046
FZUS52 KJAX 162343
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
743 PM EDT Wed Jul 16 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.

AMZ400-171445-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
743 PM EDT Wed Jul 16 2025

.SYNOPSIS...

A broad area of low pressure continues to shift westward across the
northern Gulf while the Atlantic high pressure extends across the
local waters. Breezy southerly winds between those two features
will continue this evening then gradually diminish overnight. The
high will slide south and extend across south Florida late Friday
allowing weak offshore flow to develop. Afternoon thunderstorm
chances will be low through the rest of the week and over the
weekend but are expected to increase over the waters next week as
a trough shifts toward the area.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 15, 2025 at 1200 UTC...

 60 nautical miles east northeast of Flagler Beach.
 59 nautical miles east of Saint Augustine Beach.
 61 nautical miles east of Jacksonville Beach.
 66 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-171445-
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-
743 PM EDT Wed Jul 16 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 6 AM EDT
THURSDAY...

.REST OF TONIGHT...Southeast winds around 15 knots. Seas 3 to 4
feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6
seconds. Intracoastal waters a moderate chop.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds. Intracoastal waters a
moderate chop. A slight chance of showers and thunderstorms in
the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast
3 feet at 7 seconds. Intracoastal waters a moderate chop.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light
chop. A slight chance of showers in the morning, then a chance of
showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds. Intracoastal waters light
chop.
.SATURDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 8 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Intracoastal waters light chop.
.SUNDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms.
.MONDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms in the morning, then a chance of thunderstorms
through the night. A chance of showers. A slight chance of
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-171445-
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-
743 PM EDT Wed Jul 16 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 6 AM EDT
THURSDAY...

.REST OF TONIGHT...Southeast winds around 15 knots. Seas 3 to 4
feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6
seconds.
.THURSDAY...South winds around 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A slight chance of showers
and thunderstorms.
.THURSDAY NIGHT...South winds around 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 7 seconds. A slight
chance of showers and thunderstorms after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds. A slight chance of showers
and thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 8 seconds.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds. A slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
3 feet. A slight chance of showers after midnight.
.SUNDAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots. Seas 2 to 3 feet. A slight chance of thunderstorms. A
slight chance of showers, then a chance of showers after
midnight.
.MONDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$