National Weather Service Marine Forecast FZUS52 KJAX

FZUS52 KJAX 240529
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1229 AM EST Tue Feb 24 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.

AMZ400-242000
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm
1229 AM EST Tue Feb 24 2026

SYNOPSIS

Arctic high pressure building into the southeastern states overnight will shift over the Florida panhandle on Tuesday morning. Winds and seas will fall below Small Craft Advisory levels towards sunrise throughout our local waters. This high pressure center will continue to gradually weaken as it becomes centered over the Florida peninsula on Tuesday night, allowing for breezy southwesterly winds to develop offshore. High pressure will then shift offshore of the Florida peninsula by Wednesday afternoon, with breezy south
southwesterly winds continuing offshore and then expanding to the near shore waters on Thursday, well ahead of a frontal boundary that will be entering the southeastern states on Thursday night. Showers and embedded thunderstorms will gradually increase in coverage ahead across our local waters from late Thursday night through Friday night. The frontal boundary slow its forward progress as it crosses our area on Friday night and will then stall over the Florida peninsula on Saturday, with a weak wave of low pressure developing south of our local waters keeping scattered showers in the forecast through the upcoming weekend.

GULF STREAM

The approximate location of the west wall of the Gulf Stream as of Feb 23, 2026 at 0000 UTC...

58 nautical miles east of Flagler Beach. 66 nautical miles east of Saint Augustine Beach. 78 nautical miles east southeast of Jacksonville Beach. 76 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.

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AMZ450-452-454-242000
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
1229 AM EST Tue Feb 24 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF TONIGHT
Northwest winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 5 feet at 5 seconds and northeast 4 feet at 8 seconds. Intracoastal waters choppy.

TUESDAY
Northwest winds 10 to 15 knots, becoming east 5 to 10 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2 to 3 feet in the afternoon. Wave Detail: North 4 feet at 6 seconds, becoming northeast 3 feet at 7 seconds. Intracoastal waters a moderate chop.

TUESDAY NIGHT
Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 8 seconds and southwest 2 feet at 3 seconds. Intracoastal waters a moderate chop.

WEDNESDAY
Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 10 seconds and southwest 2 feet at 3 seconds. Intracoastal waters a moderate chop.

WEDNESDAY NIGHT AND THURSDAY
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds and east 2 feet at 12 seconds. Intracoastal waters a moderate chop.

THURSDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers.

FRIDAY
South winds 10 to 15 knots, becoming east 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers in the morning, then showers with a chance of thunderstorms.

SATURDAY
North winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers through the night. A slight chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

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AMZ470-472-474-242000
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
1229 AM EST Tue Feb 24 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF TONIGHT
Northwest winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northwest 6 feet at 6 seconds and northeast 2 feet at 10 seconds.

TUESDAY
Northwest winds 15 to 20 knots, becoming west 5 to 10 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet in the afternoon. Wave Detail: North 5 feet at 6 seconds and northeast 3 feet at 11 seconds, becoming north 4 feet at 7 seconds.

TUESDAY NIGHT
Southwest winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 9 seconds and southwest 3 feet at 4 seconds.

WEDNESDAY
Southwest winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southwest 3 feet at 4 seconds and northeast 3 feet at 11 seconds.

WEDNESDAY NIGHT AND THURSDAY
South winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South 4 feet at 4 seconds and northeast 3 feet at 12 seconds.

THURSDAY NIGHT
South winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at 5 seconds. A slight chance of showers.

FRIDAY
South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. A chance of showers in the morning, then a slight chance of thunderstorms in the afternoon. Showers. A chance of thunderstorms through the night.

SATURDAY
North winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers.

Winds and seas higher in and near thunderstorms.