166
FZUS52 KJAX 242151
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
551 PM EDT Tue Sep 24 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.

AMZ400-250930-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
551 PM EDT Tue Sep 24 2024

.SYNOPSIS...
Winds begin to increase tonight as Tropical Storm Helene
continues to strengthen as it enters in the Gulf on Wednesday.
Tropical Storm Helene will intensify into a major hurricane as it
treks northward toward the Big Bend region Thursday into Friday.
Tropical storm strength winds and high seas develop over the
coastal waters Wednesday night into Friday morning. Some gradual
improvement on Friday as the system pulls away to the north. A
trough may linger over the region Friday night into the weekend
with winds and seas below small craft advisory levels.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 21, 2024 at 1200 UTC...

 57 nautical miles east of Flagler Beach.
 54 nautical miles east of Saint Augustine Beach.
 65 nautical miles east southeast of Jacksonville Beach.
 90 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-250930-
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-
551 PM EDT Tue Sep 24 2024

...TROPICAL STORM WATCH IN EFFECT...

.REST OF TONIGHT...Southeast winds 5 to 10 knots, increasing to
10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: Southeast 3 feet at 4 seconds and east 3 feet at
10 seconds. Intracoastal waters a moderate chop.
.WEDNESDAY...Tropical storm conditions possible. Southeast winds
15 to 20 knots, increasing to 20 to 25 knots in the afternoon.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast
5 feet at 5 seconds and east 3 feet at 11 seconds. Intracoastal
waters rough. A slight chance of showers in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions possible. Southeast
winds 25 to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet.
Wave Detail: Southeast 9 feet at 7 seconds and east 2 feet at
11 seconds. Intracoastal waters very rough. Showers likely in the
evening, then showers with a chance of thunderstorms after
midnight.
.THURSDAY...Tropical storm conditions possible. Southeast winds
25 to 35 knots. Seas 8 to 10 feet, occasionally to 13 feet,
building to 9 to 12 feet, occasionally to 15 feet in the
afternoon. Wave Detail: Southeast 12 feet at 9 seconds.
Intracoastal waters extremely rough. Showers. A chance of
thunderstorms in the morning, then thunderstorms in the
afternoon.
.THURSDAY NIGHT...Tropical storm conditions possible. South winds
30 to 40 knots with gusts up to 50 knots. Seas 11 to 14 feet,
occasionally to 18 feet, subsiding to 9 to 13 feet, occasionally
to 17 feet after midnight. Wave Detail: Southeast 13 feet at
9 seconds. Intracoastal waters extremely rough. Showers and
thunderstorms in the evening, then showers likely with a chance
of thunderstorms after midnight.
.FRIDAY...South winds 25 to 30 knots, becoming southwest 20 to
25 knots in the afternoon. Seas 7 to 10 feet, occasionally to
13 feet, subsiding to 5 to 8 feet, occasionally to 10 feet in the
afternoon. Wave Detail: Southeast 9 feet at 8 seconds and
southeast 8 feet at 10 seconds. Intracoastal waters very rough. A
chance of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Intracoastal waters a moderate chop. A
slight chance of showers and thunderstorms.
.SATURDAY...West winds 5 to 10 knots, becoming east in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal
waters light chop. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A chance of showers and
thunderstorms.
.SUNDAY...Southwest winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Intracoastal waters light chop. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-250930-
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-
551 PM EDT Tue Sep 24 2024

...TROPICAL STORM WATCH IN EFFECT...

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at
10 seconds and southeast 3 feet at 4 seconds.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 6 feet at
6 seconds and east 4 feet at 11 seconds. A slight chance of
showers in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions possible. Southeast
winds 20 to 25 knots, increasing to 25 to 30 knots after
midnight. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail:
Southeast 9 feet at 7 seconds and east 3 feet at 11 seconds.
Showers likely in the evening, then showers with a chance of
thunderstorms after midnight.
.THURSDAY...Tropical storm conditions possible. Southeast winds
25 to 30 knots, increasing to 30 to 35 knots with gusts up to
45 knots in the afternoon. Seas 9 to 11 feet, occasionally to
14 feet, building to 11 to 12 feet, occasionally to 15 feet in
the afternoon. Wave Detail: Southeast 12 feet at 8 seconds and
east 4 feet at 10 seconds. Showers. A chance of thunderstorms in
the morning, then thunderstorms in the afternoon.
.THURSDAY NIGHT...Tropical storm conditions possible. South winds
30 to 40 knots with gusts up to 50 knots. Seas 11 to 15 feet,
occasionally to 19 feet. Wave Detail: Southeast 15 feet at
9 seconds and east 6 feet at 10 seconds. Showers and
thunderstorms.
.FRIDAY...South winds 25 to 30 knots, diminishing to 20 to
25 knots in the afternoon. Seas 9 to 12 feet, occasionally to
15 feet, subsiding to 7 to 10 feet, occasionally to 13 feet in
the afternoon. Wave Detail: South 12 feet at 9 seconds and east
3 feet at 12 seconds. A chance of showers and thunderstorms.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 5 to 8 feet,
occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally
to 8 feet after midnight. A chance of showers with a slight
chance of thunderstorms.
.SATURDAY...West winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 3 to 5 feet, occasionally to 6 feet. A chance of
showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
3 feet. A chance of showers and thunderstorms.
.SUNDAY...Southwest winds 5 to 10 knots, becoming northeast in
the afternoon. Seas 2 to 3 feet. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...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.

$$