413
FZUS52 KJAX 080549
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
149 AM EDT Wed Oct 8 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.

AMZ400-082000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
149 AM EDT Wed Oct 8 2025

.SYNOPSIS...

Elevated seas will continue through tonight as surface high pressure
shifts offshore of the mid-Atlantic coast, keeping Small Craft
Advisory conditions in place for portions of the waters.
A strong cold front will then move across the southeast states on
Wednesday, crossing the southeast Georgia waters late on Wednesday
night and the northeast Florida waters on Thursday. Meanwhile, a
strong high pressure ridge will wedge down the southeast seaboard on
Thursday, creating a surge of strong northeast winds and building
seas. Low pressure is expected to develop east of Cape Canaveral on
Friday, with this feature then moving slowly north, likely
approaching the Carolina Coast this weekend. Small Craft Advisory
conditions will overspread our local waters on Thursday, and due to
further increasing winds, Gale Watches will likely be required later
this week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Oct 07, 2025 at 1200 UTC...

 50 nautical miles east of Flagler Beach.
 59 nautical miles east of Saint Augustine Beach.
 70 nautical miles east of Jacksonville Beach.
 86 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ452-454-082000-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
149 AM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH THURSDAY MORNING...

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 9 seconds.
Intracoastal waters a moderate chop.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 9 seconds.
Intracoastal waters a moderate chop.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 4 to 5 feet, occasionally to
6 feet. Wave Detail: East 5 feet at 8 seconds. Intracoastal
waters choppy. A slight chance of showers after midnight.
.THURSDAY...Northeast winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 5 to 6 feet, occasionally to
8 feet, building to 6 to 9 feet, occasionally to 11 feet in the
afternoon. Wave Detail: Northeast 6 feet at 8 seconds, becoming
northeast 9 feet at 6 seconds. Intracoastal waters very rough. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.THURSDAY NIGHT AND FRIDAY...Northeast winds 25 to 30 knots with
gusts up to 40 knots. Seas 9 to 12 feet, occasionally to 15 feet.
Wave Detail: Northeast 12 feet at 9 seconds. Intracoastal waters
very rough. Showers with a chance of thunderstorms.
.FRIDAY NIGHT...Northeast winds 25 to 30 knots with gusts up to
40 knots. Seas 11 to 13 feet, occasionally to 17 feet. Wave
Detail: Northeast 13 feet at 9 seconds. Intracoastal waters very
rough. A chance of showers. A chance of thunderstorms, mainly in
the evening.
.SATURDAY...North winds 25 to 30 knots. Seas 10 to 13 feet,
occasionally to 17 feet. Intracoastal waters very rough. A chance
of showers with a slight chance of thunderstorms through the day,
then a slight chance of showers in the evening.
.SUNDAY...North winds 20 to 25 knots. Seas 8 to 11 feet,
occasionally to 14 feet, subsiding to 7 to 8 feet, occasionally
to 10 feet after midnight. Intracoastal waters rough.

Winds and waves higher in and near thunderstorms.

$$

AMZ450-082000-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
149 AM EDT Wed Oct 8 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM LATE TONIGHT
THROUGH THURSDAY MORNING...

.REST OF TONIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds.
Intracoastal waters light chop.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.
Intracoastal waters light chop.
.WEDNESDAY NIGHT...Northeast winds around 10 knots, increasing to
15 to 20 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal
waters choppy. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...Northeast winds 20 to 25 knots, increasing to 25 to
30 knots with gusts up to 40 knots in the afternoon. Seas 5 to
7 feet, occasionally to 9 feet, building to 6 to 9 feet,
occasionally to 11 feet in the afternoon. Wave Detail: Northeast
6 feet at 6 seconds, becoming northeast 8 feet at 7 seconds.
Intracoastal waters very rough. A chance of showers and
thunderstorms.
.THURSDAY NIGHT AND FRIDAY...Northeast winds 25 to 30 knots with
gusts up to 40 knots. Seas 8 to 11 feet, occasionally to 14 feet.
Wave Detail: Northeast 11 feet at 9 seconds. Intracoastal waters
very rough. Showers likely with a chance of thunderstorms.
.FRIDAY NIGHT...Northeast winds 25 to 30 knots with gusts up to
40 knots. Seas 8 to 11 feet, occasionally to 14 feet. Wave
Detail: Northeast 11 feet at 9 seconds. Intracoastal waters very
rough. A chance of showers with a slight chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots. Seas 7 to 10 feet,
occasionally to 13 feet. Intracoastal waters very rough. A chance
of showers in the morning, then a slight chance of showers
through the night.
.SUNDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to
5 to 7 feet, occasionally to 9 feet. Intracoastal waters rough.

Winds and waves higher in and near thunderstorms.

$$

AMZ472-474-082000-
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-
149 AM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 5 AM TO 8 AM EDT
THIS MORNING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH THURSDAY MORNING...

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 9 seconds.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 9 seconds. A
slight chance of showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to
6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at
9 seconds. A slight chance of showers after midnight.
.THURSDAY...Northeast winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 5 to 6 feet, occasionally to
8 feet, building to 6 to 9 feet, occasionally to 11 feet in the
afternoon. Wave Detail: Northeast 6 feet at 8 seconds, becoming
northeast 9 feet at 7 seconds. A chance of thunderstorms. A
chance of showers in the morning, then showers likely in the
afternoon.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Northeast winds 25 to
30 knots with gusts up to 40 knots. Seas 9 to 13 feet,
occasionally to 17 feet. Wave Detail: Northeast 13 feet at
9 seconds. Showers with a chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots. Seas 11 to 13 feet,
occasionally to 17 feet, building to 13 to 14 feet, occasionally
to 18 feet in the evening, subsiding to 11 to 13 feet,
occasionally to 17 feet after midnight. Wave Detail: Northeast
13 feet at 9 seconds and north 6 feet at 7 seconds, becoming
northeast 13 feet at 10 seconds and north 6 feet at 8 seconds. A
slight chance of thunderstorms through the day. A chance of
showers, then a slight chance of showers after midnight.
.SUNDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots. Seas 9 to 12 feet, occasionally to 15 feet, subsiding
to 8 to 10 feet, occasionally to 13 feet after midnight. A slight
chance of showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ470-082000-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
149 AM EDT Wed Oct 8 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM LATE TONIGHT
THROUGH THURSDAY MORNING...

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

Winds and seas higher in and near thunderstorms.

$$