492
FZUS52 KJAX 141825
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
225 PM EDT Mon Sep 14 2026

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.

AMZ400-150900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
225 PM EDT Mon Sep 14 2026

.SYNOPSIS...

Offshore winds will continue across area waters today with the
exception of sea breeze winds developing from the east during the
afternoon hours. Less thunderstorm activity is expected for today
and will likely be limited to northeast Florida nearshore waters.
From Tuesday through Thursday, a strong northeast wind surge will
accompany a frontal passage and bring small craft advisory
conditions, rough seas, and waves of scattered to numerous showers
and a few thunderstorms over the area waters. Improving conditions
are expected by Friday as onshore winds weaken and seas gradually
lower.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 14, 2026 at 0000 UTC...

 50 nautical miles east of Flagler Beach.
 58 nautical miles east of Saint Augustine Beach.
 70 nautical miles east southeast of Jacksonville Beach.
 71 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-150900-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
225 PM EDT Mon Sep 14 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...

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

Winds and waves higher in and near thunderstorms.

$$

AMZ452-150900-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
225 PM EDT Mon Sep 14 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

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

Winds and waves higher in and near thunderstorms.

$$

AMZ454-150900-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
225 PM EDT Mon Sep 14 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

.REST OF TODAY...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 9 seconds. Intracoastal waters light
chop.
.TONIGHT...Southeast winds around 5 knots, becoming northeast
after midnight. Seas around 2 feet. Wave Detail: East 2 feet at
9 seconds. Intracoastal waters smooth. A slight chance of showers
and thunderstorms after midnight.
.TUESDAY...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 3 feet at 4 seconds and east
2 feet at 9 seconds. Intracoastal waters choppy. A chance of
thunderstorms. Showers likely, mainly in the morning.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 4 to
6 feet, occasionally to 8 feet, building to 6 to 7 feet,
occasionally to 9 feet after midnight. Wave Detail: Northeast
6 feet at 5 seconds and east 6 feet at 9 seconds, becoming
northeast 6 feet at 7 seconds. Intracoastal waters rough. A
chance of thunderstorms in the evening. A chance of showers.
.WEDNESDAY...Northeast winds 20 to 25 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 7 feet at
7 seconds. Intracoastal waters rough. A slight chance of showers.
A slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 7 to
8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at
7 seconds. Intracoastal waters rough. A chance of showers with a
slight chance of thunderstorms.
.THURSDAY...Northeast winds 20 to 25 knots, becoming east 15 to
20 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to
4 to 5 feet, occasionally to 6 feet after midnight. Intracoastal
waters rough. Showers through the day. A chance of thunderstorms.
A chance of showers through the night. A slight chance of
thunderstorms after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Intracoastal waters light chop. Showers
likely in the morning. A chance of thunderstorms. A chance of
showers. A slight chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ472-150900-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
225 PM EDT Mon Sep 14 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.REST OF TODAY...Northeast winds around 5 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 9 seconds.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 9 seconds. A slight chance of showers and
thunderstorms after midnight.
.TUESDAY...Northeast winds 10 to 15 knots, increasing to 20 to
25 knots in the afternoon. Seas 2 to 3 feet, building to 3 to
5 feet, occasionally to 6 feet in the afternoon. Wave Detail:
Northeast 3 feet at 4 seconds and east 2 feet at 9 seconds,
becoming northeast 5 feet at 5 seconds and east 2 feet at
9 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.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at
9 seconds and northeast 5 feet at 5 seconds. A chance of showers
with a slight chance of thunderstorms in the evening.
.WEDNESDAY...Northeast winds 20 to 25 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 7 feet at
8 seconds. A slight chance of showers.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots. Seas around
7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at
7 seconds. A slight chance of thunderstorms. A slight chance of
showers in the evening, then a chance of showers after midnight.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 4 to 5 feet, occasionally to
6 feet after midnight. A chance of thunderstorms. Showers.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. A chance of thunderstorms. Showers
likely, mainly in the morning.

Winds and seas higher in and near thunderstorms.

$$

AMZ474-150900-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
225 PM EDT Mon Sep 14 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

.REST OF TODAY...Northeast winds around 5 knots. Seas 2 to
3 feet. Wave Detail: East 2 feet at 9 seconds.
.TONIGHT...East winds around 5 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 9 seconds. A chance of showers and
thunderstorms after midnight.
.TUESDAY...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 4 feet at 4 seconds and east
2 feet at 9 seconds. Showers likely with a chance of
thunderstorms.
.TUESDAY NIGHT...Northeast winds around 20 knots. Seas 4 to
6 feet, occasionally to 8 feet, building to 6 to 7 feet,
occasionally to 9 feet after midnight. Wave Detail: Northeast
6 feet at 8 seconds and northeast 5 feet at 5 seconds, becoming
northeast 7 feet at 7 seconds. Showers likely with a chance of
thunderstorms in the evening, then a chance of showers after
midnight.
.WEDNESDAY...Northeast winds 20 to 25 knots. Seas around 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 7 feet at
8 seconds. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots. Seas around
7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at
7 seconds. A chance of showers with a slight chance of
thunderstorms in the evening, then showers likely with a chance
of thunderstorms after midnight.
.THURSDAY...East winds 15 to 20 knots, diminishing to 10 to
15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to
4 to 5 feet, occasionally to 6 feet after midnight. A chance of
thunderstorms. Showers.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. A chance of thunderstorms. Showers
likely, mainly in the morning.

Winds and seas higher in and near thunderstorms.

$$

AMZ470-150900-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
225 PM EDT Mon Sep 14 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...

.REST OF TODAY...Northeast winds around 5 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 9 seconds.
.TONIGHT...East winds around 5 knots, increasing to 10 to
15 knots after midnight. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 9 seconds.
.TUESDAY...Northeast winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet, building to 4 to 6 feet, occasionally to 8 feet in the
afternoon. Wave Detail: East 4 feet at 4 seconds and east 2 feet
at 9 seconds, becoming northeast 6 feet at 5 seconds and
northeast 6 feet at 9 seconds. A chance of showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots. Seas 6 to
7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at
6 seconds.
.WEDNESDAY AND WEDNESDAY NIGHT...Northeast winds 20 to 25 knots.
Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast
8 feet at 7 seconds. A slight chance of showers.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 4 to 5 feet, occasionally to
6 feet after midnight. Wave Detail: East 7 feet at 8 seconds,
becoming east 5 feet at 8 seconds. A chance of showers with a
slight chance of thunderstorms in the morning, then showers
likely with a chance of thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. A chance of showers and thunderstorms in
the morning, then a slight chance of showers and thunderstorms
through the night. A chance of showers and thunderstorms after
midnight.

Winds and seas higher in and near thunderstorms.

$$