500
FZUS52 KJAX 101231
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
831 AM EDT Sun Aug 10 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.

AMZ400-110345-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
831 AM EDT Sun Aug 10 2025

.SYNOPSIS...

A nearly stationary frontal boundary will remain across the local
waters through the weekend bringing with waves of showers and
storms. This front becomes diffuse Tuesday as high pressure builds
northeast of the region. The high builds east of the local waters
mid to late week, with a continuation of southerly winds at below
headline levels.


.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.


$$

AMZ450-452-454-110345-
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-
831 AM EDT Sun Aug 10 2025

.REST OF TODAY...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 9 seconds. Intracoastal waters
a moderate chop. A chance of showers with a slight chance of
thunderstorms this morning, then showers likely with 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 3 feet at
5 seconds and northeast 2 feet at 9 seconds. Intracoastal waters
a moderate chop. Showers likely with a chance of thunderstorms in
the evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.MONDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 2 feet at
5 seconds and east 2 feet at 8 seconds. Intracoastal waters a
moderate chop. A chance of showers and thunderstorms in the
morning, then showers and thunderstorms likely in the afternoon.
.MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 5 seconds and east 2 feet at 9 seconds.
Intracoastal waters a moderate chop. A chance of showers. A
chance of thunderstorms, mainly in the evening.
.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.

$$

AMZ470-472-474-110345-
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-
831 AM EDT Sun Aug 10 2025

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

$$