793
FZUS52 KJAX 040640
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
240 AM EDT Sun Oct 4 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.

AMZ400-042100-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
240 AM EDT Sun Oct 4 2026

.SYNOPSIS...

Southeasterly wind continues today with showers and thunderstorms
pushing eastward toward the Atlantic coast and into the waters late
this afternoon. Outside of thunderstorm activity, winds and seas are
expected to remain below Caution levels through at least Monday
afternoon.

Deteriorating conditions are expected Tuesday as cold front enters
and stalls over the area waters. Following the front, a strong high
pressure building will wedge down the southeastern seaboard,
initiating a prolonged surge of strong northeasterly winds and high
seas across our local waters. Small Craft Advisory conditions are
likely by Tuesday, with the potential for wind gusts near Gale force
through Thursday. Northeasterly winds are expected to gradually
decrease through Friday and shift onshore next weekend.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Oct 03, 2026 at 0000 UTC...

 54 nautical miles east of Flagler Beach.
 62 nautical miles east of Saint Augustine Beach.
 74 nautical miles east southeast of Jacksonville Beach.
 71 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-452-454-042100-
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-
240 AM EDT Sun Oct 4 2026

.REST OF TONIGHT...South 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.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Intracoastal waters light
chop. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots, becoming north
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 6 seconds. Intracoastal waters light chop. Showers with a
chance of thunderstorms in the evening, then showers likely with
a slight chance of thunderstorms after midnight.
.MONDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds. Intracoastal waters light chop.
A chance of showers with a slight chance of thunderstorms in the
morning, then showers with a chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 seconds. Intracoastal waters a moderate chop.
Showers. A slight chance of thunderstorms in the evening, then a
chance of thunderstorms after midnight.
.TUESDAY...Northeast winds 15 to 20 knots, increasing to 25 to
30 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet, building to 5 to 7 feet, occasionally to 9 feet in the
afternoon. Wave Detail: Northeast 3 feet at 4 seconds and east
2 feet at 9 seconds, becoming northeast 7 feet at 8 seconds and
northeast 3 feet at 5 seconds. Intracoastal waters very rough.
Showers with a chance of thunderstorms.
.TUESDAY NIGHT...Northeast winds 25 to 30 knots, diminishing to
20 to 25 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet. Intracoastal waters very rough. Showers with a chance of
thunderstorms.
.WEDNESDAY...Northeast winds 25 to 30 knots, diminishing to 20 to
25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Intracoastal
waters very rough. Showers through the day. A chance of
thunderstorms. A chance of showers through the night. A slight
chance of thunderstorms after midnight.
.THURSDAY...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to
4 to 5 feet, occasionally to 6 feet after midnight. Intracoastal
waters rough. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-042100-
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-
240 AM EDT Sun Oct 4 2026

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 7 seconds and east
2 feet at 11 seconds. A chance of showers and thunderstorms.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds and east 2 feet at
11 seconds. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet
at 6 seconds. Showers likely. A chance of thunderstorms, mainly
in the evening.
.MONDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
6 seconds. A chance of showers and thunderstorms in the morning,
then showers likely with a slight chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
10 to 15 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 2 feet at 5 seconds and east
2 feet at 9 seconds. Showers with a chance of thunderstorms.
.TUESDAY...Northeast winds 15 to 20 knots, increasing to 25 to
30 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet, building to 5 to 8 feet, occasionally to 10 feet in the
afternoon. Wave Detail: East 5 feet at 8 seconds and east 2 feet
at 5 seconds, becoming northeast 8 feet at 8 seconds. Showers
with a chance of thunderstorms.
.TUESDAY NIGHT...East winds 25 to 30 knots, becoming northeast
20 to 25 knots after midnight. Seas 7 to 10 feet, occasionally to
13 feet. Showers with a chance of thunderstorms.
.WEDNESDAY...Northeast winds 25 to 30 knots, diminishing to 20 to
25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Showers with
a chance of thunderstorms, then a chance of showers with a slight
chance of thunderstorms after midnight.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A slight chance of thunderstorms in the
morning. A chance of showers through the day. A chance of
thunderstorms in the afternoon, then showers likely with a slight
chance of thunderstorms through the night.

Winds and seas higher in and near thunderstorms.

$$