NWS Marine Forecast


   AMZ400-041415-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  701 PM EDT Fri Jul 3 2026      .SYNOPSIS...    High pressure builds across central and south Florida this weekend  into early next week with a transition to south to southwest flow  over the local waters and higher afternoon and evening thunderstorm  chances over the local waters. Nightly wind surges return with near  exercise caution levels developing by Sunday night.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Jul 03, 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.  80 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-041415-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  701 PM EDT Fri Jul 3 2026    REST OF TONIGHT  East winds 5 to 10 knots, becoming south. Seas  2 to 3 feet. Wave Detail: East 3 feet at 7 seconds. Intracoastal  waters light chop.  SATURDAY  South winds around 5 knots, becoming southeast 10 to  15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:  Southeast 2 feet at 3 seconds and east 2 feet at 7 seconds.  Intracoastal waters a moderate chop.  SATURDAY NIGHT  South winds 10 to 15 knots, becoming southwest  5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:  Southeast 2 feet at 4 seconds and east 2 feet at 8 seconds.  Intracoastal waters a moderate chop.  SUNDAY  Southwest winds 5 to 10 knots, becoming south 10 to  15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:  Southeast 3 feet at 5 seconds and east 2 feet at 8 seconds.  Intracoastal waters a moderate chop. A slight chance of showers  in the morning, then a chance of showers and thunderstorms in the  afternoon.  SUNDAY NIGHT  South winds 15 to 20 knots, becoming southwest  10 to 15 knots after midnight. Seas 2 to 4 feet, occasionally to  5 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal  waters choppy. A slight chance of thunderstorms in the evening. A  slight chance of showers.  MONDAY AND MONDAY NIGHT  Southwest winds 15 to 20 knots. Seas  2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast  3 feet at 5 seconds. Intracoastal waters choppy. A slight chance  of showers and thunderstorms.  TUESDAY THROUGH WEDNESDAY  Southwest winds 15 to 20 knots. Seas  2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy.  A slight chance of showers and thunderstorms.    Winds and waves higher in and near thunderstorms.    $$