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FZUS52 KJAX 301309
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
909 AM EDT Sun Aug 30 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.

AMZ400-310415-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
909 AM EDT Sun Aug 30 2026

.SYNOPSIS...

Onshore winds continue this weekend as high pressure builds to the
north of the local waters and remains in place through much of next
week. This will focus chances for showers and thunderstorms mainly
inland, with lower chances across area waters overall.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 29, 2026 at 0000 UTC...

 50 nautical miles east of Flagler Beach.
 62 nautical miles east of Saint Augustine Beach.
 74 nautical miles east southeast of Jacksonville Beach.
 80 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-310415-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
909 AM EDT Sun Aug 30 2026

.REST OF TODAY...East winds 5 to 10 knots, increasing to 10 to
15 knots this afternoon. Seas 2 to 3 feet. Wave Detail: East
2 feet at 5 seconds and east 2 feet at 8 seconds. Intracoastal
waters a moderate chop. A chance of showers. A chance of
thunderstorms, mainly this morning.
.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East
3 feet at 7 seconds. Intracoastal waters a moderate chop. A
slight chance of showers in the evening, then a chance of showers
with a slight chance of thunderstorms after midnight.
.MONDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 seconds. Intracoastal waters light chop.
A chance of showers and thunderstorms, mainly in the morning.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 8 seconds. Intracoastal waters light chop.
A slight chance of showers. A slight chance of thunderstorms
after midnight.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 8 seconds. Intracoastal waters light chop.
A chance of showers and thunderstorms, mainly in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 8 seconds. Intracoastal waters light chop.
.WEDNESDAY THROUGH THURSDAY...Southeast winds 5 to 10 knots. Seas
2 to 3 feet. Intracoastal waters light chop. A chance of showers
and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-310415-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
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-
909 AM EDT Sun Aug 30 2026

.REST OF TODAY...East winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds and east 3 feet at
8 seconds. A chance of showers. A chance of thunderstorms, mainly
this morning.
.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 3 feet. Wave Detail: East
3 feet at 6 seconds. A slight chance of thunderstorms. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.MONDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 7 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: East 3 feet at 8 seconds. A chance of showers. A
slight chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight.
.TUESDAY...East winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: East 2 feet at 8 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 8 seconds and
east 3 feet at 12 seconds. A slight chance of showers and
thunderstorms.
.WEDNESDAY THROUGH THURSDAY...Southeast winds 5 to 10 knots. Seas
3 to 4 feet, occasionally to 5 feet. A chance of showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$