630
FZUS52 KJAX 201502
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1102 AM EDT Thu Jun 20 2024

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.

AMZ400-202145-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1102 AM EDT Thu Jun 20 2024

.SYNOPSIS...

Strong high pressure centered southeast of the New England coast
will sink southward over the western Atlantic waters east of the
Mid Atlantic coast today with continued small craft advisory
conditions locally. Weak troughing over the area waters will help
to bring occasional showers and an isolated thunderstorm to the
waters. Tonight, a weak low passing just north of the Bahamas with
some disorganized showers and thunderstorm activity will move
westward into the local waters as the high to the north shifts
further east into the western Atlantic. The weak low will move
onshore early Friday morning and shift west through the day
towards the northeast Gulf of Mexico. The pressure gradient
between the high to the northeast and the low moving through the
region will continue small craft advisory conditions through much
of Friday before the pressure gradient relaxes as the low departs
and the high weakens to the east northeast near Bermuda into
Friday night leading to diminishing winds and seas. Seabreeze
circulations will create increasing coverage of showers and
thunderstorms along the coast and local waters this weekend as
light southeast flow prevails. A cold front will approach early
next week with winds becoming more southerly and elevated chances
for showers and thunderstorms.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jun 18, 2024 at 1200 UTC...

 57 nautical miles east of Flagler Beach.
 66 nautical miles east of Saint Augustine Beach.
 75 nautical miles east of Jacksonville Beach.
 88 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-202145-
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-
1102 AM EDT Thu Jun 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...

.REST OF TODAY...Northeast winds around 20 knots. Seas 5 to 7
feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8
seconds. Intracoastal waters choppy. A slight chance of showers.
.TONIGHT...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots after midnight. Seas 6 to 7 feet, occasionally to
9 feet. Wave Detail: East 7 feet at 9 seconds. Intracoastal
waters rough. Showers likely with a slight chance of
thunderstorms.
.FRIDAY...East winds 15 to 20 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: East 7 feet at 9 seconds. Intracoastal
waters choppy. Showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 9 seconds.
Intracoastal waters a moderate chop. A slight chance of
thunderstorms. Showers likely, mainly in the evening.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds.
Intracoastal waters light chop. A slight chance of thunderstorms.
A chance of showers in the morning, then showers in the
afternoon.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
5 to 10 knots after midnight. Seas around 3 feet. Wave Detail:
East 3 feet at 8 seconds. Intracoastal waters a moderate chop. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY THROUGH MONDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop. Showers with a
slight chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-202145-
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-
1102 AM EDT Thu Jun 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...

.REST OF TODAY...Northeast winds around 20 knots. Seas 6 to 8
feet, occasionally to 10 feet. Wave Detail: East 7 feet at 8
seconds. A chance of showers. A slight chance of thunderstorms
this afternoon.
.TONIGHT...Northeast winds 20 to 25 knots, becoming east 15 to
20 knots after midnight. Seas 7 to 8 feet, occasionally to
10 feet. Wave Detail: Northeast 8 feet at 9 seconds. Showers. A
chance of thunderstorms, mainly in the evening.
.FRIDAY...Southeast winds 15 to 20 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 9 seconds.
Showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 9 seconds.
Showers likely with a slight chance of thunderstorms.
.SATURDAY AND SATURDAY NIGHT...South winds 10 to 15 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
8 seconds. Showers likely with a slight chance of thunderstorms.
.SUNDAY THROUGH MONDAY...Southwest winds 10 to 15 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at
4 seconds and east 3 feet at 8 seconds. Showers likely with a
slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$