NWS Marine Forecast



 Hazardous marine condition(s):
 Gale Warning
   AMZ400-131545-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  839 PM EDT Thu Mar 12 2026      .SYNOPSIS...    High pressure will build to the north then northeast through Friday.  High pressure will prevail to the northeast over the weekend. A cold  front will move through Monday. High pressure will build behind this  front on Tuesday.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Mar 12, 2026 at 0000 UTC...    50 nautical miles east of Flagler Beach.  53 nautical miles east of Saint Augustine Beach.  64 nautical miles east southeast of Jacksonville Beach.  76 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ450-452-454-131545-  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-  839 PM EDT Thu Mar 12 2026    GALE WARNING IN EFFECT UNTIL 5 AM EDT FRIDAY    REST OF TONIGHT  Northeast winds 25 to 35 knots. Seas 5 to  8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at  8 seconds and north 5 feet at 4 seconds. Intracoastal waters  extremely rough.  FRIDAY  East winds 15 to 20 knots, becoming northeast 5 to  10 knots in the afternoon. Seas 5 to 7 feet, occasionally to  9 feet. Wave Detail: Northeast 7 feet at 8 seconds. Intracoastal  waters choppy.  FRIDAY NIGHT  Northeast winds around 5 knots. Seas 3 to 5 feet,  occasionally to 6 feet. Wave Detail: Northeast 5 feet at  8 seconds. Intracoastal waters smooth.  SATURDAY  Northeast winds 5 to 10 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.  Intracoastal waters light chop. A slight chance of showers in the  afternoon.  SATURDAY NIGHT  East winds 5 to 10 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.  Intracoastal waters light chop. A slight chance of showers and  thunderstorms in the evening, then a chance of showers and  thunderstorms after midnight.  SUNDAY  Southeast winds 5 to 10 knots, increasing to 10 to  15 knots in the afternoon. Seas 2 to 4 feet, occasionally to  5 feet. Wave Detail: East 3 feet at 8 seconds and southeast  2 feet at 5 seconds. Intracoastal waters a moderate chop. Showers  likely with a slight chance of thunderstorms in the morning, then  showers with a chance of thunderstorms in the afternoon.  SUNDAY NIGHT  South winds 15 to 20 knots. Seas 3 to 5 feet,  occasionally to 6 feet. Intracoastal waters choppy. Showers  likely. A chance of thunderstorms, mainly in the evening.  MONDAY  Southwest winds 15 to 20 knots, becoming northwest  25 to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet.  Intracoastal waters very rough. A slight chance of thunderstorms  in the morning. Showers likely through the day. A chance of  thunderstorms in the afternoon, then a chance of showers with a  slight chance of thunderstorms in the evening. A slight chance of  showers after midnight.  TUESDAY  Northwest winds 20 to 25 knots, becoming north 15 to  20 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to  3 to 5 feet, occasionally to 6 feet. Intracoastal waters rough.    Winds and waves higher in and near thunderstorms.    $$