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FZUS52 KJAX 111306
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
906 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.

AMZ400-120415-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
906 AM EDT Sat Oct 11 2025

.SYNOPSIS...

Gales continue over the local waters through tonight as an area of
low pressure offshore of the Florida Atlantic coast tracks
northward. Waves of showers with isolated thunderstorms will
continue to impact the coastal waters, with decreasing rain chances
tonight into Sunday as the low tracks away from the local waters.
Small craft advisory conditions develop Sunday and persist through
Monday due to elevated combined seas. High pressure builds north of
the region Tuesday and Wednesday, with a resurgence of northeast
winds trailing a dry frontal passage.


.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.


$$

AMZ450-120415-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
906 AM EDT Sat Oct 11 2025

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

.TODAY...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. A slight chance of thunderstorms
this afternoon.
.TONIGHT...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 with a slight chance of thunderstorms in the evening,
then a slight chance of showers after midnight.
.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...Northwest 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 AND MONDAY NIGHT...North winds 10 to 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
11 seconds and north 3 feet at 5 seconds. Intracoastal waters a
moderate chop.
.TUESDAY THROUGH WEDNESDAY...Northeast winds 10 to 15 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
4 feet at 8 seconds. Intracoastal waters a moderate chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ452-454-120415-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
906 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...

.TODAY...North winds 25 to 30 knots, increasing to 30 to 35 knots
this 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. A slight chance of thunderstorms this afternoon.
.TONIGHT...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 chance of showers with a slight chance of
thunderstorms in the evening, then a slight chance of showers
after midnight.
.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. Wave Detail: Northeast
6 feet at 7 seconds. Intracoastal waters choppy.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-120415-
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-
906 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...

.TODAY...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.
.TONIGHT...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 slight
chance of thunderstorms in the evening. A chance of showers.
.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...Northwest 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...North winds around 15 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at
11 seconds and north 4 feet at 6 seconds. A slight chance of
showers in the afternoon.
.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.

$$