Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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747
FZUS52 KJAX 261730
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
130 PM EDT Fri Sep 26 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.

AMZ400-270800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
130 PM EDT Fri Sep 26 2025

.SYNOPSIS...

Increased storminess today as a front approaches from the west with
continued southerly winds. The front lingers over the area tonight
into Saturday with continued waves of storms. 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 are forecast to reach Advisory levels by Monday as
the tropical system tracks north of the Bahamas. An extended
duration of Advisory conditions is likely next week due to elevated
winds and seas. 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 25, 2025 at 1200 UTC...

 47 nautical miles east northeast of Flagler Beach.
 54 nautical miles east of Saint Augustine Beach.
 68 nautical miles east of Jacksonville Beach.
 75 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-270800-
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-
130 PM EDT Fri Sep 26 2025

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds and east
2 feet at 10 seconds. Intracoastal waters light chop. A chance of
showers and thunderstorms this afternoon.
.TONIGHT...South 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. Showers and
thunderstorms likely in the evening, then a chance of showers
with a slight chance of thunderstorms after midnight.
.SATURDAY...West winds around 5 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
10 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Seas 2 to 3 feet. Wave Detail: East
2 feet at 9 seconds. Intracoastal waters light chop. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at
4 seconds and east 3 feet at 8 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.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
8 seconds and east 3 feet at 5 seconds. Intracoastal waters
choppy. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.MONDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots. Seas 6 to 9 feet, occasionally to 11 feet. Intracoastal
waters rough. A chance of thunderstorms through the day, then a
slight chance of thunderstorms in the evening. A chance of
showers.
.TUESDAY...Northwest winds 20 to 25 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Intracoastal waters rough. A chance of
showers through the day. A slight chance of thunderstorms through
the night. A slight chance of showers through the night.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-270800-
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-
130 PM EDT Fri Sep 26 2025

.REST OF TODAY...Southwest winds around 5 knots, becoming south
this afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at
4 seconds and east 2 feet at 10 seconds. A slight chance of
showers and thunderstorms late this morning, then a chance of
showers and thunderstorms this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds and east 2 feet at 10 seconds.
Showers and thunderstorms likely, mainly in the evening.
.SATURDAY...Southwest winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
9 seconds and south 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: East 3 feet at 8 seconds. A chance of thunderstorms.
Showers.
.SUNDAY...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: East 4 feet at 8 seconds and east 3 feet at
4 seconds. Showers likely with a chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet, building to 6 to 9 feet, occasionally to
11 feet after midnight. Wave Detail: East 6 feet at 10 seconds
and east 3 feet at 5 seconds, becoming east 8 feet at 10 seconds.
Showers likely with a chance of thunderstorms.
.MONDAY...North winds around 20 knots. Seas 7 to 10 feet,
occasionally to 13 feet, building to 8 to 11 feet, occasionally
to 14 feet. Showers likely in the morning. A chance of
thunderstorms. A chance of showers. A slight chance of
thunderstorms after midnight.
.TUESDAY...Northwest winds 20 to 25 knots. Seas 8 to 11 feet,
occasionally to 14 feet. A chance of showers with a slight chance
of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$