NWS Marine Forecast


   AMZ400-220930-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  128 PM EST Wed Jan 21 2026      .SYNOPSIS...    High pressure ridge centered along the Mid-Atlantic coast will push  offshore today, with this feature extending its axis southwest along  the southeastern seaboard through Friday. Breezy northeasterly winds  will gradually diminish by this evening. A developing winter storm  system over the central and southern United States late this week  and Arctic high pressure building to the north of our region will  drive a cold front south across our waters on Friday night and  Saturday, with a surge of northeast winds expected to overspread our  local waters from north to south early this weekend. A wave of low  pressure then develops along this boundary near our region by  Saturday night and Sunday. This storm system's warm front will lift  northeast across our local waters on Sunday. Another cold front will  cross our local waters by Sunday night and Monday, with  strengthening north winds forecast in the wake of this frontal  passage early next week.    .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Jan 21, 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.  71 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.    $$
   AMZ450-452-454-220930-  Coastal waters from Altamaha Sound to Fernandina Beach FL out  20 NM-  Coastal waters from Fernandina Beach to St. Augustine FL out  20 NM-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  128 PM EST Wed Jan 21 2026    REST OF TODAY  Northeast winds 10 to 15 knots...decreasing to 5  to 10 knots. Seas around 3 feet. Wave Detail: Northeast 2 feet at  4 seconds and east 2 feet at 9 seconds. Intracoastal waters light  chop.  TONIGHT  Northeast winds 5 to 10 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds  and northeast 2 feet at 5 seconds. Intracoastal waters light  chop.  THURSDAY  Northeast winds 5 to 10 knots. Seas 2 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds  and northeast 2 feet at 5 seconds. Intracoastal waters light  chop.  THURSDAY NIGHT  Northeast winds 5 to 10 knots. Seas 3 to  4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at  10 seconds. Intracoastal waters light chop.  FRIDAY  Northeast winds 5 to 10 knots. Seas 3 to 4 feet,  occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds.  Intracoastal waters light chop.  FRIDAY NIGHT  Northeast winds 5 to 10 knots, increasing to  15 to 20 knots after midnight. Seas 3 to 4 feet, occasionally to  5 feet. Wave Detail: East 4 feet at 10 seconds and northeast  3 feet at 4 seconds. Intracoastal waters choppy. A slight chance  of showers after midnight.  SATURDAY  Northeast winds 15 to 20 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Intracoastal waters choppy. A slight  chance of showers in the morning, then a chance of showers in the  afternoon. A slight chance of showers through the night.  SUNDAY  Southwest winds 15 to 20 knots, becoming west 20 to  25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal  waters rough. A slight chance of showers in the morning, then a  chance of showers in the afternoon. Showers likely through the  night.    $$