750
FZUS52 KJAX 070852
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
452 AM EDT Tue Oct 7 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.

AMZ400-080000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
452 AM EDT Tue Oct 7 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 today for the northeast Florida
waters. A strong cold front will then move across the southeastern
states on Wednesday, crossing the southeast Georgia waters late on
Wednesday night and the northeast Florida waters on Thursday.
Meanwhile, strong high pressure building over New England will
wedge down the southeastern seaboard on Thursday, creating a surge
of strong northeasterly winds and building seas. Low pressure is
expected to develop east of Cape Canaveral on Friday, with this
feature then moving slowly northward, likely approaching the
Carolina Coast this weekend. Small Craft Advisory conditions will
overspread our local waters on Thursday, and Gale Watches will
likely be required later this week as winds frequently gust to
Gale Force by Thursday night and Friday.


.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.

$$

AMZ452-454-080000-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
452 AM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...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 13 seconds. Intracoastal waters choppy. A slight
chance of showers and thunderstorms.
.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10
knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet.
Wave Detail: East 6 feet at 9 seconds. Intracoastal waters
becoming mostly smooth.
.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 light 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 becoming 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 8 feet at 6 seconds. Intracoastal waters becoming very
rough. Showers likely with a chance of thunderstorms.
.THURSDAY NIGHT...Northeast winds 25 to 30 knots. Seas 9 to 12
feet, occasionally to 15 feet. Wave Detail: Northeast 11 feet at 7
seconds. Intracoastal waters very rough. Showers likely with a
chance of thunderstorms.
.FRIDAY AND FRIDAY NIGHT...Northeast winds 25 to 35 knots. Seas 9
to 13 feet, occasionally to 17 feet, building to 12 to 14 feet,
occasionally to 18 feet. Intracoastal waters extremely rough.
Showers likely with a chance of thunderstorms.
.SATURDAY...North winds 30 to 40 knots. Seas 11 to 14 feet,
occasionally to 18 feet. Intracoastal waters extremely rough. A
chance of showers with a slight chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ450-080000-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
452 AM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING...

.TODAY...East winds around 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet, diminishing to 4 to 5 feet, occasionally
to 8 feet, late this morning. 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.
.TONIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 9 seconds.
Intracoastal waters mostly smooth.
.WEDNESDAY...Northeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.
Intracoastal waters a 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
becoming choppy. A slight chance of showers after midnight.
.THURSDAY...Northeast winds 25 to 30 knots. 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 becoming very rough. Showers likely with a chance of
thunderstorms.
.THURSDAY NIGHT...Northeast winds 30 to 35 knots. Seas 8 to 11
feet, occasionally to 14 feet. Wave Detail: Northeast 11 feet at 8
seconds. Intracoastal waters extremely rough. Showers likely with
a chance of thunderstorms.
.FRIDAY and FRIDAY NIGHT...Northeast winds 25 to 35 knots. Seas 9
to 13 feet, occasionally to 17 feet. Intracoastal waters
extremely rough. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY...North winds 25 to 35 knots. Seas 9 to 12 feet,
occasionally to 15 feet. Intracoastal waters extremely rough. A
chance of showers.

Winds and waves higher in and near thunderstorms.

$$

AMZ472-474-080000-
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-
452 AM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...East winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: East 7 feet at 8 seconds
and east 2 feet at 13 seconds.
.TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 7 feet at 9 seconds.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 9 seconds. A
slight chance of showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds increasing to around 15 knots.
Seas around 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 15 to 20 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 8 seconds. Showers likely with a chance of
thunderstorms.
.THURSDAY NIGHT...Northeast winds 25 to 30 knots. Seas 9 to 12
feet, occasionally to 15 feet. Wave Detail: Northeast 11 feet at 7
seconds. Showers with a chance of thunderstorms.
.FRIDAY AND FRIDAY NIGHT...Northeast winds 25 to 35 knots. Seas 9
to 13 feet, occasionally to 17 feet, building to 12 to 14 feet,
occasionally to 18 feet. Showers with a chance of thunderstorms.
.SATURDAY...North winds 25 to 35 knots. Seas 12 to 15 feet,
occasionally to 19 feet, building to 13 to 15 feet, occasionally
to 19 feet. A chance of showers with a slight chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ470-080000-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
452 AM EDT Tue Oct 7 2025

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

.TODAY...East winds around 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 8 seconds
and east 2 feet at 12 seconds. A slight chance of showers and
thunderstorms.
.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 around 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 slight chance of
showers and 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. Showers likely with a chance of
thunderstorms.
.THURSDAY NIGHT...Northeast winds around 30 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 12
feet at 8 seconds, becoming northeast 12 feet at 9 seconds.
Showers with a chance of thunderstorms.
.FRIDAY AND FRIDAY NIGHT...Northeast winds 30 to 35 knots. Seas
12 to 15 feet, occasionally to 19 feet. Showers likely with a
chance of thunderstorms.
.SATURDAY...North winds 25 to 30 knots. Seas 11 to 14 feet,
occasionally to 18 feet. A chance of showers with a slight chance
of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$