136
FZUS52 KJAX 130513
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
113 AM EDT Sun Jul 13 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.

AMZ400-132015-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
113 AM EDT Sun Jul 13 2025

.SYNOPSIS...

Atlantic high pressure extending its axis westward across the
Florida peninsula will shift southward Today as a weak trough
develops near the Gulf Stream waters. This trough will then slowly
migrate westward across our local waters on Monday, with this
feature shifting into the northeast Gulf of Mexico by Tuesday.
Showers and thunderstorms will likely increase across our local
waters beginning later on Monday and Tuesday, with prevailing winds
shifting to southerly by Tuesday as this trough slowly organizes
over the eastern Gulf of Mexico towards midweek.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 12, 2025 at 1200 UTC...

 56 nautical miles east northeast of Flagler Beach.
 59 nautical miles east of Saint Augustine Beach.
 70 nautical miles east of Jacksonville Beach.
 90 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-132015-
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-
113 AM EDT Sun Jul 13 2025

.REST OF TONIGHT...Southwest winds around 10 knots. Seas 2 to
3 feet. Wave Detail: South 2 feet at 3 seconds and southeast
2 feet at 8 seconds. Intracoastal waters light chop. A slight
chance of showers. A slight chance of thunderstorms.
.SUNDAY...West winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
8 seconds. Intracoastal waters light chop. A slight chance of
showers in the morning, then a chance of showers and
thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds around 10 knots, becoming west
after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 8 seconds. Intracoastal waters light chop. A slight chance of
thunderstorms. A chance of showers, mainly in the evening.
.MONDAY...Northwest winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet. Intracoastal waters light chop. 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. Intracoastal waters light chop. A slight chance of
thunderstorms. A chance of showers, mainly in the evening.
.TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. Intracoastal waters
light chop. A chance of thunderstorms. A chance of showers in the
morning, then showers likely in the afternoon.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Intracoastal waters light chop. A slight chance of
thunderstorms in the evening. A chance of showers.
.WEDNESDAY THROUGH THURSDAY...South winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop. Showers likely
with a chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-132015-
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-
113 AM EDT Sun Jul 13 2025

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

Winds and seas higher in and near thunderstorms.

$$