474
FZUS52 KJAX 220604
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
204 AM EDT Tue Jul 22 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.

AMZ400-222115-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
204 AM EDT Tue Jul 22 2025

.SYNOPSIS...

A broad area of low pressure will move southwest across the local area
late today into tonight and then move into the Gulf on Wednesday.
A weak backdoor front will move southward into the Georgia waters
late Wednesday which will likely bring higher chances for showers
and thunderstorms to area waters Wednesday into Thursday. High
pressure ridging will begin building into the region Wednesday
night through the weekend as the low pressure in the Gulf moves
west, allowing for prevailing winds to become south and southeast
over our local waters.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 19, 2025 at 1200 UTC...

 64 nautical miles east of Flagler Beach.
 74 nautical miles east of Saint Augustine Beach.
 82 nautical miles east of Jacksonville Beach.
 78 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-222115-
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-
204 AM EDT Tue Jul 22 2025

.TODAY...Southwest winds 5 to 10 knots, becoming southeast this
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
8 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms this morning, then showers and thunderstorms
likely this afternoon.
.TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A chance of showers and
thunderstorms, mainly in the evening.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at
8 seconds. Intracoastal waters light chop. Showers likely with a
chance of thunderstorms in the morning, then showers with
thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds and east
2 feet at 8 seconds. Intracoastal waters light chop. A chance of
showers. A chance of thunderstorms, mainly in the evening.
.THURSDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A chance of showers. A slight chance of thunderstorms in
the morning, then a chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
5 to 10 knots after midnight. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds and southeast 2 feet at 7 seconds.
Intracoastal waters a moderate chop. A chance of showers with a
slight chance of thunderstorms in the evening, then a slight
chance of showers after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A chance of showers and
thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms in the afternoon. A slight chance of showers in the
evening.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-222115-
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-
204 AM EDT Tue Jul 22 2025

.TODAY...West winds 5 to 10 knots, becoming south this afternoon.
Seas around 2 feet. Wave Detail: West 2 feet at 3 seconds and
east 2 feet at 8 seconds. A chance of showers and thunderstorms.
.TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. A chance of thunderstorms.
Showers likely, mainly in the evening.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds and southeast 2 feet at
8 seconds. A chance of thunderstorms. Showers.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around
2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of
thunderstorms. Showers likely, mainly in the evening.
.THURSDAY AND THURSDAY NIGHT...South winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: Southeast 3 feet at 8 seconds and south
2 feet at 4 seconds. A chance of showers and thunderstorms.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. A slight chance of
thunderstorms. A chance of showers, mainly in the morning.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$