874
FZUS52 KJAX 041745
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
145 PM EDT Sat Oct 4 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.

AMZ400-050845-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
145 PM EDT Sat Oct 4 2025

.SYNOPSIS...

The current pattern with high pressure centered to the northeast,
and a trough over the coastal waters will continue through early
next week. This will keep the elevated and gusty winds, along with
bands of showers in the forecast. A few thunderstorms will be
possible, mainly during the afternoons. The pattern changes briefly
mid week, as the high moves away, and a cold front moves through.
High pressure is expected to build to the north, with troughing over
the waters later next week, bringing a return to the elevated
conditions.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Oct 02, 2025 at 1200 UTC...

 43 nautical miles east of Flagler Beach.
 53 nautical miles east of Saint Augustine Beach.
 61 nautical miles east of Jacksonville Beach.
 75 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-050845-
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-
145 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: East 7 feet at 8 seconds
and east 7 feet at 11 seconds. Intracoastal waters choppy. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY...East winds 20 to 25 knots. Seas 7 to 10 feet,
occasionally to 13 feet. Wave Detail: East 10 feet at 8 seconds
and east 4 feet at 13 seconds. Intracoastal waters rough. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 25 to 30 knots, diminishing to 20 to
25 knots after midnight. Seas 7 to 10 feet, occasionally to
13 feet. Wave Detail: East 10 feet at 8 seconds and east 2 feet
at 14 seconds. Intracoastal waters very rough. A slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight.
.MONDAY...East winds 20 to 25 knots, increasing to 25 to 30 knots
in the afternoon. Seas 8 to 11 feet, occasionally to 14 feet.
Wave Detail: East 10 feet at 8 seconds and east 2 feet at
14 seconds. Intracoastal waters very rough. A chance of showers
with a slight chance of thunderstorms.
.MONDAY NIGHT...East winds 25 to 30 knots, diminishing to 20 to
25 knots after midnight. Seas 8 to 11 feet, occasionally to
14 feet. Wave Detail: East 11 feet at 8 seconds and east 2 feet
at 14 seconds. Intracoastal waters very rough. A slight chance of
thunderstorms. A chance of showers, mainly in the evening.
.TUESDAY...East winds 20 to 25 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: East 8 feet at 8 seconds.
Intracoastal waters rough. A slight chance of showers and
thunderstorms in the morning.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Intracoastal waters choppy.
.WEDNESDAY...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal
waters rough.
.THURSDAY...Northeast winds 25 to 35 knots. Seas 5 to 8 feet,
occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally
to 8 feet after midnight. Intracoastal waters extremely rough. A
slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-050845-
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-
145 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.TONIGHT...East winds 20 to 25 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: East 9 feet at 8 seconds
and east 8 feet at 11 seconds. A chance of showers with a slight
chance of thunderstorms.
.SUNDAY...East winds 20 to 25 knots, increasing to 25 to 30 knots
in the afternoon. Seas 8 to 11 feet, occasionally to 14 feet.
Wave Detail: East 10 feet at 8 seconds and east 3 feet at
13 seconds. A chance of showers with a slight chance of
thunderstorms.
.SUNDAY NIGHT...East winds 20 to 25 knots. Seas 9 to 11 feet,
occasionally to 14 feet. Wave Detail: East 10 feet at 8 seconds
and east 3 feet at 13 seconds. A chance of showers with a slight
chance of thunderstorms.
.MONDAY...East winds 20 to 25 knots, increasing to 25 to 30 knots
in the afternoon. Seas 9 to 11 feet, occasionally to 14 feet.
Wave Detail: East 11 feet at 8 seconds and east 3 feet at
13 seconds. A slight chance of thunderstorms. A chance of showers
in the morning, then showers likely in the afternoon.
.MONDAY NIGHT...East winds 20 to 25 knots. Seas 8 to 11 feet,
occasionally to 14 feet. Wave Detail: East 11 feet at 8 seconds
and east 2 feet at 14 seconds. A slight chance of thunderstorms.
A chance of showers, mainly in the evening.
.TUESDAY...East winds 20 to 25 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: East 9 feet at 8 seconds
and east 2 feet at 13 seconds. A slight chance of showers in the
morning.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A slight chance of showers after
midnight.
.THURSDAY...Northeast winds 25 to 30 knots. Seas 5 to 7 feet,
occasionally to 9 feet, building to 6 to 8 feet, occasionally to
10 feet. A slight chance of showers and thunderstorms in the
morning, then a chance of showers. A slight chance of
thunderstorms through the night.

Winds and seas higher in and near thunderstorms.

$$