304
FZUS52 KJAX 251150
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
750 AM EDT Thu Sep 25 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.

AMZ400-260300-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
750 AM EDT Thu Sep 25 2025

.SYNOPSIS...

High pressure shifts south of the area today as a front approaches
from the northwest. Southerly flow increases ahead of the front
today and Friday with increasing thunderstorm chances. The front
moves south of the local waters Saturday. Northeast winds increase
Sunday and Monday as high pressure strengthens north of the region
and a potential tropical system nears the Bahamas. Building seas and
increasing winds nearing Advisory levels are expected early next
week as the tropical systems tracks north of the Bahamas. Local
interests should monitor the latest forecasts on this potential
tropical cyclone from the National Hurricane Center.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 23, 2025 at 1200 UTC...

 44 nautical miles east of Flagler Beach.
 53 nautical miles east of Saint Augustine Beach.
 61 nautical miles east of Jacksonville Beach.
 81 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-260300-
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-
750 AM EDT Thu Sep 25 2025

.REST OF TODAY...Southwest winds 5 to 10 knots, becoming
southeast 10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 10 seconds and south 2 feet at 5 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms this afternoon.
.TONIGHT...South winds 10 to 15 knots, becoming southwest after
midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
4 seconds and east 2 feet at 10 seconds. Intracoastal waters a
moderate chop. A chance of showers with a slight chance of
thunderstorms in the evening.
.FRIDAY...Southwest winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds and east 2 feet at 10 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
and thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 4 seconds and east 2 feet at
10 seconds. Intracoastal waters light chop. A chance of
thunderstorms. Showers likely, mainly in the evening.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
4 seconds and east 2 feet at 9 seconds. Intracoastal waters light
chop. A chance of showers with a slight chance of thunderstorms
in the morning, then showers likely with a chance of
thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming west
after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
9 seconds. Intracoastal waters light chop. A chance of showers. A
chance of thunderstorms, mainly in the evening.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Intracoastal waters a moderate chop. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Intracoastal waters a moderate chop. A
chance of showers. A chance of thunderstorms through the day,
then a slight chance of thunderstorms through the night.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-260300-
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-
750 AM EDT Thu Sep 25 2025

.REST OF TODAY...Southwest winds 5 to 10 knots, becoming south
10 to 15 knots this afternoon. Seas around 3 feet. Wave Detail:
East 3 feet at 9 seconds and south 2 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots, becoming southwest after
midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
South 3 feet at 4 seconds and east 2 feet at 9 seconds. A slight
chance of showers and thunderstorms.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at
4 seconds and east 2 feet at 11 seconds. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: South 2 feet at 4 seconds and east 2 feet at
10 seconds. Showers likely with a chance of thunderstorms.
.SATURDAY AND SATURDAY NIGHT...Southwest winds 5 to 10 knots.
Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and south
2 feet at 4 seconds. Showers likely with a chance of
thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms.
.MONDAY...Northeast winds around 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet, building to 6 to 9 feet, occasionally to
11 feet. A chance of showers. A chance of thunderstorms .

Winds and seas higher in and near thunderstorms.

$$