480
FZUS52 KJAX 260930
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
530 AM EDT Thu Sep 26 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.

AMZ400-262115-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
530 AM EDT Thu Sep 26 2024

.SYNOPSIS...

Hurricane Helene continues to travel northward through the Gulf of
Mexico and is expected to strengthen to a Major hurricane as it
accelerates towards the Panhandle of Florida on today.
Southeasterly winds will gradually strengthen to reach tropical
storm strength by this morning over area waters, lingering at
these levels into Friday. The tropical system will begin to move
away from the area sometime on Friday. Conditions subside below
small craft levels this weekend.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Sep 24, 2024 at 1200 UTC...

 44 nautical miles east of Flagler Beach.
 46 nautical miles east of Saint Augustine Beach.
 54 nautical miles east of Jacksonville Beach.
 69 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


$$

AMZ450-452-454-262115-
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-
530 AM EDT Thu Sep 26 2024

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...Tropical storm conditions expected. Southeast winds
25 to 30 knots, increasing to 30 to 40 knots with gusts up to
50 knots this afternoon. Seas 6 to 9 feet, occasionally to
11 feet, building to 9 to 13 feet, occasionally to 17 feet this
afternoon. Wave Detail: Southeast 12 feet at 8 seconds and east
2 feet at 10 seconds. Intracoastal waters extremely rough.
Showers with a chance of thunderstorms this morning, then showers
and thunderstorms likely this afternoon.
.TONIGHT...Tropical storm conditions expected. South winds 35 to
45 knots with gusts up to 60 knots. Seas 12 to 16 feet,
occasionally to 20 feet. Wave Detail: Southeast 15 feet at
9 seconds. Intracoastal waters extremely rough. Showers and
thunderstorms likely, mainly in the evening.
.FRIDAY...Southwest winds 25 to 30 knots, diminishing to 15 to
20 knots in the afternoon. Seas 7 to 10 feet, occasionally to
13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the
afternoon. Wave Detail: Southeast 10 feet at 9 seconds.
Intracoastal waters very rough. A slight chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at
8 seconds and east 3 feet at 12 seconds. Intracoastal waters a
moderate chop. A slight chance of showers after midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 3 feet at
7 seconds and east 2 feet at 11 seconds. Intracoastal waters
light chop. A chance of showers. A chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 7 seconds and east
2 feet at 11 seconds. Intracoastal waters light chop. A slight
chance of showers and thunderstorms.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Intracoastal waters light chop. A slight chance of
thunderstorms. A chance of showers, mainly in the evening.
.MONDAY...West winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet. Intracoastal waters light chop. A
slight chance of thunderstorms. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.MONDAY NIGHT...Southwest winds around 5 knots, becoming west
after midnight. Seas around 2 feet. Intracoastal waters light
chop. A slight chance of thunderstorms. A slight chance of
showers in the evening, then a chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-262115-
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-
530 AM EDT Thu Sep 26 2024

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...Tropical storm conditions expected. Southeast winds
25 to 35 knots. Seas 7 to 10 feet, occasionally to 13 feet,
building to 9 to 13 feet, occasionally to 17 feet this afternoon.
Wave Detail: Southeast 13 feet at 8 seconds and northeast 3 feet
at 10 seconds. Showers likely. Thunderstorms likely, mainly this
morning.
.TONIGHT...Tropical storm conditions expected. South winds 30 to
40 knots with gusts up to 55 knots. Seas 12 to 17 feet,
occasionally to 22 feet. Wave Detail: Southeast 16 feet at
9 seconds and east 16 feet at 10 seconds. A chance of
thunderstorms. Showers likely, mainly in the evening.
.FRIDAY...Southwest winds 25 to 30 knots with gusts up to
40 knots, becoming south 15 to 20 knots in the afternoon. Seas
9 to 13 feet, occasionally to 17 feet, subsiding to 6 to 9 feet,
occasionally to 11 feet in the afternoon. Wave Detail: South
12 feet at 9 seconds and east 12 feet at 12 seconds. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Southeast 6 feet at 8 seconds and southwest
2 feet at 4 seconds. A slight chance of thunderstorms. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Southeast 4 feet at 7 seconds and east
2 feet at 11 seconds. A chance of showers. A slight chance of
thunderstorms in the morning, then a chance of thunderstorms in
the afternoon.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at
7 seconds and southwest 2 feet at 4 seconds. A chance of showers
with a slight chance of thunderstorms.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet.
A chance of showers. A slight chance of thunderstorms in the
evening, then a chance of thunderstorms after midnight.
.MONDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. A slight chance of thunderstorms. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.MONDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas around 2 feet. A chance of showers with a slight
chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$