390
FZUS52 KJAX 281826
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
226 PM EDT Mon Sep 28 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.

AMZ400-290900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
226 PM EDT Mon Sep 28 2026

.SYNOPSIS...

High pressure will shift over the region early this week with
prevailing west to southwest winds, turning southeasterly in the
afternoon nearshore from the Atlantic seabreeze circulation. High
pressure will shift east of the waters midweek with southerly winds,
turning easterly in the afternoon over the nearshore waters from
seabreeze circulation. Increasing moisture will bring a return of
scattered showers and isolated thunderstorms over the waters by late
in the week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 28, 2026 at 0000 UTC...

 58 nautical miles east of Flagler Beach.
 58 nautical miles east of Saint Augustine Beach.
 70 nautical miles east southeast of Jacksonville Beach.
 81 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-290900-
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-
226 PM EDT Mon Sep 28 2026

.REST OF TODAY...Southeast winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
11 seconds and south 2 feet at 3 seconds. Intracoastal waters a
moderate chop.
.TONIGHT...South winds 10 to 15 knots, becoming southwest 5 to
10 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Southeast 3 feet at 4 seconds and east
3 feet at 11 seconds. Intracoastal waters a moderate chop.
.TUESDAY...South winds around 5 knots, becoming southeast 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
light chop.
.TUESDAY NIGHT...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.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 3 seconds. Intracoastal waters light chop.
A slight chance of showers. A slight chance of thunderstorms in
the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 4 seconds. Intracoastal waters light
chop.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms in the afternoon. A slight chance of showers and
thunderstorms after midnight.
.FRIDAY...Southeast winds 10 to 15 knots, diminishing to 5 to
10 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop.
A slight chance of thunderstorms in the morning. A chance of
showers through the day. A chance of thunderstorms in the
afternoon, then a slight chance of showers and thunderstorms
through the night.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-290900-
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-
226 PM EDT Mon Sep 28 2026

.REST OF TODAY...South winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at
11 seconds and southwest 2 feet at 3 seconds.
.TONIGHT...South winds 10 to 15 knots, becoming southwest 5 to
10 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: South 3 feet at 4 seconds and northeast
3 feet at 10 seconds.
.TUESDAY...South winds around 5 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at
4 seconds and east 2 feet at 10 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 10 seconds.
.WEDNESDAY AND WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: Southeast 2 feet at 3 seconds and east
2 feet at 10 seconds. A slight chance of showers and
thunderstorms.
.THURSDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 4 seconds and east 2 feet at
10 seconds. A slight chance of thunderstorms. A chance of
showers, mainly in the morning.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. A slight chance of thunderstorms in the
morning. A chance of showers through the day. A chance of
thunderstorms in the afternoon, then a slight chance of showers
and thunderstorms through the night.

Winds and seas higher in and near thunderstorms.

$$