NWS Marine Forecast


   AMZ400-222100-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  224 AM EDT Fri May 22 2026      .SYNOPSIS...      Broad influence from a high pressure situated near Bermuda through  the weekend and at least through the middle of next week. The  western axis of high pressure will be north of the local waters  resulting in southerly winds, that will increase during the  afternoon hours as the sea breeze develops. Seas will build to 4 to  5 feet during the enhanced southeasterly winds behind the sea breeze  and small craft should exercise caution. Only isolated to widely  scattered showers and thunderstorms are expected across our local  waters, with increasing chances possible towards the middle portion  of next week.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  May 21, 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.      $$
   AMZ452-454-222100-  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 AM EDT Fri May 22 2026    SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON  THROUGH LATE TONIGHT    REST OF TONIGHT  South winds 10 to 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds and  southeast 3 feet at 5 seconds. Intracoastal waters a moderate  chop.  FRIDAY  Southeast winds 10 to 15 knots, increasing to 15 to  20 knots in the afternoon. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: Southeast 4 feet at 9 seconds and southeast  2 feet at 5 seconds. Intracoastal waters choppy.  FRIDAY NIGHT  Southeast winds 15 to 20 knots, becoming south  10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: Southeast 4 feet at 8 seconds and southeast  2 feet at 4 seconds. Intracoastal waters choppy.  SATURDAY  Southeast winds 5 to 10 knots, increasing to 10 to  15 knots in the afternoon. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal  waters a moderate chop. A slight chance of showers and  thunderstorms in the afternoon.  SATURDAY NIGHT  Southeast winds 10 to 15 knots. Seas 3 to  4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at  8 seconds. Intracoastal waters a moderate chop. A chance of  showers and thunderstorms in the evening, then a slight chance of  showers after midnight.  SUNDAY  Southeast winds 10 to 15 knots, increasing to 15 to  20 knots in the afternoon. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: Southeast 4 feet at 8 seconds and southeast  3 feet at 5 seconds. Intracoastal waters choppy. A slight chance  of thunderstorms. A chance of showers, mainly in the morning.  SUNDAY NIGHT  Southeast winds 15 to 20 knots. Seas 4 to 5 feet,  occasionally to 6 feet. Intracoastal waters choppy. A slight  chance of thunderstorms in the evening. A slight chance of  showers.  MONDAY  Southeast winds 15 to 20 knots, increasing to 20 to  25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Intracoastal  waters rough. A slight chance of showers and thunderstorms.  TUESDAY  Southeast winds 20 to 25 knots. Seas 4 to 5 feet,  occasionally to 6 feet. Intracoastal waters rough. A slight  chance of showers in the afternoon. A slight chance of  thunderstorms through the night. A chance of showers in the  evening, then a slight chance of showers after midnight.    Winds and waves higher in and near thunderstorms.    $$