790
FZUS52 KJAX 180548
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
148 AM EDT Tue Jun 18 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.

AMZ400-182130-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
148 AM EDT Tue Jun 18 2024

.SYNOPSIS...

Strong high pressure will remain anchored off coastal New England
through Thursday. This feature will create gradually increasing
onshore winds and building seas across our local waters. Meanwhile,
a trough situated to the northeast of the Bahamas will be steered
westward towards the southeastern seaboard late this week, with
weak low pressure possibly developing as this system traverses the
Gulf Stream waters. Showers and thunderstorms are expected to
increase in coverage late this week and through the upcoming
weekend across our local waters. High pressure will weaken late
this week as it sinks slowly southward towards Bermuda, with the
axis of this surface ridge extending across our area during the
upcoming weekend. Winds and seas will gradually diminish as
prevailing winds shift to southeasterly on Saturday and then
southerly by Sunday.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jun 13, 2024 at 1200 UTC...

 62 nautical miles east northeast of Flagler Beach.
 66 nautical miles east of Saint Augustine Beach.
 75 nautical miles east of Jacksonville Beach.
 93 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-182130-
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-
148 AM EDT Tue Jun 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT EARLY THIS
MORNING THROUGH LATE THURSDAY NIGHT...

.TODAY...East winds increasing to 20 to 25 knots. Seas 5 to 7
feet, occasionally to 9 feet. Wave Detail: East 6 feet at 7
seconds. Intracoastal waters rough. A chance of showers.
.TONIGHT...East winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 7 feet at 7 seconds.
Intracoastal waters rough. A chance of showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds.
Intracoastal waters choppy. A chance of showers in the morning,
then showers with a slight chance of thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 8 seconds.
Intracoastal waters choppy. Showers likely with a slight chance
of thunderstorms in the evening, then a chance of showers after
midnight.
.THURSDAY AND THURSDAY NIGHT...Northeast winds 15 to 20 knots.
Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East
6 feet at 9 seconds and northeast 2 feet at 7 seconds.
Intracoastal waters choppy. Showers likely with a slight chance
of thunderstorms.
.FRIDAY THROUGH SATURDAY...South winds 10 to 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at
9 seconds and northeast 2 feet at 7 seconds. Intracoastal waters
a moderate chop. Showers with a slight chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-182130-
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-
148 AM EDT Tue Jun 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT EARLY THIS
MORNING THROUGH LATE THURSDAY NIGHT...

.TODAY...East winds increasing to 20 to 25 knots. Seas 5 to 7
feet, occasionally to 9 feet. Wave Detail: East 7 feet at 7
seconds. A chance of showers.
.TONIGHT...East winds 20 to 25 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 7 seconds. A
chance of showers. A slight chance of thunderstorms after
midnight.
.WEDNESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds.
Showers likely in the morning, then showers with a slight chance
of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds around 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: East 7 feet at 8 seconds.
Showers with a slight chance of thunderstorms in the evening,
then showers likely after midnight.
.THURSDAY AND THURSDAY NIGHT...Northeast winds 15 to 20 knots.
Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: East
7 feet at 9 seconds and northeast 3 feet at 8 seconds. Showers
with a slight chance of thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 9 seconds and
northeast 2 feet at 7 seconds. Showers with a slight chance of
thunderstorms, then a chance of showers after midnight.
.SATURDAY...Southeast winds 5 to 10 knots, becoming south. Seas
3 to 5 feet, occasionally to 6 feet. Showers likely through the
day. A slight chance of thunderstorms. A chance of showers
through the night.

Winds and seas higher in and near thunderstorms.

$$