NWS Marine Forecast



 Hazardous marine condition(s):
 Small Craft Advisory
   AMZ400-012100-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  225 AM EDT Sat Aug 1 2026      .SYNOPSIS...    A frontal boundary will remain nearly stationary over the Georgia  waters today, while high pressure remains situated over the  southeastern Gulf. This weather pattern will create a prevailing  offshore wind flow, with the afternoon sea breeze shifting winds to  southerly in the afternoon and then back to southwesterly overnight.  Coverage of mainly afternoon and evening thunderstorms will increase  this weekend and early next week as the frontal boundary over the  Georgia waters lifts northward as a warm front ahead of another cold  front that will be entering the southeastern states. Southwesterly  winds will strengthen ahead of this front beginning Sunday morning,  with Caution level wind speeds likely and periods of Small Craft  Advisory conditions possible through early Monday. Strong storms  will be possible each afternoon and evening through Tuesday.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Jul 31, 2026 at 0000 UTC...    46 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.      $$
   AMZ450-452-012100-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  225 AM EDT Sat Aug 1 2026    SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH  MONDAY MORNING    REST OF TONIGHT  Southwest winds around 10 knots. Seas around  2 feet. Wave Detail: South 2 feet at 4 seconds. Intracoastal  waters light chop. A slight chance of showers.  SATURDAY  Southwest winds 5 to 10 knots, becoming south 10 to  15 knots in the afternoon. Seas around 2 feet. Wave Detail: South  2 feet at 4 seconds. Intracoastal waters a moderate chop. A  chance of showers with a slight chance of thunderstorms in the  morning, then showers and thunderstorms likely in the afternoon.  SATURDAY NIGHT  Southwest winds 10 to 15 knots. Seas 2 to  3 feet. Wave Detail: South 3 feet at 5 seconds. Intracoastal  waters a moderate chop. A chance of showers and thunderstorms,  mainly in the evening.  SUNDAY  Southwest winds 15 to 20 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: South 4 feet at 5 seconds.  Intracoastal waters choppy. A chance of showers with a slight  chance of thunderstorms in the morning, then showers likely with  a chance of thunderstorms in the afternoon.  SUNDAY NIGHT  Southwest winds 15 to 20 knots. Seas 3 to 5 feet,  occasionally to 6 feet. Wave Detail: South 4 feet at 6 seconds.  Intracoastal waters choppy. A chance of showers. A chance of  thunderstorms, mainly in the evening.  MONDAY  South winds 15 to 20 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: South 4 feet at 6 seconds.  Intracoastal waters choppy. Showers. A slight chance of  thunderstorms in the morning, then thunderstorms likely in the  afternoon.  MONDAY NIGHT  South winds 10 to 15 knots. Seas 2 to 3 feet.  Intracoastal waters a moderate chop. A chance of showers. A  slight chance of thunderstorms in the evening, then a chance of  thunderstorms after midnight.  TUESDAY  South winds 10 to 15 knots. Seas 2 to 3 feet.  Intracoastal waters a moderate chop. A slight chance of  thunderstorms in the morning. A chance of showers through the  day. A chance of thunderstorms in the afternoon, then a slight  chance of showers and thunderstorms in the evening.  WEDNESDAY  Southeast winds 10 to 15 knots. Seas 2 to 3 feet.  Intracoastal waters a moderate chop. A slight chance of showers  and thunderstorms in the afternoon. A slight chance of showers  and thunderstorms after midnight.    Winds and waves higher in and near thunderstorms.    $$