winds and seas will continue through at least  Thursday. Deteriorating marine conditions expected Friday night and  into the weekend with Small Craft Advisories likely and potential  for Gale conditions.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Oct 13, 2026 at 0000 UTC...    50 nautical miles east of Flagler Beach.  53 nautical miles east of Saint Augustine Beach.  64 nautical miles east southeast of Jacksonville Beach.  76 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-140900-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  225 PM EDT Tue Oct 13 2026    REST OF TODAY  Northeast winds 5 to 10 knots. Seas around  2 feet. Wave Detail: Northeast 2 feet at 6 seconds. Intracoastal  waters light chop.  TONIGHT  East winds 5 to 10 knots, becoming northeast after  midnight. Seas around 2 feet. Wave Detail: Northeast 2 feet at  6 seconds. Intracoastal waters light chop.  WEDNESDAY  Northeast winds 5 to 10 knots. Seas 2 to 3 feet.  Wave Detail: Northeast 2 feet at 7 seconds. Intracoastal waters  light chop.  WEDNESDAY NIGHT  Southeast winds 5 to 10 knots. Seas 2 to  3 feet. Wave Detail: East 2 feet at 7 seconds. Intracoastal  waters light chop.  THURSDAY  East winds 5 to 10 knots. Seas around 2 feet. Wave  Detail: East 2 feet at 7 seconds. Intracoastal waters light chop.  THURSDAY NIGHT  East winds 5 to 10 knots, becoming south after  midnight. Seas around 2 feet. Wave Detail: East 2 feet at  7 seconds. Intracoastal waters light chop.  FRIDAY  Northwest winds 5 to 10 knots, becoming west 25 to  30 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal  waters very rough. A slight chance of showers and thunderstorms  in the afternoon.  SATURDAY  Northeast winds 25 to 30 knots. Seas 5 to 7 feet,  occasionally to 9 feet, building to 8 to 11 feet, occasionally to  14 feet. Intracoastal waters very rough. A slight chance of  showers through the day, then a chance of showers through the  night.    Winds and waves higher in and near thunderstorms.    $$