National Weather Service Marine Forecast FZUS52 KJAX

FZUS52 KJAX 030515
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
114 AM EDT Wed Jun 3 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.

AMZ400-032000
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm
114 AM EDT Wed Jun 3 2026

SYNOPSIS

A cold front will move south into central FL Tonight, as high pressure builds to the north. This high will remain to the north through Thursday, then begin to weaken as it builds more toward the east northeast late in the week and through the weekend.

The elevated onshore flow producing Small Craft Advisory conditions is expected to continue through Thursday.

GULF STREAM

The approximate location of the west wall of the Gulf Stream as of Jun 02, 2026 at 0000 UTC...

50 nautical miles east of Flagler Beach. 53 nautical miles east of Saint Augustine Beach. 68 nautical miles east southeast of Jacksonville Beach. 80 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.

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AMZ450-452-454-032000
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
114 AM EDT Wed Jun 3 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF TONIGHT
Northeast winds 25 to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 7 seconds. Intracoastal waters very rough. A slight chance of showers and thunderstorms.

WEDNESDAY
Northeast winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 9 seconds. Intracoastal waters rough.

WEDNESDAY NIGHT
Northeast winds 20 to 25 knots, becoming east 15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 9 seconds. Intracoastal waters rough.

THURSDAY
Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 10 seconds. Intracoastal waters choppy.

THURSDAY NIGHT
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 10 seconds. Intracoastal waters a moderate chop.

FRIDAY
East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 10 seconds and east 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers.

FRIDAY NIGHT
Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop.

SATURDAY THROUGH SUNDAY
South winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop.

Winds and waves higher in and near thunderstorms.

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AMZ470-472-474-032000
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
114 AM EDT Wed Jun 3 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

REST OF TONIGHT
Northeast winds 25 to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 9 seconds. A slight chance of showers and thunderstorms.

WEDNESDAY
Northeast winds 20 to 25 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 8 feet at 9 seconds.

WEDNESDAY NIGHT
Northeast winds 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at 9 seconds.

THURSDAY
Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 10 seconds.

THURSDAY NIGHT AND FRIDAY
East winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 10 seconds and east 3 feet at 8 seconds.

FRIDAY NIGHT
East winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 9 seconds and east 3 feet at 9 seconds.

SATURDAY
Southeast winds 5 to 10 knots. Seas around 3 feet.

SUNDAY
Southeast winds 5 to 10 knots. Seas around 3 feet. A slight chance of showers in the evening. A slight chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.