NWS Marine Forecast



 Hazardous marine condition(s):
 Gale Watch
   AMZ400-272330-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  427 AM EDT Fri Mar 27 2026      .SYNOPSIS...    Atlantic high pressure will sink slowly southward today as a  strong cold front enters the southeastern states this evening.  Breezy southerly winds will develop early this evening ahead of  this approaching front, with this boundary moving from north to  south across our local waters during the early to mid morning  hours on Saturday. Strong high pressure building into the Ohio  Valley in the wake of this frontal passage will wedge down the  southeastern seaboard this weekend, creating a surge of strong  northeasterly winds that will reach Gale thresholds throughout our  local waters through early Sunday morning, with seas quickly  building on Saturday afternoon.    Coastal troughing will also develop over our near shore waters on  Saturday afternoon, with this feature generating showers and  possibly a few embedded thunderstorms, mainly for the northeast  Florida waters through early Sunday afternoon. Strong high  pressure will then migrate eastward off the Mid-Atlantic coast on  Sunday afternoon, allowing for winds to shift to an easterly  direction with gradually diminishing speeds. Small Craft Advisory  conditions will prevail from Sunday through Monday morning, with  seas gradually diminishing near shore by late Monday. Strong high  pressure will then become centered near Bermuda by Tuesday, with  breezy southeasterly winds forecast through midweek.      .GULF STREAM...    The approximate location of the west wall of the Gulf Stream as of  Mar 26, 2026 at 0000 UTC...    54 nautical miles east of Flagler Beach.  62 nautical miles east of Saint Augustine Beach.  74 nautical miles east southeast of Jacksonville Beach.  66 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.    $$
   AMZ450-452-454-272330-  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-  427 AM EDT Fri Mar 27 2026    GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY  MORNING    TODAY  Southwest winds 5 to 10 knots, becoming east southeast  around 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail:  East 3 feet at 7 seconds. Intracoastal waters becoming a moderate  chop.  TONIGHT  South winds around 15 knots, becoming west northwest  and increasing to 15 to 20 knots after midnight. Seas 2 to 3  feet. Wave Detail: East 3 feet at 8 seconds and south 2 feet at 4  seconds. Intracoastal waters becoming choppy.  SATURDAY  Northeast winds increasing to 25 to 35 knots. Seas 3  to 5 feet, occasionally to 6 feet, building to 7 to 10 feet,  occasionally to 13 feet in the afternoon. Wave Detail: Northeast 5  feet at 7 seconds and north 3 feet at 4 seconds, becoming  northeast 10 feet at 7 seconds and northeast 2 feet at 4 seconds.  Intracoastal waters becoming extremely rough. A slight chance of  showers in the afternoon.  SATURDAY NIGHT  Northeast winds 25 to 35 knots. Seas 9 to 13  feet, occasionally to 17 feet. Wave Detail: Northeast 13 feet at 9  seconds. Intracoastal waters extremely rough. A slight chance of  showers.  SUNDAY  East northeast winds 25 to 30 knots, diminishing to  around 20 knots in the afternoon. Seas 8 to 11 feet, occasionally  to 14 feet. Wave Detail: East 11 feet at 10 seconds. Intracoastal  waters very rough. A slight chance of showers in the morning.  SUNDAY NIGHT  East winds 15 to 20 knots, diminishing to around  15 knots after midnight. Seas 6 to 9 feet, occasionally to 11  feet. Wave Detail: East 8 feet at 10 seconds. Intracoastal waters  choppy.  MONDAY  East winds around 15 knots. Seas 5 to 7 feet,  occasionally to 9 feet. Intracoastal waters a moderate chop.  MONDAY NIGHT AND TUESDAY  East southeast winds 5 to 10 knots,  increasing to 10 to 15 knots during the afternoon. Seas 4 to 5  feet, occasionally to 6 feet. Intracoastal waters a light chop.    $$