684
FZUS52 KJAX 060655
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
255 AM EDT Mon Oct 6 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.

AMZ400-062200-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
255 AM EDT Mon Oct 6 2025

.SYNOPSIS...

High pressure centered along the Mid-Atlantic coast will continue to
wedge down the southeastern seaboard, while coastal troughing
remains situated over our near shore waters through Tuesday. Gusty
easterly winds and Small Craft Advisory conditions featuring rough,
elevated seas will continue across our local waters through at
least tonight. Meanwhile, waves of showers and a few embedded
thunderstorms will continue to traverse our area through Tuesday.
High pressure will then shift further offshore of the Mid-Atlantic
coast by Tuesday night and Wednesday, allowing coastal troughing
to weaken over our local waters. A cold front entering the
southeastern states on Wednesday will then shift slowly southward
across our local waters by Thursday and Thursday night. Strong
high pressure building over New England will wedge down the
southeastern seaboard late this week as low pressure potentially
develops over the Gulf Stream waters adjacent to southeast
Florida. Northeasterly winds will quickly strengthen on Thursday,
with Small Craft Advisory conditions expected to extend into next
weekend as onshore winds potentially gust to Gale Force.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Oct 04, 2025 at 1200 UTC...

 57 nautical miles east of Flagler Beach.
 66 nautical miles east of Saint Augustine Beach.
 82 nautical miles east of Jacksonville Beach.
 97 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ452-454-062200-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
255 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.TODAY...East winds 15 to 20 knots. Seas 7 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 9 seconds
and east 3 feet at 13 seconds. Intracoastal waters choppy. Showers
likely with a slight chance of thunderstorms.
.TONIGHT...East winds 15 to 20 knots. Seas 7 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 9 seconds and
east 2 feet at 13 seconds. Intracoastal waters choppy. A slight
chance of showers and thunderstorms.
.TUESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds and
east 2 feet at 13 seconds. Intracoastal waters choppy. A slight
chance of showers and thunderstorms.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to around
15 knots after midnight. Seas 5 to 7 feet, occasionally to 9
feet. Wave Detail: East 7 feet at 8 seconds. Intracoastal waters
becoming a moderate chop.
.WEDNESDAY...East northeast winds around 15 knots, becoming
northeast 15 to 20 knots in the afternoon. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds.
Intracoastal waters becoming choppy.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 5
feet, occasionally to 6 feet. Wave Detail: East 5 feet at 8
seconds. Intracoastal waters a light chop. A slight chance of
showers and thunderstorms after midnight.
.THURSDAY...Northeast winds increasing to 25 to 30 knots. Seas 4
to 6 feet, occasionally to 8 feet, building to 6 to 9 feet,
occasionally to 11 feet. Intracoastal waters becoming very rough.
A chance of showers and thunderstorms.
.THURSDAY NIGHT AND FRIDAY...Northeast winds 25 to 30 knots. Seas
6 to 9 feet, occasionally to 11 feet, building to 8 to 10 feet,
occasionally to 13 feet. Intracoastal waters very rough. A chance
of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ450-062200-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
255 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.TODAY...East winds 15 to 20 knots. Seas 5 to 7 feet, occasionally
to 9 feet. Wave Detail: East 6 feet at 8 seconds and east 3 feet
at 13 seconds. Intracoastal waters choppy. A chance of showers
with a slight chance of thunderstorms.
.TONIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 9 seconds and
east 2 feet at 14 seconds. Intracoastal waters choppy. A slight
chance of showers and thunderstorms.
.TUESDAY...East winds around 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 8 seconds and
east 2 feet at 13 seconds. Intracoastal waters a moderate chop. A
slight chance of showers and thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds.
Intracoastal waters a light chop.
.WEDNESDAY...Northeast winds around 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 4 feet at 8 seconds.
Intracoastal waters a light chop.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4
feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7
seconds. Intracoastal waters a light chop. A slight chance of
showers after midnight.
.THURSDAY...Northeast winds increasing to 25 to 30 knots. Seas 5
to 7 feet, occasionally to 9 feet, building to 6 to 9 feet,
occasionally to 11 feet. Intracoastal waters becoming very rough.
A chance of showers and thunderstorms through the day, then a
chance of thunderstorms through the night.
.THURSDAY NIGHT AND FRIDAY...Northeast winds 25 to 30 knots. Seas
6 to 9 feet, occasionally to 11 feet. Intracoastal waters very
rough. A chance of showers with a slight chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ472-474-062200-
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-
255 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.TODAY...East winds 20 to 25 knots. Seas 8 to 9 feet, occasionally
to 11 feet. Wave Detail: East 9 feet at 9 seconds and east 4 feet
at 13 seconds. Showers likely with a slight chance of
thunderstorms.
.TONIGHT...East winds 20 to 25 knots. Seas 8 to 9 feet,
occasionally to 11 feet. Wave Detail: East 9 feet at 9 seconds and
east 3 feet at 13 seconds. A slight chance of showers and
thunderstorms.
.TUESDAY...East winds 15 to 20 knots. Seas 7 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 8 seconds
and east 2 feet at 13 seconds. A slight chance of showers and
thunderstorms.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to around
15 knots after midnight. Seas 6 to 8 feet, occasionally to 10
feet. Wave Detail: East 8 feet at 8 seconds.
.WEDNESDAY...East northeast winds 10 to 15 knots. Seas 5 to 6
feet, occasionally to 8 feet. Wave Detail: East 6 feet at 8
seconds and northeast 2 feet at 7 seconds. A slight chance of
showers.
.WEDNESDAY NIGHT...East winds around 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 8 seconds. A
slight chance of showers and thunderstorms after midnight.
.THURSDAY...Northeast winds increasing to 20 to 25 knots. Seas
building to 5 to 8 feet, occasionally to 10 feet. A chance of
showers with a slight chance of thunderstorms.
.THURSDAY NIGHT AND FRIDAY...Northeast winds 25 to 30 knots. Seas
6 to 9 feet, occasionally to 11 feet. Showers likely with a
chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ470-062200-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
255 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.TODAY...East winds around 20 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: East 8 feet at 7 seconds
and east 5 feet at 13 seconds. A chance of showers with a slight
chance of thunderstorms.
.TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 9 seconds
and east 3 feet at 13 seconds. A slight chance of showers and
thunderstorms.
.TUESDAY...East winds around 15 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds and
east 2 feet at 12 seconds. A slight chance of showers and
thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds.
.WEDNESDAY...East northeast winds around 10 knots. Seas 4 to 5
feet, occasionally to 6 feet. Wave Detail: East 5 feet at 8
seconds and northeast 2 feet at 8 seconds.
.WEDNESDAY NIGHT...East northeast winds 10 to 15 knots. Seas 4 to
5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 8
seconds and northeast 2 feet at 7 seconds. A slight chance of
showers after midnight.
.THURSDAY THROUGH FRIDAY...Northeast winds 25 to 30 knots. Seas
6 to 9 feet, occasionally to 11 feet. Showers likely with a
chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$