472
FZUS52 KJAX 010634
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
234 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.

AMZ400-012145-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
234 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.

$$

AMZ450-452-470-472-012145-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
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-
234 AM EDT Mon Sep 1 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS EVENING...

.TODAY...Northeast winds 20 to 25 knots. Seas 6 to 9 feet,
occasionally to 12 feet. Wave Detail: Northeast 8 feet at 8
seconds. Intracoastal waters rough. A chance of showers and
thunderstorms.
.TONIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 7 feet at 8
seconds. Intracoastal waters choppy. A chance of showers and
thunderstorms.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at 8
seconds. Intracoastal waters choppy. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 4 feet at 8 seconds and north
2 feet at 5 seconds. Intracoastal waters becoming a moderate chop.
A chance of showers and thunderstorms.
.WEDNESDAY AND WEDNESDAY NIGHT...Northeast winds 10 to 15 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
4 feet at 9 seconds. Intracoastal waters a light chop. A chance
of showers and thunderstorms.
.THURSDAY...Northeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Northeast 3 feet at 8 seconds. Intracoastal waters a
light chop. A chance of showers and thunderstorms.
.THURSDAY NIGHT....Southeast winds around 10 knots, becoming
southwest 5 to 10 knots after midnight. Seas around 2 feet.
Intracoastal waters mostly smooth. A slight chance of showers and
thunderstorms.
.FRIDAY...Northwest winds 5 to 10 knots, becoming northeast
around 10 knots during the afternoon. Seas around 2 feet.
Intracoastal waters becoming a light chop. A slight chance of
showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ454-474-012145-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
234 AM EDT Mon Sep 1 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS EVENING...

.TODAY...Northeast winds 20 to 25 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: Northeast 7 feet at 8
seconds. Intracoastal waters rough. Showers likely with a chance
of thunderstorms.
.TONIGHT...Northeast winds 15 to 20 knots, diminishing to around
15 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet.
Wave Detail: Northeast 7 feet at 8 seconds and north 2 feet at 8
seconds. Intracoastal waters becoming a moderate chop. Showers
likely with a chance of thunderstorms.
.TUESDAY...Northeast winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at 8 seconds
and north 2 feet at 5 seconds. Intracoastal waters a moderate
chop. Showers likely with a chance of thunderstorms.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5
feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at 8
seconds and north 2 feet at 5 seconds. Intracoastal waters a
light chop. Showers likely with a chance of thunderstorms.
.WEDNESDAY...Northeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 8
seconds. Intracoastal waters a light chop. Showers likely with a
chance of thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 4
feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 9
seconds and north 2 feet at 4 seconds. Intracoastal waters mostly
smooth. A chance of showers and thunderstorms.
.THURSDAY...Northeast winds around 10 knots. Seas 2 to 4 feet.
Wave Detail: Northeast 3 feet at 8 seconds. Intracoastal waters a
light chop. A chance of showers and thunderstorms.
.THURSDAY NIGHT....Southeast winds around 10 knots, becoming
southwest 5 to 10 knots after midnight. Seas around 2 feet.
Intracoastal waters mostly smooth. A slight chance of showers and
thunderstorms.
.FRIDAY...Northwest winds 5 to 10 knots, becoming northeast
around 10 knots during the afternoon. Seas around 2 feet.
Intracoastal waters becoming a light chop. A slight chance of
showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$