National Weather Service Marine Forecast FZUS52 KJAX

FZUS52 KJAX 140546
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
146 AM EDT Wed Oct 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.

AMZ400-142100
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm
146 AM EDT Wed Oct 14 2026

SYNOPSIS

A high pressure system over the southeast states will slowly move east, and push well offshore by Thursday night and Friday. A strong cold front will cross the local waters late Friday night through Saturday morning, followed by building high pressure well to the north. Lighter winds and seas will continue through at least Thursday. Deteriorating marine conditions expected Friday night and into the weekend as a surge of northeasterly winds develop across the waters. Small Craft Advisories are anticipated with the potential for Gale conditions this weekend into early next week.

GULF STREAM

The approximate location of the west wall of the Gulf Stream as of Oct 13, 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.

---

AMZ450-452-454-142100
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
146 AM EDT Wed Oct 14 2026

TODAY
North winds 5 to 10 knots, becoming northeast this afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 7 seconds. Intracoastal waters light chop.

TONIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 7 seconds. Intracoastal waters light chop.

THURSDAY
Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 7 seconds. Intracoastal waters light chop.

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

FRIDAY
Northwest winds around 5 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters light chop.

FRIDAY NIGHT
Southwest winds 5 to 10 knots, becoming northwest 25 to 30 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: West 4 feet at 4 seconds and east 2 feet at 9 seconds. Intracoastal waters very rough.

SATURDAY
Northeast winds 25 to 30 knots, increasing to 30 to 35 knots. Seas 5 to 7 feet, occasionally to 9 feet, building to 9 to 13 feet, occasionally to 17 feet. Intracoastal waters extremely rough. A slight chance of showers.

SUNDAY
East winds 25 to 30 knots. Seas 9 to 13 feet, occasionally to 17 feet. Intracoastal waters very rough. A slight chance of showers in the morning, then a chance of showers through the night. A slight chance of showers after midnight.

---

AMZ470-472-474-142100
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
146 AM EDT Wed Oct 14 2026

TODAY
Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds.

TONIGHT
East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds.

THURSDAY
East winds around 5 knots. Seas around 2 feet. Wave Detail: East 2 feet at 7 seconds.

THURSDAY NIGHT
Southeast winds around 5 knots. Seas around 2 feet. Wave Detail: East 2 feet at 8 seconds.

FRIDAY
West winds around 5 knots. Seas around 2 feet. Wave Detail: East 2 feet at 8 seconds.

FRIDAY NIGHT
Southwest winds 5 to 10 knots, becoming northwest 25 to 30 knots after midnight. Seas around 2 feet, building to 3 to 5 feet, occasionally to 6 feet after midnight. Wave Detail: East 2 feet at 9 seconds, becoming west 5 feet at 5 seconds and east 2 feet at 9 seconds.

SATURDAY
Northeast winds 25 to 30 knots. Seas 5 to 8 feet, occasionally to 10 feet, building to 11 to 13 feet, occasionally to 17 feet. A chance of showers through the night. A slight chance of showers after midnight.

SUNDAY
East winds 25 to 30 knots. Seas 10 to 13 feet, occasionally to 17 feet. A slight chance of showers in the morning, then a chance of showers through the night. A slight chance of showers after midnight.