504
FZUS52 KJAX 011133
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
733 AM EDT Mon Sep 1 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.

AMZ400-020245-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
733 AM EDT Mon Sep 1 2025

.SYNOPSIS...

Low pressure centered along the east central Florida coast will
shift slowly southward in tandem with a frontal boundary today as
strong high pressure over New England continues to wedge down the
southeastern seaboard. Gusty northeasterly winds and elevated seas
will continue through early Tuesday, with Small Craft Advisories in
place throughout our local waters today and tonight. Bands of
showers and embedded thunderstorms will continue to impact our local
waters through midweek, as coastal troughing remains situated over
our near shore waters. Northeasterly winds will gradually weaken on
Tuesday and Wednesday, allowing for seas to gradually subside.
Coverage of showers and thunderstorms will then decrease later this
week ahead of a series of approaching cold fronts.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 30, 2025 at 1200 UTC...

 64 nautical miles east of Flagler Beach.
 73 nautical miles east of Saint Augustine Beach.
 82 nautical miles east of Jacksonville Beach.
 92 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-020245-
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-
733 AM EDT Mon Sep 1 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast winds 20 to 25 knots with gusts up to
35 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail:
Northeast 8 feet at 6 seconds. Intracoastal waters rough. A
chance of showers and thunderstorms.
.TONIGHT...Northeast winds 20 to 25 knots with gusts up to
35 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to
8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at
7 seconds. Intracoastal waters rough. A slight chance of
thunderstorms in the evening. A chance of showers.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
8 seconds and northeast 2 feet at 4 seconds. Intracoastal waters
choppy. A chance of showers and thunderstorms.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
around 10 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet after
midnight. Wave Detail: Northeast 5 feet at 7 seconds, becoming
northeast 4 feet at 7 seconds. Intracoastal waters choppy. A
chance of showers. A chance of thunderstorms, mainly in the
evening.
.WEDNESDAY AND WEDNESDAY NIGHT...Northeast winds 10 to 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
4 feet at 8 seconds. Intracoastal waters a moderate chop. A
chance of showers and thunderstorms.
.THURSDAY THROUGH FRIDAY...South winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Northeast 3 feet at 8 seconds. Intracoastal
waters light chop. A chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-020245-
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-
733 AM EDT Mon Sep 1 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast winds 20 to 25 knots with gusts up to
35 knots. Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail:
Northeast 8 feet at 8 seconds and northeast 6 feet at 5 seconds.
Showers likely with a chance of thunderstorms.
.TONIGHT...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Seas 7 to 8 feet, occasionally to
10 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after
midnight. Wave Detail: Northeast 8 feet at 8 seconds, becoming
northeast 7 feet at 8 seconds. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
8 seconds and north 3 feet at 5 seconds. Showers likely with a
chance of thunderstorms.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
around 10 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 6 feet at 7 seconds. A chance of
showers and thunderstorms.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
8 seconds. A chance of thunderstorms. Showers likely, mainly in
the morning.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at
8 seconds. A chance of showers and thunderstorms.
.THURSDAY THROUGH FRIDAY...South winds 5 to 10 knots. Seas 2 to
3 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$