National Weather Service Marine Forecast FZUS52 KJAX

FZUS52 KJAX 240527
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1227 AM EST Wed Dec 24 2025

Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach FL out to 60 nm.

Seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 1/10 of the waves.

AMZ400-242030
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm
1227 AM EST Wed Dec 24 2025

SYNOPSIS

A weak trough will move south across area waters Wednesday night, otherwise high pressure ridging will prevail through Saturday. The high will move to the south on Sunday. A cold front will move southeast across region Sunday night into Monday.

GULF STREAM

The approximate location of the west wall of the Gulf Stream as of Dec 23, 2025 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.

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AMZ450-452-454-242030
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
1227 AM EST Wed Dec 24 2025

TODAY
Northwest winds 5 to 10 knots, becoming north this afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds. Intracoastal waters light chop.

TONIGHT
Southeast winds around 5 knots, becoming northwest after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters smooth.

THURSDAY
West winds around 5 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 9 seconds. Intracoastal waters smooth.

THURSDAY NIGHT
West winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 9 seconds. Intracoastal waters light chop.

FRIDAY
West winds 5 to 10 knots, becoming south in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal waters light chop.

FRIDAY NIGHT
Southwest winds 5 to 10 knots, becoming west 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and southwest 2 feet at 3 seconds. Intracoastal waters a moderate chop.

SATURDAY THROUGH SUNDAY
Southwest winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop.

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AMZ470-472-474-242030
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM
1227 AM EST Wed Dec 24 2025

TODAY
Northwest winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds.

TONIGHT
North winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 9 seconds.

THURSDAY
Northwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds.

THURSDAY NIGHT
West winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 9 seconds and west 2 feet at 3 seconds.

FRIDAY AND FRIDAY NIGHT
West winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: West 3 feet at 4 seconds and northeast 3 feet at 9 seconds.

SATURDAY
West winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 11 seconds and west 3 feet at 4 seconds.

SUNDAY
West winds around 10 knots, becoming southwest 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet after midnight.