297
FZUS52 KJAX 111505
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1105 AM EDT Mon May 11 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.

AMZ400-120615-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1105 AM EDT Mon May 11 2026

.SYNOPSIS...

A cold front pushing through the southeastern states today will
cross the waters adjacent to southeast Georgia late Monday evening
and then the northeast Florida waters early on Tuesday morning. A
few strong thunderstorms could impact the near shore waters late
this afternoon and evening, with frequent lightning strikes and
briefly gusty winds possible. Showers and a few embedded
thunderstorms will then overspread our local waters on Tuesday
morning, with periods of heavier downpours possible across the
northeast Florida waters through Tuesday night. Meanwhile, high
pressure building over the Ohio Valley and Mid-Atlantic states in
the wake of this frontal passage will send a surge of
northeasterly winds down the southeastern seaboard overnight
tonight through Tuesday morning, with Small Craft Advisory
conditions developing initially across the Georgia waters after
midnight and then expanding to the waters from St. Augustine
northward early on Tuesday morning. Showers and embedded
thunderstorms, along with Small Craft Advisory conditions, will
continue through Tuesday evening across our local waters. Showers
and a few embedded thunderstorms may linger into Wednesday before
another high pressure center builds southward from the Great
Lakes states late this week, signaling a drying trend that will
continue across our local waters through the upcoming weekend.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
May 10, 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.
 76 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.

$$

AMZ452-120615-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
1105 AM EDT Mon May 11 2026

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

.REST OF TODAY...Southwest winds 5 to 10 knots, becoming east
southeast 10 to 15 knots this afternoon. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. Intracoastal waters
becoming a light chop. A chance of showers and thunderstorms late
this afternoon. A few strong storms will be possible, with
frequent lightning strikes, briefly gusty winds, and waterspouts
possible through around sunset.
.TONIGHT...South winds 5 to 10 knots, becoming north northeast and
increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 6 seconds. Intracoastal waters
becoming choppy. A chance of showers with a slight chance of
thunderstorms.
.TUESDAY...Northeast winds increasing to 20 to 25 knots. Seas
building to 5 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 5 feet at 5 seconds, becoming northeast 6 feet at 6
seconds. Intracoastal waters becoming rough. Showers likely with a
slight chance of thunderstorms.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots, becoming
east and diminishing to 10 to 15 knots after midnight. Seas 4 to
6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7
seconds. Intracoastal waters becoming a light. A chance of
showers with a slight chance of thunderstorms.
.WEDNESDAY...East winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
8 seconds. Intracoastal waters a light chop. A chance of showers
with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 8 seconds. Intracoastal waters mostly
smooth. A slight chance of showers and thunderstorms early in the
evening.
.THURSDAY...Northwest winds 5 to 10 knots, becoming east northeast
around 10 knots during the afternoon. Seas 2 to 3 feet.
Intracoastal waters becoming a light chop.
.THURSDAY NIGHT...East winds around 5 knots, becoming northeast
and increasing to 10 to 15 knots after midnight. Seas 2 to 4
feet, occasionally to 5 feet. Intracoastal waters a light chop.
.FRIDAY...Northeast winds 10 to 15 knots, becoming east northeast
during the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
Intracoastal waters a light chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ450-120615-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
1105 AM EDT Mon May 11 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING...

.REST OF TODAY...Southwest winds around 5 knots, becoming
south southeast around 10 knots this afternoon. Seas around 2
feet. Wave Detail: Southeast 2 feet at 6 seconds. Intracoastal
waters light chop. A slight chance of showers and thunderstorms
late this afternoon.
.TONIGHT...Southwest winds 5 to 10 knots, becoming northeast and
increasing to 20 to 25 knots after midnight. Seas building to 3
to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5
seconds. Intracoastal waters becoming rough. A chance of showers
with a slight chance of thunderstorms.
.TUESDAY...Northeast winds around 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 6
seconds. Intracoastal waters rough. A chance of showers with a
slight chance of thunderstorms.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots, diminishing
to around 10 knots after midnight. Seas 4 to 6 feet, occasionally
to 8 feet. Wave Detail: Northeast 5 feet at 7 seconds.
Intracoastal waters becoming a light chop. A slight chance of
showers and thunderstorms.
.WEDNESDAY...East winds around 10 knots, becoming southeast during
the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 8 seconds and east 2 feet at 11 seconds.
Intracoastal waters a light chop. A chance of showers with a slight
chance of thunderstorms.
.WEDNESDAY NIGHT...South southeast winds 5 to 10 knots, becoming
west southwest around 10 knots after midnight. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 8 seconds.
Intracoastal waters a light chop.
.THURSDAY...West northwest winds around 10 knots, becoming east 5
to 10 knots during the afternoon. Seas 2 to 3 feet. Intracoastal
waters becoming mostly smooth.
.THURSDAY NIGHT...Northeast winds around 5 knots, increasing to
around 10 knots late. Seas 2 to 3 feet. Intracoastal waters
becoming a light chop.
.FRIDAY...Northeast winds 10 to 15 knots, becoming east northeast
around 10 knots during the afternoon. Seas 2 to 3 feet.
Intracoastal waters a light chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ454-120615-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
1105 AM EDT Mon May 11 2026

.REST OF TODAY...Southwest winds 5 to 10 knots, becoming east
southeast around 10 knots this afternoon. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. Intracoastal waters
light chop. A chance of showers and thunderstorms late this
afternoon. A few strong storms will be possible, with frequent
lightning strikes, briefly gusty winds, and waterspouts possible
through around sunset.
.TONIGHT...South southeast winds around 10 knots, becoming
northwest after midnight. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 5 seconds. Intracoastal waters a light chop. A
chance of showers and thunderstorms, mainly during the evening.
.TUESDAY...Northeast winds increasing to 15 to 20 knots. Seas
building to 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 5 feet at 6 seconds. Intracoastal waters becoming
choppy. Showers likely with a chance of thunderstorms.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots, becoming
east and diminishing to 10 to 15 knots after midnight. Seas 5 to 6
feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 7
seconds. Intracoastal waters becoming a light chop. A chance of
showers with a slight chance of thunderstorms.
.WEDNESDAY...East winds around 10 knots, becoming southeast during
the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 5 feet at 8 seconds. Intracoastal waters a
light chop. A chance of showers with a slight chance of
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming west
southwest after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: East 4 feet at 8 seconds. Intracoastal
waters mostly smooth. A slight chance of showers and
thunderstorms in the evening.
.THURSDAY...Northwest winds 5 to 10 knots, becoming east northeast
during the afternoon. Seas 2 to 3 feet. Intracoastal waters mostly
smooth.
.THURSDAY NIGHT...East winds around 5 knots, becoming northeast
and increasing to 10 to 15 knots late. Seas 2 to 3 feet.
Intracoastal waters becoming a light chop.
.FRIDAY...Northeast winds 10 to 15 knots, becoming east northeast
during the afternoon. Seas 2 to 3 feet. Intracoastal waters a
light chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-120615-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
1105 AM EDT Mon May 11 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING...

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

Winds and seas higher in and near thunderstorms.

$$

AMZ472-120615-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
1105 AM EDT Mon May 11 2026

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

.REST OF TODAY...Southwest winds 5 to 10 knots, becoming south
this afternoon. Seas around 2 feet. Wave Detail: Southeast 2
feet at 6 seconds and east 2 feet at 10 seconds. A slight chance
of showers and thunderstorms this afternoon.
.TONIGHT...South winds around 10 knots, becoming north northeast
and increasing to 15 to 20 knots after midnight. Seas 2 to 3
feet. Wave Detail: Southwest 2 feet at 3 seconds and southeast 2
feet at 6 seconds. Showers likely with a slight chance of
thunderstorms, mainly after midnight.
.TUESDAY...Northeast winds 20 to 25 knots. Seas building to 5 to
6 feet, occasionally to 8 feet in the afternoon. Wave Detail:
Northeast 5 feet at 5 seconds and east 2 feet at 11 seconds,
becoming northeast 6 feet at 7 seconds and east 2 feet at 11
seconds. Showers likely with a slight chance of thunderstorms.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots, becoming
east and diminishing to 10 to 15 knots after midnight. Seas 5 to 6
feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7
seconds. A chance of showers with a slight chance of
thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots, becoming southeast 5 to
10 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 5 feet at 9 seconds. A chance of
showers with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming west
southwest after midnight. Seas 3 to 5 feet, occasionally to 6
feet. Wave Detail: East 4 feet at 8 seconds. A chance of showers
with a slight chance of thunderstorms in the evening.
.THURSDAY...Northwest winds 10 to 15 knots, becoming east
northeast around 5 knots during the afternoon. Seas 2 to 4 feet,
occasionally to 5 feet.
.THURSDAY NIGHT...South southwest winds 5 to 10 knots, becoming
north and increasing to 10 to 15 knots after midnight. Seas 2 to 3
feet.
.FRIDAY...North northeast winds 10 to 15 knots, becoming east
northeast 5 to 10 knots during the afternoon. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ474-120615-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
1105 AM EDT Mon May 11 2026

.REST OF TODAY...Southwest winds 5 to 10 knots, becoming south
this afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 6 seconds. A chance of showers and thunderstorms late this
afternoon.
.TONIGHT...South winds 10 to 15 knots, becoming northwest after
midnight. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
3 seconds and southeast 2 feet at 6 seconds. Showers likely with a
slight chance of thunderstorms, mainly after midnight.
.TUESDAY...North northeast winds increasing to 15 to 20 knots.
Seas 2 to 4 feet, occasionally to 5 feet, building to 4 to 5 feet,
occasionally to 6 feet in the afternoon. Wave Detail: Northeast 4
feet at 4 seconds and east 2 feet at 11 seconds, becoming
northeast 5 feet at 6 seconds and east 2 feet at 11 seconds.
Showers likely with a chance of thunderstorms.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots, becoming
east and diminishing to 10 to 15 knots after midnight. Seas 5 to 6
feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7
seconds. Showers likely with a chance of thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at 9 seconds
and southeast 2 feet at 11 seconds. A chance of showers with a
slight chance of thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming west
southwest after midnight. Seas 3 to 5 feet, occasionally to 6
feet. Wave Detail: East 4 feet at 8 seconds. A chance of showers
with a slight chance of thunderstorms.
.THURSDAY...Northwest winds around 10 knots, becoming east
northeast 5 to 10 knots during the afternoon. Seas 2 to 4 feet,
occasionally to 5 feet.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming north
and increasing to 10 to 15 knots after midnight. Seas 2 to 3 feet.
.FRIDAY...North northeast winds 10 to 15 knots, becoming east
during the afternoon. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$