NWS Marine Forecast


   AMZ400-090900-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  227 PM EDT Sat Aug 8 2026      .SYNOPSIS...    Troughing over our local waters this afternoon will lift northward  towards the Carolina coast as Atlantic high pressure centered near  Bermuda builds westward towards the Florida peninsula. Widespread  showers and thunderstorms are expected through late this afternoon,  with strong to isolated severe storms containing gusty winds,  frequent lightning strikes, and waterspouts possible. Elevated seas  this afternoon will then gradually diminish tonight and Sunday.  Atlantic high pressure will briefly build northward across the  northeast Florida waters on Sunday and Monday before this feature  weakens while sinking southward by midweek as troughing develops  over the southeastern states. Coverage of showers and thunderstorms  will gradually decrease through Monday across our local waters, with  unseasonably dry conditions then forecast for much of next week as  southwesterly winds prevail.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Aug 08, 2026 at 0000 UTC...    46 nautical miles east of Flagler Beach.  53 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.      $$
   AMZ450-452-454-090900-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  227 PM EDT Sat Aug 8 2026    REST OF TODAY  East winds 10 to 15 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.  Intracoastal waters a moderate chop. A chance of showers and  thunderstorms.  TONIGHT  Southeast winds 10 to 15 knots, becoming south 5 to  10 knots after midnight. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal  waters a moderate chop. A slight chance of showers and  thunderstorms after midnight.  SUNDAY  South winds 5 to 10 knots, becoming southeast 10 to  15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East  3 feet at 8 seconds. Intracoastal waters a moderate chop. A  slight chance of showers and thunderstorms in the afternoon.  SUNDAY NIGHT  South winds 5 to 10 knots. Seas 2 to 3 feet. Wave  Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light  chop.  MONDAY  South winds around 5 knots, becoming southeast 10 to  15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:  Southeast 2 feet at 3 seconds and east 2 feet at 7 seconds.  Intracoastal waters a moderate chop.  MONDAY NIGHT  South winds 10 to 15 knots, becoming southwest  5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:  Southeast 2 feet at 4 seconds and southeast 2 feet at 7 seconds.  Intracoastal waters a moderate chop.  TUESDAY  Southwest winds 10 to 15 knots. Seas 2 to 3 feet.  Intracoastal waters a moderate chop.  WEDNESDAY  Southwest winds 10 to 15 knots. Seas 2 to 3 feet.  Intracoastal waters a moderate chop. A slight chance of showers  and thunderstorms through the night.    Winds and waves higher in and near thunderstorms.    $$