759
FZUS52 KJAX 081102
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
702 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.

AMZ400-090215-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
702 AM EDT Wed Oct 8 2025

.SYNOPSIS...

A strong cold front will enter the southeastern states this
afternoon, with this boundary crossing the Georgia waters on
Thursday morning and the northeast Florida waters on Thursday
afternoon. Strong high pressure building over the eastern Great
Lakes in the wake of this front on Thursday will move eastward
towards coastal New England by Friday morning, with this feature
wedging down the southeastern seaboard. Northeasterly 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 by the late morning
and afternoon hours from north to south, and a Gale Watch 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 evening, with
this feature gradually strengthening as it moves northward towards
the coastal 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 as strong low pressure potentially stalls near the
Delmarva region early next week, with elevated seas also likely
slow to subside across our 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.


$$

AMZ452-454-090215-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
702 AM EDT Wed Oct 8 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 2 PM EDT THIS
AFTERNOON THROUGH THURSDAY MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

.TODAY...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. A chance of showers, mainly
this morning.
.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.
.THURSDAY...Northeast winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet, building to 5 to 8 feet, occasionally to 10 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 25 to 30 knots with gusts up to
45 knots. Seas 7 to 10 feet, occasionally to 13 feet, building to
9 to 11 feet, occasionally to 14 feet after midnight. Wave
Detail: Northeast 10 feet at 7 seconds, becoming northeast
11 feet at 8 seconds. Intracoastal waters very rough. A chance of
thunderstorms. Showers.
.FRIDAY...Northeast winds 25 to 30 knots with gusts up to
45 knots. Seas 9 to 11 feet, occasionally to 14 feet. Wave
Detail: Northeast 11 feet at 8 seconds. Intracoastal waters very
rough. A chance of thunderstorms. Showers.
.FRIDAY NIGHT...Northeast winds 25 to 30 knots with gusts up to
45 knots. Seas 10 to 12 feet, occasionally to 15 feet. Wave
Detail: Northeast 12 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 9 to 12 feet,
occasionally to 15 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 7 to 10 feet,
occasionally to 13 feet, subsiding to 6 to 8 feet, occasionally
to 10 feet after midnight. Intracoastal waters rough.

Winds and waves higher in and near thunderstorms.

$$

AMZ450-090215-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
702 AM EDT Wed Oct 8 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM LATE TONIGHT
THROUGH THURSDAY MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY
EVENING...

.TODAY...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. A slight chance of showers.
.TONIGHT...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 in the evening, then 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 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...Northeast winds 25 to 30 knots with gusts up to
45 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave
Detail: Northeast 10 feet at 8 seconds. Intracoastal waters very
rough. A chance of showers with a slight chance of thunderstorms
in the evening, then showers likely with a chance of
thunderstorms after midnight.
.FRIDAY...Northeast winds 25 to 30 knots with gusts up to
40 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave
Detail: Northeast 10 feet at 8 seconds. Intracoastal waters very
rough. Showers likely. A chance of thunderstorms, mainly in the
morning.
.FRIDAY NIGHT...Northeast winds 25 to 30 knots with gusts up to
45 knots. Seas 8 to 11 feet, occasionally to 14 feet. Wave
Detail: Northeast 10 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.

$$

AMZ472-474-090215-
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-
702 AM EDT Wed Oct 8 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

.TODAY...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.
.TONIGHT...Northeast winds around 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 evening, then a chance of showers
after midnight.
.THURSDAY...Northeast winds 15 to 20 knots, increasing to 25 to
30 knots with gusts up to 40 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 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 8 to 11 feet, occasionally to 14 feet. Wave
Detail: Northeast 11 feet at 8 seconds. Showers with a chance of
thunderstorms.
.FRIDAY AND 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 9 seconds. Showers with a
chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots. Seas 10 to 12 feet,
occasionally to 15 feet. Wave Detail: Northeast 12 feet at
9 seconds and north 6 feet at 7 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 8 to 11 feet, occasionally to 14 feet, subsiding
to 8 to 9 feet, occasionally to 11 feet after midnight. A slight
chance of showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ470-090215-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
702 AM EDT Wed Oct 8 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM LATE TONIGHT
THROUGH THURSDAY MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

.TODAY...Northeast winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds. A
slight chance of showers.
.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. A slight chance of
showers in the evening, then 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 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...Northeast winds 25 to 30 knots with gusts up to
40 knots. Seas 9 to 11 feet, occasionally to 14 feet. Wave
Detail: Northeast 11 feet at 8 seconds. A chance of
thunderstorms. Showers.
.FRIDAY AND FRIDAY NIGHT...Northeast winds 25 to 30 knots with
gusts up to 40 knots. Seas 10 to 11 feet, occasionally to
14 feet. Wave Detail: Northeast 11 feet at 9 seconds. Showers
with a chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots. Seas 9 to 12 feet,
occasionally to 15 feet. Wave Detail: Northeast 12 feet at
10 seconds and north 4 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. A slight chance of
showers in the afternoon.

Winds and seas higher in and near thunderstorms.

$$