934
FZUS52 KJAX 111322
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
922 AM EDT Mon Aug 11 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.

AMZ400-120430-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
922 AM EDT Mon Aug 11 2025

.SYNOPSIS...

A diffuse frontal boundary across the Georgia waters will slowly
dissipate today as high pressure ridge builds north of the local
waters through tonight and Tuesday with southeast flow continuing.
This high pressure ridge will move over the local waters by
Wednesday, then build south of the waters by the end of the week,
and a southwest flow will develop. Winds and seas are expected to
remain below headline levels this week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Aug 09, 2025 at 1200 UTC...

 44 nautical miles east northeast of Flagler Beach.
 44 nautical miles east northeast of Saint Augustine Beach.
 47 nautical miles east of Jacksonville Beach.
 62 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-120430-
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-
922 AM EDT Mon Aug 11 2025

.REST OF TODAY...Southeast winds around 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at
5 seconds and northeast 2 feet at 9 seconds. Intracoastal waters
a moderate chop. A chance of showers. A slight chance of
thunderstorms this morning, then a chance of thunderstorms this
afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at
5 seconds and east 2 feet at 10 seconds. Intracoastal waters a
moderate chop. A chance of showers with a slight chance of
thunderstorms in the evening, then a slight chance of showers
after midnight.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds and east 2 feet at
9 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms.
.TUESDAY NIGHT...Southeast winds around 10 knots, becoming
southwest after midnight. 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 slight chance of thunderstorms
in the evening. A slight chance of showers.
.WEDNESDAY...Southwest winds around 5 knots, becoming southeast
in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
9 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.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 2 feet at 9 seconds. Intracoastal
waters light chop. A chance of showers and thunderstorms, mainly
in the evening.
.THURSDAY THROUGH FRIDAY...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.

$$

AMZ470-472-474-120430-
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-
922 AM EDT Mon Aug 11 2025

.REST OF TODAY...Southeast winds around 15 knots. Seas 4 to
5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at
5 seconds and east 2 feet at 9 seconds. A chance of showers and
thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at
5 seconds and east 2 feet at 10 seconds. A chance of showers with
a slight chance of thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds and east 3 feet at
9 seconds. A chance of thunderstorms. Showers likely, mainly in
the morning.
.TUESDAY NIGHT...Southeast winds around 10 knots, becoming south
after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at
9 seconds and southeast 2 feet at 5 seconds. A slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
9 seconds. A chance of showers. A slight chance of thunderstorms
in the morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 9 seconds. A chance of
showers and thunderstorms.
.THURSDAY THROUGH FRIDAY...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.

$$