Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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505
FZUS52 KJAX 141653
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1253 PM EDT Mon Jul 14 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.

AMZ400-150700-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1253 PM EDT Mon Jul 14 2025

.SYNOPSIS...

A weak area of low pressure has developed over the Gulf Stream today
and slowly shifts westward into the coastal waters tonight. Showers
and thunderstorms will then increase in coverage on Tuesday and
Wednesday as the low shifts westward across the Florida peninsula
and into the eastern Gulf, 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 late Tuesday as
the low shifts west of our local waters, with south-southeasterly
winds briefly strengthening to Caution levels near shore on
Wednesday afternoon. 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.


$$

AMZ450-452-454-150700-
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-
1253 PM EDT Mon Jul 14 2025

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northeast 2 feet at 8 seconds. Intracoastal
waters light chop. A slight chance of showers and thunderstorms
this afternoon.
.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 and thunderstorms.
.TUESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: East 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...South winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 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...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a
moderate chop. 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 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a
moderate chop. A slight chance of thunderstorms in the evening. A
slight chance of showers.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
Intracoastal waters a moderate chop. A chance of showers with a
slight chance of thunderstorms in the morning, then showers
likely with a chance of thunderstorms in the afternoon. A slight
chance of showers and thunderstorms in the evening.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. A slight chance of showers and
thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-150700-
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-
1253 PM EDT Mon Jul 14 2025

.REST OF TODAY...North winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northwest 2 feet at 3 seconds and east 2 feet at
8 seconds. A slight chance of showers and thunderstorms this
afternoon.
.TONIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 7 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.TUESDAY...East winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds and east 2 feet at 7 seconds. A
chance of thunderstorms. Showers likely, mainly in the morning.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 4 seconds. A chance of showers
and thunderstorms in the evening, then showers likely with a
slight chance of thunderstorms after midnight.
.WEDNESDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of
showers with a slight chance of thunderstorms.
.THURSDAY...South winds 10 to 15 knots, diminishing to 5 to
10 knots. Seas around 3 feet. A chance of showers.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of thunderstorms. A chance of showers, mainly in the
morning.

Winds and seas higher in and near thunderstorms.

$$