AMZ400-220400-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
755 AM 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 briefly 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 20, 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.
76 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-220400- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 755 AM EST Wed Jan 21 2026 REST OF TODAY Northeast winds around 10 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 4 seconds and east 2 feet at 9 seconds. Intracoastal waters light chop. TONIGHT Northeast winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 9 seconds and northeast 2 feet at 5 seconds. Intracoastal waters light chop. THURSDAY Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and northeast 2 feet at 5 seconds. Intracoastal waters light chop. THURSDAY NIGHT Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. FRIDAY Northeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters light chop. FRIDAY NIGHT Northeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters a moderate chop. A slight chance of showers. SATURDAY North winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Intracoastal waters a moderate chop. A slight chance of showers in the morning, then a chance of showers. SUNDAY West winds 10 to 15 knots, becoming northwest 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. A chance of showers through the day, then showers likely in the evening. A chance of showers after midnight. $$
AMZ450-452-454-220400- 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- 755 AM EST Wed Jan 21 2026 REST OF TODAY Northeast winds around 10 knots. Seas around 3 feet. Wave Detail: Northeast 3 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 9 seconds and northeast 2 feet at 5 seconds. Intracoastal waters light chop. THURSDAY Northeast winds 5 to 10 knots. Seas 3 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 10 to 15 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds. Intracoastal waters a moderate chop. A slight chance of showers. SATURDAY North winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Intracoastal waters a moderate chop. A slight chance of showers in the morning, then a chance of showers. SUNDAY West winds 10 to 15 knots, becoming northwest 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. A chance of showers through the day, then showers likely in the evening. A chance of showers after midnight. $$