NWS Marine Forecast


   AMZ400-170800-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  140 PM EDT Sat May 16 2026      .SYNOPSIS...    High pressure ridge will set up north of the local waters today and  east to southeast winds will then strengthen this afternoon, likely  resulting in a period of Caution conditions through the evening  hours. High pressure will continue to extend its axis across the  southeastern states from Sunday through the middle portion of next  week, keeping a persistent onshore wind flow with late afternoon and  evening wind surges expected. Isolated showers and thunderstorms  will be possible in this weather pattern during the early to middle  portions of next week. A frontal boundary will then move over the  southeastern states late next week resulting in gradually increasing  chances for showers and thunderstorms.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  May 16, 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.  71 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ452-454-170800-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  140 PM EDT Sat May 16 2026    SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH LATE TONIGHT    REST OF TODAY  Southeast winds 10 to 15 knots. Seas 3 to  4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at  4 seconds and northeast 2 feet at 7 seconds. Intracoastal waters  a moderate chop.  TONIGHT  Southeast winds 10 to 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 3 feet at 6 seconds.  Intracoastal waters a moderate chop.  SUNDAY  Southeast winds 10 to 15 knots. Seas around 3 feet.  Wave Detail: Southeast 3 feet at 5 seconds and east 3 feet at  8 seconds. Intracoastal waters a moderate chop.  SUNDAY NIGHT  Southeast winds 10 to 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: Southeast 3 feet at  5 seconds and east 3 feet at 8 seconds. Intracoastal waters a  moderate chop.  MONDAY AND MONDAY NIGHT  East winds 10 to 15 knots. Seas 3 to  4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at  5 seconds and east 3 feet at 8 seconds. Intracoastal waters a  moderate chop. A slight chance of showers.  TUESDAY  East winds 10 to 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds.  Intracoastal waters a moderate chop. A slight chance of showers  and thunderstorms through the day.  WEDNESDAY  Southeast winds 10 to 15 knots. Seas around 3 feet.  Intracoastal waters a moderate chop.    Winds and waves higher in and near thunderstorms.    $$