NWS Marine Forecast


   AMZ400-090045-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  540 AM EDT Sat Aug 8 2026      .SYNOPSIS...    A trough of low pressure will move through the area today with  breezy southeast to south winds and occasionally rough seas. In  addition, numerous showers and thunderstorms are expected at times  over the area waters through tonight. Some of the thunderstorms may  be strong. High pressure ridging will slowly build into the area  late Sunday into early next week resulting in a slow lowering of  winds and seas.    .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Aug 07, 2026 at 0000 UTC...    46 nautical miles east of Flagler Beach.  49 nautical miles east of Saint Augustine Beach.  60 nautical miles east southeast of Jacksonville Beach.  71 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.    $$
   AMZ450-452-454-090045-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  540 AM EDT Sat Aug 8 2026    TODAY  Southeast winds 10 to 15 knots. Seas 3 to 5 feet,  occasionally to 6 feet. Wave Detail: East 4 feet at 8 seconds.  Intracoastal waters a moderate chop. Showers likely, and a chance  of thunderstorms.  TONIGHT  Southeast winds 10 to 15 knots, becoming south 5 to  10 knots after midnight. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal  waters a moderate chop. A slight chance of showers and  thunderstorms.  SUNDAY  South winds 5 to 10 knots, becoming southeast 10 to  15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East  3 feet at 8 seconds. Intracoastal waters a moderate chop. A  slight chance of showers and thunderstorms in the afternoon.  SUNDAY NIGHT  South winds 10 to 15 knots, diminishing to 5 to  10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast  3 feet at 8 seconds. Intracoastal waters a moderate chop.  MONDAY  South winds around 5 knots, becoming southeast 10 to  15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:  Southeast 2 feet at 3 seconds and east 2 feet at 7 seconds.  Intracoastal waters a moderate chop.  MONDAY NIGHT  South winds 10 to 15 knots, becoming southwest  5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:  Southeast 3 feet at 7 seconds and southeast 2 feet at 4 seconds.  Intracoastal waters a moderate chop.  TUESDAY THROUGH WEDNESDAY  Southwest winds 10 to 15 knots. Seas  2 to 3 feet. Intracoastal waters a moderate chop. A slight chance  of showers and thunderstorms.    Winds and waves higher in and near thunderstorms.    $$