Coastal Waters Forecast
Issued by NWS Jacksonville, FL

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FZUS52 KJAX 200559
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
159 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.

AMZ400-202115-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
159 AM EDT Thu Jun 20 2024

.SYNOPSIS...

Strong high pressure centered off the New England coast will
maintain strong onshore winds and Small Craft Advisory level winds
and seas through tonight. Coastal troughing that is situated over
our local waters will continue to generate occasional fast moving
showers and isolated thunderstorms through tonight. Meanwhile, a
trough that is generating disorganized thunderstorm activity to
the east of the Bahamas will be steered westward, with this
feature approaching our local waters late tonight. Showers and
thunderstorms will briefly increase in coverage as this trough
moves across our region Friday morning. High pressure will then
weaken while shifting further eastward over the Atlantic this
weekend, allowing for diminishing winds and seas. Prevailing
southerly winds are expected by early next week, with scattered to
numerous thunderstorms remaining possible as another trough
settles over the southeastern states.

.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.

$$

AMZ450-452-454-202115-
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-
159 AM EDT Thu Jun 20 2024

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

.TODAY...East to Northeast winds 20 to 25 knots. Seas 6 to 7
feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at 7
seconds. Intracoastal waters choppy. A chance of showers and
isolated thunderstorms, mainly this morning.
.TONIGHT...Northeast winds 20 to 25 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail:
Northeast 7 feet at 7 seconds. Intracoastal waters rough. Showers
with a chance of thunderstorms.
.FRIDAY...East winds around 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 and
northeast 2 feet at 8 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 3 to 4 feet, occasionally to
5 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.

$$

AMZ470-472-474-202115-
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-
159 AM EDT Thu Jun 20 2024

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

.TODAY...East to Northeast winds 20 to 25 knots. Seas 7 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 8 seconds
and northeast 2 feet at 7 seconds. A chance of showers and slight
chance of thunderstorms.
.TONIGHT...Northeast winds 20 to 25 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail:
East 8 feet at 9 seconds and northeast 4 feet at 7 seconds.
Showers with a chance of thunderstorms.
.FRIDAY...Southeast winds around 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 9 seconds and
northeast 2 feet at 8 seconds. A slight chance of thunderstorms.
Showers.
.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 and
northeast 2 feet at 8 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 and northeast 2 feet at 7 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.

$$