NWS Marine Forecast


   AMZ400-301700-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  952 PM EDT Wed Apr 29 2026      .SYNOPSIS...    A cold front will enter the southeastern states tonight with  showers and thunderstorms after midnight, mainly across the  Georgia waters through Thursday morning. This front will then  stall across the northeast Florida waters from late Thursday  through Friday, with scattered showers and thunderstorms possible  throughout our local waters. A wave of low pressure will then  develop over the Gulf by late Friday night or Saturday, with  widespread showers and possibly a few strong thunderstorms  overspreading our local waters on Saturday, with activity expected  to continue into Sunday morning. Small Craft Advisory conditions  may develop on Saturday afternoon as southwesterly winds increase  ahead of this approaching wave of low pressure. The front will  shift south of the northeast Florida waters late on Saturday  night, resulting in winds shifting to northwesterly and then  northerly on Sunday morning. Breezy northeasterly winds are then  expected on Sunday afternoon and night as high pressure builds  into the southeastern states.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Apr 29, 2026 at 0000 UTC...    54 nautical miles east of Flagler Beach.  58 nautical miles east of Saint Augustine Beach.  70 nautical miles east southeast of Jacksonville Beach.  84 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-301700-  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-  952 PM EDT Wed Apr 29 2026    REST OF TONIGHT  Southwest winds 10 to 15 knots. Seas 3 to  5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at  5 seconds and east 3 feet at 11 seconds. Intracoastal waters a  moderate chop. A chance of thunderstorms with a slight chance of  showers.  THURSDAY  West winds 5 to 10 knots, becoming south in the  afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:  South 3 feet at 5 seconds and east 3 feet at 11 seconds.  Intracoastal waters light chop. A chance of showers. A slight  chance of thunderstorms in the morning, then a chance of  thunderstorms in the afternoon.  THURSDAY NIGHT  South winds around 5 knots, becoming north  after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at  10 seconds. Intracoastal waters smooth. A chance of showers with  a slight chance of thunderstorms in the evening, then a slight  chance of showers after midnight.  FRIDAY  Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave  Detail: East 2 feet at 10 seconds. Intracoastal waters light  chop. A slight chance of showers in the morning, then a chance of  showers with a slight chance of thunderstorms in the afternoon.  FRIDAY NIGHT  East winds 5 to 10 knots, becoming south after  midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at  4 seconds and east 2 feet at 12 seconds. Intracoastal waters  light chop. A chance of showers with a slight chance of  thunderstorms in the evening, then a slight chance of showers  after midnight.  SATURDAY  Southwest winds 10 to 15 knots, becoming west 20 to  25 knots in the afternoon. Seas 3 to 5 feet, occasionally to  6 feet. Wave Detail: West 4 feet at 4 seconds and east 2 feet at  11 seconds. Intracoastal waters rough. A chance of showers in the  morning, then showers with a chance of thunderstorms in the  afternoon.  SATURDAY NIGHT  North winds 15 to 20 knots, increasing to 20 to  25 knots after midnight. Seas 4 to 6 feet, occasionally to  8 feet. Intracoastal waters rough. Showers likely with a chance  of thunderstorms in the evening, then a slight chance of showers  after midnight.  SUNDAY  Northeast winds 20 to 25 knots, diminishing to 10 to  15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal  waters rough. A slight chance of showers.  MONDAY  Northeast winds 10 to 15 knots, becoming southeast 5 to  10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal  waters a moderate chop.    Winds and waves higher in and near thunderstorms.    $$