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FZUS52 KJAX 100002
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
802 PM EDT Sat Aug 9 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.

AMZ400-101515-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
802 PM EDT Sat Aug 9 2025

.SYNOPSIS...

A nearly stationary frontal boundary will be across the local waters
through the weekend. An area of low pressure may develop along this
boundary near the coast this weekend. This low would move then north
of the area by early Monday. High pressure will build to the
northeast next week, with south flow continuing below headline
levels.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 07, 2025 at 1200 UTC...

 36 nautical miles east of Flagler Beach.
 46 nautical miles east of Saint Augustine Beach.
 47 nautical miles east of Jacksonville Beach.
 59 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-101515-
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-
802 PM EDT Sat Aug 9 2025

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Southeast 3 feet at
5 seconds and east 2 feet at 8 seconds. Intracoastal waters a
moderate chop. Showers. A chance of thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at
5 seconds and northeast 2 feet at 8 seconds. Intracoastal waters
a moderate chop. Showers likely with a chance of thunderstorms in
the morning, then showers with thunderstorms likely in the
afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 5 seconds and northeast 2 feet at 8 seconds.
Intracoastal waters a moderate chop. A chance of thunderstorms.
Showers.
.MONDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East
3 feet at 8 seconds and southeast 2 feet at 5 seconds.
Intracoastal waters a moderate chop. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.MONDAY NIGHT AND TUESDAY...Southeast winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east
2 feet at 9 seconds. Intracoastal waters light chop. A chance of
showers and thunderstorms.
.TUESDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
7 seconds. Intracoastal waters light chop. A chance of showers. A
chance of thunderstorms, mainly in the evening.
.WEDNESDAY THROUGH THURSDAY...Southwest 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.

$$

AMZ470-472-474-101515-
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-
802 PM EDT Sat Aug 9 2025

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet, occasionally to 6 feet. Wave Detail: Southeast 3 feet at
4 seconds and northeast 3 feet at 8 seconds. Showers. A chance of
thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at
5 seconds and northeast 3 feet at 9 seconds. Showers with a
chance of thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
9 seconds and southeast 2 feet at 5 seconds. Showers with a
chance of thunderstorms.
.MONDAY...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: East 3 feet at 9 seconds and southeast 2 feet at
5 seconds. A chance of thunderstorms. Showers, mainly in the
morning.
.MONDAY NIGHT AND TUESDAY...Southeast winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and southeast
2 feet at 5 seconds. A chance of showers and thunderstorms.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds. A chance of showers
and thunderstorms.
.WEDNESDAY THROUGH THURSDAY...Southwest winds 5 to 10 knots. Seas
2 to 3 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$