528
FZUS52 KJAX 120625
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
225 AM EDT Tue May 12 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.

AMZ400-122100-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
225 AM EDT Tue May 12 2026

.SYNOPSIS...

A cold front over the SOutheast Georgia waters will move into the
Northeast Florida waters through the morning hours today. Showers
and a few embedded thunderstorms will overspread our local waters
into this afternoon and this evening with periods of heavier
downpours possible at times. High pressure will build to the north
today with a surge of northeasterly winds with Small Craft Advisory
conditions developing throughout the waters this morning north of St
Augustine and expanding southward this afternoon. Winds will turn
easterly into Wednesday morning with decreasing winds and seas.
Showers may linger through Wednesday before another high pressure
center builds southward from the Great Lakes region late this week
with drier weather conditions into the upcoming weekend.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
May 11, 2026 at 0000 UTC...

 50 nautical miles east of Flagler Beach.
 53 nautical miles east of Saint Augustine Beach.
 64 nautical miles east southeast of Jacksonville Beach.
 76 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ452-122100-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
225 AM EDT Tue May 12 2026

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

.REST OF TONIGHT...North winds 10 to 15 knots. Seas around
2 feet. Wave Detail: East 2 feet at 6 seconds. Intracoastal
waters a moderate chop. Showers likely with a chance of
thunderstorms.
.TUESDAY...Northeast winds 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 northeast 3 feet at 9 seconds, becoming northeast
5 feet at 6 seconds. Intracoastal waters choppy. Showers with a
chance of thunderstorms.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 5 to 6 feet, occasionally to
8 feet. Wave Detail: East 6 feet at 6 seconds. Intracoastal
waters choppy. Showers with a chance of thunderstorms in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 9 seconds.
Intracoastal waters light chop. A chance of showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...North winds around 5 knots, becoming west
after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: East 4 feet at 9 seconds. Intracoastal waters light chop.
.THURSDAY AND THURSDAY NIGHT...North winds 5 to 10 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
8 seconds. Intracoastal waters light chop.
.FRIDAY THROUGH SATURDAY...Southeast winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ450-122100-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
225 AM EDT Tue May 12 2026

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

.REST OF TONIGHT...Northeast winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
5 seconds. Intracoastal waters choppy. Showers likely with a
chance of thunderstorms.
.TUESDAY...Northeast winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at
6 seconds. Intracoastal waters rough. Showers with a chance of
thunderstorms.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: East 6 feet at 6 seconds. Intracoastal
waters choppy. Showers with a chance of thunderstorms in the
evening, then showers likely with a slight chance of
thunderstorms after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 8 seconds.
Intracoastal waters light chop. A slight chance of thunderstorms.
A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT AND THURSDAY...Northwest winds 5 to 10 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East
4 feet at 8 seconds. Intracoastal waters light chop.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 8 seconds. Intracoastal
waters light chop.
.FRIDAY THROUGH SATURDAY...Southeast winds 5 to 10 knots. Seas
2 to 3 feet. Intracoastal waters light chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ454-122100-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
225 AM EDT Tue May 12 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TONIGHT...West winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. Intracoastal waters a
moderate chop. Showers likely with a chance of thunderstorms.
.TUESDAY...Northeast winds 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 3 feet at
4 seconds, becoming east 5 feet at 5 seconds and northeast 5 feet
at 8 seconds. Intracoastal waters choppy. A chance of
thunderstorms. Showers.
.TUESDAY NIGHT...East winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 5 to 6 feet, occasionally to
8 feet. Wave Detail: East 5 feet at 6 seconds. Intracoastal
waters choppy. A chance of thunderstorms. Showers.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
9 seconds. Intracoastal waters light chop. A chance of
thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...North winds around 5 knots, becoming northwest
around 5 knots after midnight. Seas 4 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 5 feet at 9 seconds. Intracoastal
waters smooth.
.THURSDAY AND THURSDAY NIGHT...North winds 5 to 10 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
8 seconds. Intracoastal waters light chop.
.FRIDAY THROUGH SATURDAY...Southeast winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-122100-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
225 AM EDT Tue May 12 2026

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

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

Winds and seas higher in and near thunderstorms.

$$

AMZ472-122100-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
225 AM EDT Tue May 12 2026

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

.REST OF TONIGHT...North winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 6 seconds. Showers likely with a
chance of thunderstorms.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at
6 seconds. Showers with a chance of thunderstorms.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 7 feet at
8 seconds and east 3 feet at 5 seconds. A chance of
thunderstorms. Showers.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 9 seconds. A
slight chance of thunderstorms. A chance of showers, mainly in
the morning.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming
northwest after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: East 5 feet at 9 seconds.
.THURSDAY AND THURSDAY NIGHT...North winds 5 to 10 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
8 seconds.
.FRIDAY THROUGH SATURDAY...Southeast winds 10 to 15 knots. Seas
2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ474-122100-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
225 AM EDT Tue May 12 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH WEDNESDAY MORNING...

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

Winds and seas higher in and near thunderstorms.

$$