425
FZUS52 KJAX 252203
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
603 PM EDT Wed Sep 25 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.

AMZ400-260915-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
603 PM EDT Wed Sep 25 2024

.SYNOPSIS...
Hurricane Helene will move into the Gulf this afternoon.
Southeasterly winds will gradually strengthen through the night
reaching tropical storm strength by Thursday morning over area
waters, lingering at these levels into Friday. The tropical system
will begin to move away from the area sometime on Friday. With a
trough lingering over the area into the weekend, conditions are
not expected to be at small craft advisory levels.


.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.


$$

AMZ450-452-454-260915-
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-
603 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

.REST OF TONIGHT...Tropical storm conditions possible. Southeast
winds 20 to 25 knots, increasing to 25 to 30 knots. Seas 5 to
6 feet, occasionally to 8 feet, building to 6 to 9 feet,
occasionally to 11 feet. Wave Detail: Southeast 8 feet at
7 seconds and east 2 feet at 11 seconds. Intracoastal waters very
rough. A chance of showers and thunderstorms this evening, then
showers and thunderstorms likely.
.THURSDAY...Tropical storm conditions expected. Southeast winds
25 to 30 knots, increasing to 30 to 40 knots with gusts up to
50 knots in the afternoon. Seas 7 to 9 feet, occasionally to
11 feet, building to 9 to 13 feet, occasionally to 17 feet in the
afternoon. Wave Detail: Southeast 13 feet at 8 seconds and east
4 feet at 10 seconds. Intracoastal waters extremely rough.
Showers. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.THURSDAY NIGHT...Tropical storm conditions expected. South winds
30 to 40 knots with gusts up to 55 knots. Seas 11 to 15 feet,
occasionally to 19 feet, subsiding to 9 to 13 feet, occasionally
to 17 feet after midnight. Wave Detail: Southeast 14 feet at
9 seconds. Intracoastal waters extremely rough. Showers with
thunderstorms likely in the evening, then showers likely with a
chance of thunderstorms after midnight.
.FRIDAY...Southwest winds 25 to 30 knots with gusts up to
40 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, diminishing to
5 to 10 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet after
midnight. Wave Detail: Southeast 5 feet at 8 seconds and east
2 feet at 12 seconds. Intracoastal waters a moderate chop. A
slight chance of showers and thunderstorms 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 12 seconds. Intracoastal waters
light chop. A slight chance of showers and thunderstorms in the
morning, then a chance of showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to
3 feet. 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...West winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms.
.MONDAY...Northwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Intracoastal waters light chop. A
slight chance of showers. A slight chance of thunderstorms in the
afternoon.
.MONDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet.
Intracoastal waters light chop. A slight chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-260915-
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-
603 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

.REST OF TONIGHT...Tropical storm conditions possible. Southeast
winds 20 to 25 knots, increasing to 25 to 30 knots. Seas 6 to
9 feet, occasionally to 11 feet. Wave Detail: Southeast 8 feet at
7 seconds and east 3 feet at 11 seconds. A slight chance of
showers and thunderstorms early. A chance of showers and
thunderstorms this evening, then showers and thunderstorms
likely.
.THURSDAY...Tropical storm conditions expected. Southeast winds
25 to 30 knots, increasing to 30 to 40 knots in the afternoon.
Seas 8 to 9 feet, occasionally to 11 feet, building to 10 to
14 feet, occasionally to 18 feet in the afternoon. Wave Detail:
Southeast 14 feet at 8 seconds and northeast 3 feet at
10 seconds. Showers likely. A chance of thunderstorms in the
morning, then thunderstorms likely in the afternoon.
.THURSDAY NIGHT...Tropical storm conditions expected. South winds
30 to 40 knots with gusts up to 55 knots. Seas 12 to 16 feet,
occasionally to 20 feet. Wave Detail: Southeast 15 feet at
9 seconds and east 15 feet at 10 seconds. Showers with
thunderstorms likely in the evening, then showers likely with a
chance of thunderstorms after midnight.
.FRIDAY...South winds 25 to 30 knots with gusts up to 40 knots,
diminishing to 20 to 25 knots in the afternoon. Seas 9 to
13 feet, occasionally to 17 feet, subsiding to 7 to 10 feet,
occasionally to 13 feet in the afternoon. Wave Detail: South
12 feet at 9 seconds and east 2 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 8 feet, occasionally to
10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet after
midnight. Wave Detail: South 7 feet at 8 seconds and east 2 feet
at 12 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. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at
7 seconds and east 2 feet at 12 seconds. A slight chance of
showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 3 to
4 feet, occasionally to 5 feet. A chance of showers and
thunderstorms.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...West winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers. A chance of thunderstorms, mainly in the
evening.
.MONDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms.
.MONDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet. A
chance of showers with a slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$