Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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FZUS52 KJAX 171258
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
858 AM EDT Tue Jun 17 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.

AMZ400-172115-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
858 AM EDT Tue Jun 17 2025

.SYNOPSIS...

High pressure across central Florida today will position east of
the local waters Wednesday. This will focus scattered afternoon
and evening sea breeze storms across inland areas, with less
coverage across local marine waters each evening. Thunderstorm
coverage increases Thursday into the weekend as a surface front
edges southward across Georgia with a return of south to
southwest winds over the local waters.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jun 14, 2025 at 1200 UTC...

 64 nautical miles east of Flagler Beach.
 74 nautical miles east of Saint Augustine Beach.
 89 nautical miles east of Jacksonville Beach.
 99 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-172115-
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-
858 AM EDT Tue Jun 17 2025

.REST OF TODAY...South winds 5 to 10 knots, becoming southeast
10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 5 seconds and southeast 2 feet at 8 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
this afternoon.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds. Intracoastal waters a
moderate chop.
.WEDNESDAY...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 showers and thunderstorms in
the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 4 seconds. Intracoastal waters a
moderate chop.
.THURSDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 5 seconds and east 2 feet at 8 seconds.
Intracoastal waters a moderate chop. A chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Intracoastal waters a moderate
chop. A chance of showers. A chance of thunderstorms, mainly in
the evening.
.FRIDAY THROUGH SATURDAY...South winds 10 to 15 knots. Seas
around 2 feet. Intracoastal waters a moderate chop. A chance of
showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-172115-
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-
858 AM EDT Tue Jun 17 2025

.REST OF TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 8 seconds and south 2 feet at
5 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 5 seconds
and southeast 2 feet at 8 seconds.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 4 seconds and southeast 3 feet at
8 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 4 seconds and east 2 feet at
8 seconds.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 4 seconds and southeast 2 feet at
8 seconds. A slight chance of showers. A slight chance of
thunderstorms in the afternoon.
.THURSDAY 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 with a slight chance of
thunderstorms.
.FRIDAY THROUGH SATURDAY...South winds 5 to 10 knots. Seas 2 to
3 feet. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$