332
FZUS52 KJAX 110529
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
129 AM EDT Sat Oct 11 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.

AMZ400-112000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
129 AM EDT Sat Oct 11 2025

.SYNOPSIS...

Nor`easter conditions prevail today as coastal low to the south
lifts north-northeastwardward, trailing along the Gulf Stream. As it
deepens, northerly winds will strengthen with Gale force winds and
gusts reaching up to 45 knots and combined seas around 8 to 12 feet
this afternoon. Gale Warnings remain in effect through tonight with
winds decreasing to Small Craft Advisory levels on Sunday. Winds
will relax behind as high pressure builds from the north behind a
cold front trailing the coastal low pressure system.

Bands of heavy rain with isolated thunderstorms continues to be a
possibility through this afternoon along a developing warm front
with
decreasing thunderstorm chances tonight and through Sunday. Elevated
seas are likely to linger offshore for through Monday. A dry cold
front passage on Wednesday will bring another period of breezy
northeasterly winds and elevated seas.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Oct 09, 2025 at 1200 UTC...

 64 nautical miles east of Flagler Beach.
 72 nautical miles east northeast of Saint Augustine Beach.
 75 nautical miles east of Jacksonville Beach.
 92 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-112000-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
129 AM EDT Sat Oct 11 2025

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...

.REST OF TONIGHT...Northeast winds 25 to 30 knots. Seas 7 to
10 feet, occasionally to 13 feet. Wave Detail: Northeast 9 feet
at 10 seconds. Intracoastal waters very rough. Showers likely
with a slight chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots. Seas 7 to 10 feet,
occasionally to 13 feet. Wave Detail: Northeast 10 feet at
10 seconds and north 4 feet at 7 seconds. Intracoastal waters
very rough. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY NIGHT...North winds 25 to 30 knots, becoming northwest
20 to 25 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet. Wave Detail: Northeast 9 feet at 10 seconds and north
5 feet at 6 seconds. Intracoastal waters very rough. A chance of
showers.
.SUNDAY...Northwest winds 15 to 20 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Wave Detail: Northeast 7 feet at
10 seconds and northwest 3 feet at 5 seconds. Intracoastal waters
choppy. A slight chance of showers.
.SUNDAY NIGHT AND MONDAY...North winds 10 to 15 knots. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
11 seconds and north 3 feet at 5 seconds. Intracoastal waters a
moderate chop.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
10 seconds. Intracoastal waters a moderate chop.
.TUESDAY THROUGH WEDNESDAY...Northeast winds 10 to 15 knots. Seas
3 to 4 feet, occasionally to 5 feet. Intracoastal waters a
moderate chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ452-454-112000-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
129 AM EDT Sat Oct 11 2025

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
LATE SUNDAY NIGHT...

.REST OF TONIGHT...Northeast winds 25 to 30 knots. Seas 8 to
10 feet, occasionally to 13 feet. Wave Detail: Northeast 10 feet
at 9 seconds. Intracoastal waters very rough. Showers likely with
a slight chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots, increasing to 30 to
35 knots in the afternoon. Seas 9 to 12 feet, occasionally to
15 feet. Wave Detail: Northeast 11 feet at 9 seconds and north
7 feet at 7 seconds. Intracoastal waters extremely rough. A
chance of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...North winds 25 to 35 knots. Seas 9 to 12 feet,
occasionally to 15 feet. Wave Detail: Northeast 11 feet at
9 seconds and north 7 feet at 7 seconds. Intracoastal waters
extremely rough. A slight chance of showers in the evening.
.SUNDAY...Northwest winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 6 to 9 feet, occasionally to
11 feet. Wave Detail: Northeast 9 feet at 10 seconds and
northwest 4 feet at 7 seconds. Intracoastal waters rough. A
slight chance of showers.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Northeast 7 feet at 10 seconds and north
3 feet at 6 seconds. Intracoastal waters choppy.
.MONDAY AND MONDAY NIGHT...North winds 10 to 15 knots. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at
11 seconds and north 3 feet at 5 seconds. Intracoastal waters a
moderate chop.
.TUESDAY THROUGH WEDNESDAY...Northeast winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-112000-
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-
129 AM EDT Sat Oct 11 2025

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
LATE SUNDAY NIGHT...

.REST OF TONIGHT...Northeast winds 20 to 25 knots, increasing to
25 to 30 knots. Seas 9 to 11 feet, occasionally to 14 feet. Wave
Detail: Northeast 10 feet at 9 seconds. Showers likely with a
slight chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots with gusts up to 40 knots.
Seas 9 to 12 feet, occasionally to 15 feet. Wave Detail:
Northeast 11 feet at 10 seconds and north 8 feet at 7 seconds. A
chance of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...North winds 25 to 30 knots. Seas 11 to 13 feet,
occasionally to 17 feet, subsiding to 9 to 12 feet, occasionally
to 15 feet after midnight. Wave Detail: North 10 feet at
7 seconds and northeast 10 feet at 10 seconds, becoming northeast
10 feet at 10 seconds and north 8 feet at 7 seconds. A chance of
showers, mainly in the evening.
.SUNDAY...Northwest winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 8 to 11 feet, occasionally to
14 feet. Wave Detail: Northeast 10 feet at 10 seconds and
northwest 5 feet at 7 seconds. A slight chance of showers.
.SUNDAY NIGHT AND MONDAY...North winds 15 to 20 knots. Seas 6 to
9 feet, occasionally to 11 feet. Wave Detail: Northeast 8 feet at
11 seconds and north 4 feet at 6 seconds. A slight chance of
showers.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
9 seconds.
.TUESDAY...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet.

Winds and seas higher in and near thunderstorms.

$$