NWS Marine Forecast


   AMZ400-140900-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  225 PM EDT Wed May 13 2026      .SYNOPSIS...    A weak wave of low pressure located near the Gulf Stream waters  adjacent to coastal Georgia will shift eastward through tonight as a  slow moving frontal boundary pushes south of the northeast Florida  waters. Scattered showers and isolated thunderstorms will remain  possible through around sunset this evening across our local waters.  Winds will shift to northwesterly later tonight, allowing seas to  gradually subside. A dry cold front will then approach our region  from the northwest on Thursday morning, followed by weak high  pressure building over the southeastern states on Thursday night and  Friday. This high pressure center will then shift offshore of the  southeastern seaboard this weekend, with southeasterly winds  gradually increasing and becoming breezy across our local waters  through the early portions of next week, especially during the  afternoon and evening hours.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  May 13, 2026 at 0000 UTC...    50 nautical miles east of Flagler Beach.  58 nautical miles east of Saint Augustine Beach.  70 nautical miles east southeast of Jacksonville Beach.  76 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-140900-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  225 PM EDT Wed May 13 2026    REST OF TODAY  North winds 10 to 15 knots. Seas 4 to 5 feet,  occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds.  Intracoastal waters a moderate chop. A chance of showers with a  slight chance of thunderstorms.  TONIGHT  North winds 5 to 10 knots, becoming northwest after  midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:  Northeast 4 feet at 8 seconds. Intracoastal waters light chop.  THURSDAY  Northwest winds 10 to 15 knots, becoming north 5 to  10 knots in the afternoon. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: Northeast 3 feet at 8 seconds. Intracoastal  waters a moderate chop.  THURSDAY NIGHT  North winds 5 to 10 knots. Seas 2 to 3 feet.  Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light  chop.  FRIDAY  Northeast winds 5 to 10 knots. Seas around 2 feet. Wave  Detail: Northeast 2 feet at 7 seconds. Intracoastal waters light  chop.  FRIDAY NIGHT  Southeast winds 5 to 10 knots. Seas 2 to 3 feet.  Wave Detail: East 3 feet at 7 seconds. Intracoastal waters light  chop.  SATURDAY  Southeast winds 15 to 20 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Intracoastal waters choppy.  SUNDAY  Southeast winds 10 to 15 knots. Seas 2 to 3 feet.  Intracoastal waters a moderate chop. A slight chance of showers  and thunderstorms in the afternoon.    Winds and waves higher in and near thunderstorms.    $$