National Weather Service Marine Forecast FZUS52 KJAX

FZUS52 KJAX 142201
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
601 PM EDT Tue Jul 14 2026

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.

AMZ400-151315
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm
601 PM EDT Tue Jul 14 2026

SYNOPSIS

A frontal boundary pushing slowly southward towards the Georgia waters will stall this afternoon, with this feature then weakening on Wednesday. Rounds of showers and thunderstorms will impact all of our local waters at times through Wednesday, with a few strong storms containing briefly gusty west winds and frequent lightning strikes possible. Coverage of showers and thunderstorms will then decrease by Thursday as the frontal boundary dissipates. Surface troughing developing over the southeastern states this weekend could bring scattered afternoon and evening showers and thunderstorms to our local waters as offshore winds prevail.

GULF STREAM

The approximate location of the west wall of the Gulf Stream as of Jul 14, 2026 at 0000 UTC...

54 nautical miles east of Flagler Beach. 58 nautical miles east of Saint Augustine Beach. 70 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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AMZ450-452-454-151315
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
601 PM EDT Tue Jul 14 2026

REST OF TONIGHT
West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms this evening.

WEDNESDAY
Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon.

WEDNESDAY NIGHT
Southwest winds 5 to 10 knots, becoming west after midnight. Seas around 2 feet. Wave Detail: Northeast 2 feet at 8 seconds. Intracoastal waters light chop.

THURSDAY
West winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 7 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon.

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

FRIDAY
West winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the afternoon.

FRIDAY NIGHT
Southwest winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop.

SATURDAY
Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms through the night.

SUNDAY
Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the afternoon. A slight chance of showers and thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

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AMZ470-472-474-151315
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
601 PM EDT Tue Jul 14 2026

REST OF TONIGHT
West winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: West 2 feet at 4 seconds and east 2 feet at 9 seconds. A chance of showers and thunderstorms this evening.

WEDNESDAY
Northwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at 3 seconds and northeast 2 feet at 8 seconds.

WEDNESDAY NIGHT
West winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: West 2 feet at 4 seconds and northeast 2 feet at 8 seconds.

THURSDAY
West winds 5 to 10 knots, becoming southwest in the afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at 3 seconds and east 2 feet at 7 seconds.

THURSDAY NIGHT
Southwest winds 5 to 10 knots, becoming west after midnight. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds and east 2 feet at 7 seconds.

FRIDAY AND FRIDAY NIGHT
Southwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: West 2 feet at 3 seconds and east 2 feet at 7 seconds.

SATURDAY THROUGH SUNDAY
Southwest winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.