054
FZUS52 KJAX 082335
CWFJAX

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

AMZ400-091445-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
735 PM EDT Wed Oct 8 2025

.SYNOPSIS...

A strong cold front will enter the southeastern states tonight, with
this boundary crossing the Georgia waters early Thursday morning and
the northeast Florida waters by late Thursday morning. Strong high
pressure building over the Great Lakes in the wake of this front on
Thursday will move eastward towards New England by Friday morning,
with this feature wedging down the southeastern seaboard. Northeast
winds will quickly strengthen on Thursday as a coastal trough
sharpens over our near shore waters, with showers and embedded
thunderstorms increasing in coverage throughout our local waters
through Friday. Small Craft Advisory conditions will develop
Thursday morning, and a Gale Warning has been posted from Thursday
afternoon through Saturday night. Low pressure will then develop
along the frontal boundary over the Gulf Stream waters adjacent to
our region on Friday, with this feature gradually strengthening as
it moves northward towards the Carolinas this weekend. Strong north-
northeasterly winds and building, very rough surf will create
dangerous conditions throughout our local waters from Thursday night
through early Sunday. Northerly winds will gradually subside late
this weekend into early next week, with elevated seas also likely
slow to subside across our local waters.


.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.


$$

AMZ452-454-091445-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
735 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

.TONIGHT...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 with gusts up to 40 knots in the afternoon. Seas 4 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 8 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...Northeast winds 30 to 35 knots, diminishing to
25 to 30 knots after midnight. Seas 8 to 11 feet, occasionally to
14 feet. Wave Detail: Northeast 11 feet at 8 seconds.
Intracoastal waters extremely rough. Showers with a chance of
thunderstorms.
.FRIDAY...Northeast winds 25 to 35 knots with gusts up to
45 knots. Seas 9 to 12 feet, occasionally to 15 feet. Wave
Detail: Northeast 12 feet at 8 seconds. Intracoastal waters
extremely rough. A chance of thunderstorms. Showers likely.
.FRIDAY NIGHT...Northeast winds 30 to 35 knots with gusts up to
45 knots. Seas 11 to 13 feet, occasionally to 17 feet. Wave
Detail: Northeast 13 feet at 9 seconds. Intracoastal waters
extremely rough. A chance of thunderstorms. Showers likely,
mainly in the evening.
.SATURDAY...North winds 30 to 35 knots with gusts up to 45 knots.
Seas 10 to 13 feet, occasionally to 17 feet. Wave Detail:
Northeast 13 feet at 9 seconds and north 4 feet at 7 seconds.
Intracoastal waters extremely rough. A chance of showers with a
slight chance of thunderstorms.
.SATURDAY NIGHT...North winds 30 to 35 knots with gusts up to
45 knots, diminishing to 25 to 30 knots after midnight. Seas 9 to
13 feet, occasionally to 17 feet. Intracoastal waters extremely
rough. A slight chance of showers in the evening.
.SUNDAY...North winds 25 to 30 knots, diminishing to around
15 knots. Seas 8 to 11 feet, occasionally to 14 feet, subsiding
to 6 to 7 feet, occasionally to 9 feet. Intracoastal waters very
rough.
.MONDAY...North winds around 15 knots, becoming southwest. Seas
5 to 7 feet, occasionally to 9 feet. Intracoastal waters a
moderate chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ450-091445-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
735 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

.TONIGHT...East winds 5 to 10 knots, becoming northeast 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 this evening, then a
chance of showers after midnight.
.THURSDAY...Northeast winds 20 to 25 knots, increasing to 25 to
30 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 thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.THURSDAY NIGHT...Northeast winds around 30 knots with gusts up
to 40 knots. Seas 8 to 11 feet, occasionally to 14 feet. Wave
Detail: Northeast 11 feet at 8 seconds. Intracoastal waters very
rough. Showers likely with a chance of thunderstorms.
.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 10 feet at 9 seconds. Intracoastal waters very
rough. Showers likely with a chance of thunderstorms.
.FRIDAY NIGHT...Northeast winds 30 to 35 knots. Seas 9 to
12 feet, occasionally to 15 feet. Wave Detail: Northeast 12 feet
at 9 seconds. Intracoastal waters extremely rough. Showers likely
with a chance of thunderstorms in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.
.SATURDAY...North 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 and north 2 feet at 7 seconds.
Intracoastal waters very rough. A chance of showers with a slight
chance of thunderstorms in the morning, then a slight chance of
showers in the afternoon.
.SATURDAY NIGHT...North winds 25 to 30 knots. Seas 7 to 10 feet,
occasionally to 13 feet. Intracoastal waters very rough. A slight
chance of showers in the evening.
.SUNDAY...North winds 20 to 25 knots, becoming northwest 10 to
15 knots. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to
5 to 7 feet, occasionally to 9 feet. Intracoastal waters rough.
.MONDAY...West winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Intracoastal waters a moderate chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ472-474-091445-
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-
735 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

.TONIGHT...Northeast winds around 15 knots. Seas around 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds. A
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 8 feet at 7 seconds. A chance of showers with a slight
chance of thunderstorms in the morning, then showers likely with
a chance of thunderstorms in the afternoon.
.THURSDAY 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 8 seconds. Showers with a chance of
thunderstorms.
.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 8 seconds. 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. Showers likely with a
chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots, increasing to 30 to
35 knots in the afternoon. Seas 11 to 13 feet, occasionally to
17 feet. Wave Detail: Northeast 13 feet at 9 seconds and north
5 feet at 7 seconds. A chance of showers. A chance of
thunderstorms, mainly in the morning.
.SATURDAY NIGHT...North winds 25 to 35 knots. Seas 11 to 13 feet,
occasionally to 17 feet. A chance of showers, mainly in the
evening.
.SUNDAY...North winds 25 to 30 knots, diminishing to 15 to
20 knots. Seas 9 to 12 feet, occasionally to 15 feet, subsiding
to 7 to 8 feet, occasionally to 10 feet. A slight chance of
showers through the day.
.MONDAY...North winds around 15 knots, becoming west. Seas 6 to
8 feet, occasionally to 10 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ470-091445-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
735 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

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

Winds and seas higher in and near thunderstorms.

$$