436
FZUS52 KJAX 021745
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
145 PM EDT Tue Sep 2 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.

AMZ400-030900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
145 PM EDT Tue Sep 2 2025

.SYNOPSIS...

Low pressure offshore of the southeast Florida Atlantic coast will
track farther offshore through Wednesday night. Coastal troughs will
continue over the local Atlantic waters through the weekend with
high pressure north of the region. Small craft advisory conditions
subside late today.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 30, 2025 at 1200 UTC...

 64 nautical miles east of Flagler Beach.
 73 nautical miles east of Saint Augustine Beach.
 82 nautical miles east of Jacksonville Beach.
 92 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-030900-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
145 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

.TONIGHT...Northeast winds 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7
seconds. Intracoastal waters choppy. A slight chance of showers
this evening.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at
8 seconds. Intracoastal waters a moderate chop. A slight chance
of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
8 seconds. Intracoastal waters light chop.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 8 seconds. Intracoastal waters light
chop. A slight chance of showers. A slight chance of
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Northeast 2 feet at 8 seconds. Intracoastal
waters light chop. A slight chance of showers after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 8 seconds. Intracoastal waters light chop.
A slight chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Intracoastal waters light chop. A slight chance of
showers after midnight.
.SATURDAY...Northeast winds 5 to 10 knots, becoming southeast.
Seas around 2 feet. Intracoastal waters light chop. A slight
chance of showers through the day. A slight chance of
thunderstorms in the afternoon. A slight chance of showers after
midnight.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of thunderstorms.
A slight chance of showers, then a chance of showers after
midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ454-030900-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
145 PM EDT Tue Sep 2 2025

...SMALL CRAFT EXERCISE CAUTION...

.TONIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal
waters choppy. A chance of showers with a slight chance of
thunderstorms this evening, then a slight chance of showers after
midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: North 4 feet at 9 seconds.
Intracoastal waters a moderate chop. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at
8 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms after midnight.
.THURSDAY...Northeast winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: Northeast 3 feet at 8 seconds. Intracoastal waters
light chop. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 8 seconds. Intracoastal waters light
chop. A slight chance of thunderstorms in the evening. A slight
chance of showers.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 9 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.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A slight chance of thunderstorms.
A slight chance of showers in the evening, then a chance of
showers after midnight.
.SATURDAY THROUGH SUNDAY...East winds 5 to 10 knots. Seas around
2 feet. Intracoastal waters light chop. A chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-030900-
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-
145 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

.TONIGHT...Northeast winds 20 knots. Seas 5 to 7 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7
seconds. A slight chance of thunderstorms. A chance of showers,
mainly this evening.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
8 seconds. A slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at
8 seconds. A slight chance of showers and thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Northeast 3 feet at 8 seconds. A slight chance of showers
and thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 8 seconds. A slight chance of
showers and thunderstorms.
.FRIDAY AND FRIDAY NIGHT...East winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 9 seconds. A chance of
showers with a slight chance of thunderstorms.
.SATURDAY...Northeast winds 5 to 10 knots, becoming southeast.
Seas around 2 feet. A slight chance of showers and thunderstorms.
.SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. A
slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ474-030900-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
145 PM EDT Tue Sep 2 2025

.TONIGHT...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 5 feet at 8 seconds and north
3 feet at 8 seconds. A chance of showers with a slight chance of
thunderstorms.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: North 4 feet at 9 seconds
and north 2 feet at 5 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Northeast winds around 10 knots, diminishing
to around 5 knots after midnight. Seas 3 to 5 feet, occasionally
to 6 feet. Wave Detail: Northeast 4 feet at 8 seconds and north
2 feet at 5 seconds. A chance of showers and thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at
8 seconds. A chance of showers. A slight chance of thunderstorms
in the morning, then a chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 8 seconds. A
chance of showers with a slight chance of thunderstorms.
.FRIDAY AND FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 8 seconds. A chance of
showers and thunderstorms.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms through the day, then a slight
chance of showers in the evening. A slight chance of
thunderstorms through the night. A chance of showers after
midnight.
.SUNDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. A chance of
thunderstorms. A chance of showers, then showers likely after
midnight.

Winds and seas higher in and near thunderstorms.

$$