NWS Marine Forecast


   AMZ400-130545-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  1041 AM EDT Mon Oct 12 2026      .SYNOPSIS...    High pressure building eastward along the Interstate 10 corridor  will create breezy northwesterly winds across our local waters  through early Monday afternoon, and Small Craft should Exercise  Caution if venturing into the offshore waters. High pressure will  then settle over the southeastern states tonight, allowing winds and  seas to subside. Onshore winds will develop on Tuesday as high  pressure positions itself over the southern Appalachians, with winds  and seas expected to remain below Caution levels through Friday  evening. Winds will briefly shift to southerly and then  southwesterly ahead of a strong cold front that will approach our  local waters from the northwest on Friday night, with this front  quickly crossing our area on Saturday morning. Northerly winds will  abruptly increase following the passage of this front, with Small  Craft Advisories likely and potential Gale Force wind gusts  throughout the upcoming weekend as strong high pressure builds over  the Ohio Valley and wedges down the southeastern seaboard. Winds  will shift to northeasterly by Saturday evening, with increasing  chances for showers across our local waters as the weekend  progresses.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Oct 11, 2026 at 0000 UTC...    54 nautical miles east of Flagler Beach.  66 nautical miles east of Saint Augustine Beach.  78 nautical miles east southeast of Jacksonville Beach.  84 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.    $$
   AMZ450-452-454-130545-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  1041 AM EDT Mon Oct 12 2026    REST OF TODAY  Northwest winds 10 to 15 knots. Seas 2 to 4  feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 7  seconds and northwest 2 feet at 3 seconds. Intracoastal waters a  light chop.  TONIGHT  North winds 5 to 10 knots. Seas 2 to 3 feet. Wave  Detail: North 2 feet at 4 seconds and east 2 feet at 7 seconds.  Intracoastal waters mostly smooth.  TUESDAY  North winds 5 to 10 knots, becoming northeast around 10  knots during the afternoon Seas around 2 feet. Wave Detail: North  2 feet at 6 seconds. Intracoastal waters becoming a light chop.  TUESDAY NIGHT  Northeast winds 5 to 10 knots, becoming north and  diminishing to around 5 knots after midnight. Seas around 2  feet. Wave Detail:  Northeast 2 feet at 6 seconds. Intracoastal waters becoming  smooth.  WEDNESDAY  Northeast winds around 5 knots, increasing to around  10 knots during the afternoon. Seas around 2 feet. Wave Detail:  Northeast 2 feet at 7 seconds. Intracoastal waters becoming a  light chop.  WEDNESDAY NIGHT  East winds around 5 knots, becoming north after  midnight. Seas around 2 feet. Wave Detail: East 2 feet at 7  seconds. Intracoastal waters smooth.  THURSDAY  North northeast winds around 5 knots, becoming east  northeast around 10 knots during the afternoon. Seas around 2  feet. Intracoastal waters becoming a light chop.  THURSDAY NIGHT  East winds around 5 knots, becoming west  southwest after midnight. Seas around 2 feet. Intracoastal waters  smooth.  FRIDAY  Northwest winds around 5 knots, becoming east southeast  5 to 10 knots during the afternoon. Seas around 2 feet.  Intracoastal waters mostly smooth.    $$