327
FZUS52 KJAX 311737
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
137 PM EDT Thu Jul 31 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.

AMZ400-010845-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
137 PM EDT Thu Jul 31 2025

.SYNOPSIS...

High pressure ridging will persist over area waters through Friday,
with the associated high passing just south of the region. This will
maintain a mostly south to southwest flow with brief periods of
exercise caution level winds during the evening hours. A cold front
approaches GA waters Friday Night and will stall close to GA waters
through the weekend. This will result in increased chances for
showers and storms this weekend, especially for GA waters. An active
pattern looks to continue into early next week as high pressure will
become centered more east of the region.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 29, 2025 at 1200 UTC...

 57 nautical miles east of Flagler Beach.
 66 nautical miles east of Saint Augustine Beach.
 76 nautical miles east of Jacksonville Beach.
 97 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-010845-
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-
137 PM EDT Thu Jul 31 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 6 PM EDT THIS
EVENING THROUGH LATE TONIGHT...

.REST OF TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 4 seconds. Intracoastal waters a
moderate chop. A slight chance of showers and thunderstorms this
afternoon.
.TONIGHT...South winds 15 to 20 knots, becoming west 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast
3 feet at 4 seconds. Intracoastal waters choppy.
.FRIDAY...Southwest winds 10 to 15 knots, becoming southeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
4 seconds. Intracoastal waters a moderate chop. A slight chance
of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots, becoming west after
midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
4 seconds. Intracoastal waters a moderate chop. A chance of
showers and thunderstorms, mainly in the evening.
.SATURDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
4 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming
southwest after midnight. Seas around 2 feet. Intracoastal waters
light chop. Showers with a chance of thunderstorms in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.SUNDAY THROUGH MONDAY...Southeast winds 5 to 10 knots. Seas 2 to
4 feet, occasionally to 5 feet. Intracoastal waters light chop.
Showers with thunderstorms likely.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-010845-
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-
137 PM EDT Thu Jul 31 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 6 PM EDT THIS
EVENING THROUGH LATE TONIGHT...

.REST OF TODAY...Southwest winds around 10 knots, becoming south
this afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at
4 seconds.
.TONIGHT...South winds 15 to 20 knots, becoming west 15 knots
after midnight. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4
seconds and east 2 feet at 9 seconds.
.FRIDAY...West winds 10 to 15 knots, becoming south in the
afternoon. Seas 2 to 3 feet. Wave Detail: West 3 feet at
4 seconds and east 2 feet at 9 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: South 3 feet at
4 seconds and east 2 feet at 8 seconds. A chance of showers and
thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
4 seconds and east 2 feet at 8 seconds. A chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 4 seconds and east 2 feet at 8 seconds. A chance of
thunderstorms. Showers.
.SUNDAY...North winds 5 to 10 knots, becoming southeast. Seas
2 to 4 feet, occasionally to 5 feet. A chance of thunderstorms.
Showers.
.MONDAY...East winds 5 to 10 knots, becoming southeast. Seas 3 to
5 feet, occasionally to 6 feet. A chance of thunderstorms.
Showers likely .

Winds and seas higher in and near thunderstorms.

$$