NWS Marine Forecast


   AMZ400-180900-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  224 PM EDT Tue Mar 17 2026      .SYNOPSIS...    Winds will continue to subside this afternoon, shifting to become  northeasterly by Wednesday morning as high pressure shifts  northeastward towards the Mid-Atlantic coast. This strengthening  high pressure center will wedge down the southeastern seaboard later  this week, creating another round of Small Craft exercise caution  conditions on Wednesday night and Thursday. Winds and seas are  expected to diminish by Friday afternoon.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Mar 17, 2026 at 0000 UTC...    46 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.      $$
   AMZ450-452-454-180900-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  224 PM EDT Tue Mar 17 2026    REST OF TODAY  Northwest winds 10 to 15 knots. Seas 3 to  5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at  6 seconds. Intracoastal waters a moderate chop.  TONIGHT  North winds 10 to 15 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: North 3 feet at 6 seconds.  Intracoastal waters a moderate chop.  WEDNESDAY  North winds 10 to 15 knots, increasing to 15 to  20 knots in the afternoon. Seas 3 to 5 feet, occasionally to  6 feet. Wave Detail: Northeast 5 feet at 7 seconds. Intracoastal  waters choppy.  WEDNESDAY NIGHT  North winds 10 to 15 knots, increasing to  15 to 20 knots after midnight. Seas 3 to 5 feet, occasionally to  6 feet. Wave Detail: Northeast 5 feet at 7 seconds. Intracoastal  waters choppy.  THURSDAY  North winds 15 to 20 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Wave Detail: Northeast 6 feet at  7 seconds. Intracoastal waters choppy.  THURSDAY NIGHT  Northeast winds 10 to 15 knots, becoming north  5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to  6 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal  waters a moderate chop.  FRIDAY THROUGH SATURDAY  Southwest winds 5 to 10 knots. Seas  3 to 4 feet, occasionally to 5 feet. Intracoastal waters light  chop.    $$