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FZUS52 KJAX 121741
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
141 PM EDT Sat Jul 12 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.

AMZ400-130800-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
141 PM EDT Sat Jul 12 2025

.SYNOPSIS...

High pressure extending across central Florida will move south
through Monday while a surface trough develops over portions of the
area coastal waters. The surface trough will move west of the area
by early Tuesday. Scattered thunderstorms will be possible each day
over area waters. Some storms may produce strong gusty winds and
frequent lightning.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 10, 2025 at 1200 UTC...

 50 nautical miles east of Flagler Beach.
 59 nautical miles east of Saint Augustine Beach.
 70 nautical miles east of Jacksonville Beach.
 95 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-130800-
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-
141 PM EDT Sat Jul 12 2025

.REST OF TODAY...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 8 seconds. Intracoastal waters
light chop. A slight chance of showers and thunderstorms late
this morning, then a chance of showers and thunderstorms this
afternoon.
.TONIGHT...South winds around 10 knots, becoming west after
midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
8 seconds. Intracoastal waters light chop. A chance of showers
and thunderstorms.
.SUNDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 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.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 8 seconds. Intracoastal waters
light chop. A chance of thunderstorms in the evening. A chance of
showers.
.MONDAY AND MONDAY NIGHT...East winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal
waters light chop. A chance of showers and thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds and southeast 2 feet at
4 seconds. Intracoastal waters light chop. A chance of showers in
the morning. A chance of thunderstorms through the day. Showers
likely in the afternoon, then a chance of showers with a slight
chance of thunderstorms through the night.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Intracoastal waters a moderate chop. A chance of thunderstorms in
the morning. Showers through the day. Thunderstorms likely in the
afternoon, then a chance of showers and thunderstorms in the
evening. A slight chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-130800-
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-
141 PM EDT Sat Jul 12 2025

.REST OF TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 8 seconds. A slight chance of
showers and thunderstorms this afternoon.
.TONIGHT...South winds around 10 knots, becoming southwest after
midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
8 seconds and south 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.SUNDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at
4 seconds and southeast 2 feet at 8 seconds. A chance of showers
and thunderstorms.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 8 seconds. A chance of showers.
A chance of thunderstorms, mainly in the evening.
.MONDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas around 2 feet. Wave Detail: East 2 feet at
8 seconds. A chance of showers. A slight chance of thunderstorms
in the morning, then a chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 9 seconds. A chance of
showers and thunderstorms.
.TUESDAY THROUGH WEDNESDAY...South winds 10 to 15 knots. Seas
2 to 4 feet, occasionally to 5 feet. Showers with a chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$