AMZ400-131430-
 Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
 626 PM EST Fri Dec 12 2025
 
 
 .SYNOPSIS...
 
 High pressure centered over our local waters will shift offshore
 tonight. Arctic cold front will enter the southeastern states on
 Saturday night, with this boundary pushing across our local waters
 on Sunday. Northwesterly winds will quickly strengthen in the
 wake of this frontal passage on Sunday afternoon, with Small Craft
 Advisories likely, followed by possible Gale Warnings on Sunday
 night as winds shift to northerly and then northeasterly due to
 strong high pressure wedging down the southeastern seaboard,
 resulting in quickly building seas. High pressure will then
 gradually weaken over the southeastern states early next week as
 coastal troughing develops over our local waters. Gale Warnings
 will likely continue through Monday morning, with onshore winds
 and seas then gradually subsiding from Monday afternoon through
 Tuesday. Coastal troughing may generate a few showers early next
 week, mainly for the offshore waters. High pressure will then
 shift eastward and off the southeastern seaboard by midweek.
 
 
 .GULF STREAM...
 
 The approximate location of the west wall of the Gulf Stream as of
 Dec 06, 2025 at 1200 UTC...
 
 71 nautical miles east of Flagler Beach.
 74 nautical miles east of Saint Augustine Beach.
 85 nautical miles east southeast of Jacksonville Beach.
 97 nautical miles east southeast of St Simons Island.
 
 This data courtesy of the Naval Oceanographic Office.
 
 
 $$




 
 AMZ450-452-454-131430-
 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-
 626 PM EST Fri Dec 12 2025
 

 TONIGHT
 Southwest winds 5 to 10 knots, becoming west after
 midnight. Seas around 2 feet. Wave Detail: East 2 feet at
 7 seconds. Intracoastal waters light chop.

 SATURDAY
 Northwest winds around 5 knots, becoming east in the
 afternoon. Seas around 2 feet in the morning, then 1 foot or
 less. Intracoastal waters smooth.

 SATURDAY NIGHT
 South winds around 5 knots, becoming southwest
 after midnight. Waves 1 foot or less, then around 2 feet after
 midnight. Intracoastal waters light chop.

 SUNDAY
 West winds 5 to 10 knots, becoming northwest 20 to
 25 knots with gusts up to 35 knots in the afternoon. Seas 2 to
 4 feet, occasionally to 5 feet. Wave Detail: Northwest 4 feet at
 4 seconds. Intracoastal waters rough.

 SUNDAY NIGHT
 North winds 30 to 40 knots with gusts up to
 50 knots. Seas 5 to 8 feet, occasionally to 10 feet, building to
 7 to 10 feet, occasionally to 13 feet after midnight. Wave
 Detail: North 7 feet at 7 seconds and east 7 feet at 8 seconds,
 becoming north 10 feet at 7 seconds. Intracoastal waters
 extremely rough.

 MONDAY
 Northeast winds 25 to 30 knots with gusts up to
 45 knots, diminishing to 15 to 20 knots in the afternoon. Seas
 7 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast
 10 feet at 8 seconds and northwest 2 feet at 7 seconds.
 Intracoastal waters very rough.

 MONDAY NIGHT
 Northeast winds 15 to 20 knots, becoming north
 10 to 15 knots after midnight. Seas 5 to 7 feet, occasionally to
 9 feet. Intracoastal waters choppy.

 TUESDAY
 North winds 10 to 15 knots, becoming northeast 5 to
 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal
 waters a moderate chop.

 WEDNESDAY
 Northeast winds 5 to 10 knots, becoming southeast.
 Seas 2 to 3 feet. Intracoastal waters light chop.
 
 $$