342
FZUS52 KJAX 150428
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1228 AM EDT Tue Jul 15 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.

AMZ400-151930-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1228 AM EDT Tue Jul 15 2025

.SYNOPSIS...

A weak area of low pressure over the Gulf Stream off the Florida
East Coast will begin to shift westward this morning. An increase in
showers and thunderstorms coverage is expected Today as the low
shifts westward across the Florida peninsula tonight and into the
eastern Gulf on Wednesday, with low pressure potentially
strengthening later in the week near the northern Gulf coast. NHC
has highlighted the northern Gulf coast for a low chance of
tropical/subtropical development for this week. Prevailing
northeasterly winds Today will shift to southerly by tonight as the
low shifts west of our local waters, with south-southeasterly winds
briefly strengthening to Caution levels tonight and Wednesday.
Rounds of showers and thunderstorms will continue through late in
the week as southerly winds prevail.


.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.


$$

AMZ450-452-454-151930-
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-
1228 AM EDT Tue Jul 15 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 6 seconds. Intracoastal
waters light chop. A slight chance of showers.
.TUESDAY...Northeast winds around 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
5 seconds. Intracoastal waters a moderate chop. A chance of
showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds around 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at
6 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.
.WEDNESDAY...South winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at
6 seconds. Intracoastal waters choppy. A chance of showers with a
slight chance of thunderstorms in the morning, then showers
likely with a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at
6 seconds. Intracoastal waters a moderate chop. A slight chance
of showers and thunderstorms in the evening.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds. Intracoastal waters a
moderate chop. A slight chance of showers and thunderstorms in
the morning, then a chance of showers and thunderstorms in the
afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet. Intracoastal waters a
moderate chop. A slight chance of showers and thunderstorms in
the evening.
.FRIDAY THROUGH SATURDAY...South winds 5 to 10 knots. Seas 2 to
3 feet. Intracoastal waters light chop. A chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-151930-
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-
1228 AM EDT Tue Jul 15 2025

.REST OF TONIGHT...Northeast winds around 10 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 6 seconds. A slight
chance of showers and thunderstorms late this evening, then a
chance of showers and thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 5 seconds. A chance of showers. A chance
of thunderstorms, mainly in the morning.
.TUESDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: South 4 feet at 5 seconds. A
chance of showers. A slight chance of thunderstorms.
.WEDNESDAY...South winds around 15 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: South 4 feet at 6 seconds. A
chance of thunderstorms. Showers likely, mainly in the morning.
.WEDNESDAY NIGHT AND THURSDAY...Southeast winds 10 to 15 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast
4 feet at 6 seconds. A chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas around 3 feet. Wave Detail:
Southeast 3 feet at 7 seconds. A chance of showers with a slight
chance of thunderstorms.
.FRIDAY...South winds 5 to 10 knots. Seas around 3 feet. A slight
chance of thunderstorms in the morning. A chance of showers
through the day. A chance of thunderstorms in the afternoon, then
a slight chance of showers and thunderstorms through the night.
.SATURDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$