037
FZUS52 KJAX 140013
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
813 PM 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.

AMZ400-141515-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
813 PM EDT Sun Jul 13 2025

.SYNOPSIS...

Troughing developing over the Gulf Stream waters tonight will
shift slowly westward on Monday, crossing our local waters on
Monday night. Showers and thunderstorms over the Georgia waters
early this evening will diminish before midnight, with activity on
Monday mainly confined to the offshore waters. Showers and
thunderstorms will then increase in coverage on Tuesday and
Wednesday as troughing shifts westward across the Florida
peninsula and into the eastern Gulf, with low pressure potentially
organizing later in the week near the northern Gulf coast.
Prevailing northeasterly winds on Monday will shift to southerly
by late Tuesday as troughing 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.

$$

AMZ450-452-454-141515-
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-
813 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 8
seconds. Intracoastal waters mostly smooth. A chance of showers
and thunderstorms, mainly during the evening.
.MONDAY...North winds 5 to 10 knots, becoming northeast and
increasing to 10 to 15 knots in the afternoon. Seas around 2
feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters
becoming a light chop. A slight chance of showers and
thunderstorms.
.MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2
feet. Wave Detail: Northeast 2 feet at 6 seconds. Intracoastal
waters a light chop. A slight chance of showers and
thunderstorms.
.TUESDAY...East southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 6 seconds. Intracoastal waters a
light chop. Showers and thunderstorms likely in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3
feet. Wave Detail: Southeast 3 feet at 5 seconds. Intracoastal
waters a light chop. A chance of showers and thunderstorms.
.WEDNESDAY...South winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5
feet. Wave Detail: Southeast 4 feet at 6 seconds. Intracoastal
waters becoming choppy. A chance of showers with a slight chance
of thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Intracoastal waters a light chop. A
chance of showers and thunderstorms, mainly in the evening.
.THURSDAY AND THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2
to 3 feet. Intracoastal waters a light chop. Showers and
thunderstorms likely, mainly during the afternoon and evening.
.FRIDAY...South winds 5 to 10 knots, becoming southeast around 10
knots during the afternoon. Seas 2 to 3 feet. Intracoastal waters
becoming a light chop. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-141515-
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-
813 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...South winds 5 to 10 knots, becoming west 10 to
15 knots after midnight. Seas around 2 feet. Wave Detail: West 2
feet at 3 seconds and southeast 2 feet at 8 seconds. A chance of
showers and thunderstorms, mainly this evening.
.MONDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. 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 in the afternoon.
.MONDAY NIGHT...East southeast winds 5 to 10 knots. Seas around 2
feet. Wave Detail: Northeast 2 feet at 6 seconds. 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 thunderstorms.
Showers likely, mainly in the morning.
.TUESDAY NIGHT AND WEDNESDAY...Southeast winds 10 to 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast
4 feet at 6 seconds. Showers and thunderstorms likely.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...South winds 10 to 15
knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Southeast 4 feet at 6 seconds. Showers and thunderstorms likely.
.FRIDAY...South winds around 10 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$