620
FZUS52 KMLB 260318
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
1118 PM EDT Wed Sep 25 2024

Atlantic coastal waters from Flagler Beach to Jupiter Inlet out 60 nm.

Seas are provided as a range of the average height of the highest
one third of the waves, along with the occasional height of the
average highest ten percent of the waves.

ANZ500-261615-
Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm
1118 PM EDT Wed Sep 25 2024

.SYNOPSIS...Hurricane Helene is forecast to intensify and lift
north into the eastern Gulf of Mexico tonight. This system will
strengthen further to a Major Hurricane and accelerate north-
northeast toward the Florida Big Bend Thursday, bringing tropical
storm conditions to the local Atlantic waters. As Helene pulls
away Friday, a prolonged period of offshore flow is forecast late
week into the weekend with gradually subsiding seas.

.GULF STREAM HAZARDS...Southeast winds increasing 20 to 30 knots
and seas building 6 to 8 feet.

The approximate location of the west wall of the Gulf Stream
based on the Real Time Ocean Forecast System as of Wednesday,
September 25th.

41 nautical miles east of Ponce Inlet.
32 nautical miles east of Port Canaveral.
27 nautical miles east of Sebastian Inlet.
17 nautical miles east of Fort Pierce Inlet.
10 nautical miles east of Saint Lucie Inlet.

$$

AMZ550-261615-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
1118 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

.TONIGHT...Tropical storm conditions possible. Southeast winds
20 to 25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave
Detail: Southeast 7 feet at 6 seconds and northeast 2 feet at
11 seconds. Rough on the intracoastal waters. Showers likely with
a chance of thunderstorms.
.THURSDAY...Tropical storm conditions expected. Southeast winds
25 to 30 knots with gusts up to 40 knots, increasing to 35 to
40 knots with gusts up to 50 knots in the afternoon. Seas 6 to
8 feet, occasionally to 10 feet, building to 10 to 12 feet,
occasionally to 15 feet in the afternoon. Wave Detail: Southeast
11 feet at 8 seconds and northeast 2 feet at 11 seconds in the
afternoon. Extremely rough on the intracoastal waters. A chance
of thunderstorms. Showers.
.THURSDAY NIGHT...Tropical storm conditions expected. South winds
35 to 40 knots with gusts up to 55 knots, diminishing to 25 to
30 knots with gusts up to 40 knots after midnight. Seas 9 to
11 feet, occasionally to 14 feet, subsiding to 7 to 9 feet,
occasionally to 11 feet after midnight. Wave Detail: Southeast
11 feet at 8 seconds and northeast 2 feet at 11 seconds.after
midnight. Extremely rough on the intracoastal waters. A chance of
thunderstorms. Showers likely in the evening, then a chance of
showers after midnight.
.FRIDAY...South winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 4 to 5 feet, occasionally to 6 feet in the
afternoon. Wave Detail: Southeast 7 feet at 8 seconds and
northeast 2 feet at 12 seconds.in the afternoon. Rough on the
intracoastal waters. A slight chance of showers and thunderstorms
in the morning, then a chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Southeast 4 feet at 6 seconds and northeast
2 feet at 12 seconds. A light chop on the intracoastal waters. A
chance of showers and thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds and northeast 2 feet at
12 seconds. A light chop on the intracoastal waters. A chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to
3 feet. Mostly smooth on the intracoastal waters. A chance of
showers and thunderstorms in the evening, then a slight chance of
showers and thunderstorms after midnight.
.SUNDAY...West winds around 5 knots, becoming southwest in the
afternoon. Seas 2 feet. A light chop on the intracoastal waters.
A chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 2 feet. Mostly smooth on the intracoastal
waters. A slight chance of showers and thunderstorms.
.MONDAY...Northwest winds around 5 knots, becoming northeast in
the afternoon. Seas 2 feet. A light chop on the intracoastal
waters. A slight chance of showers and thunderstorms in the
afternoon.
.MONDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 2 feet. Smooth on the intracoastal waters. A
slight chance of thunderstorms. A chance of showers in the
evening, then a slight chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-261615-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
1118 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

.TONIGHT...Tropical storm conditions possible. Southeast winds
20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave
Detail: Southeast 7 feet at 7 seconds and northeast 3 feet at
11 seconds. Rough on the intracoastal waters. A chance of
thunderstorms. A chance of showers this evening, then showers
likely after midnight.
.THURSDAY...Tropical storm conditions expected. Southeast winds
30 to 35 knots, increasing to 35 to 40 knots in the afternoon.
Seas 7 to 9 feet, occasionally to 11 feet, building to 9 to
11 feet, occasionally to 14 feet in the afternoon. Wave Detail:
Southeast 11 feet at 8 seconds and northeast 2 feet at 11 seconds
in the afternoon. Extremely rough on the intracoastal waters.
Showers likely with a chance of thunderstorms.
.THURSDAY NIGHT...Tropical storm conditions expected. South winds
35 to 40 knots with gusts up to 50 knots, diminishing to 25 to
30 knots with gusts up to 40 knots after midnight. Seas 9 to
11 feet, occasionally to 14 feet, subsiding to 7 to 9 feet,
occasionally to 11 feet after midnight. Wave Detail: Southeast
10 feet at 8 seconds and northeast 2 feet at 11 seconds.after
midnight. Extremely rough on the intracoastal waters. A chance of
thunderstorms. Showers.
.FRIDAY...South winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Southeast 7 feet at 7 seconds and northeast
3 feet at 12 seconds. Rough on the intracoastal waters. A chance
of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at
6 seconds and northeast 3 feet at 12 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds and northeast 3 feet at
12 seconds. A light chop on the intracoastal waters. A chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 3 to
4 feet. Mostly smooth on the intracoastal waters. A chance of
showers and thunderstorms.
.SUNDAY...West winds around 5 knots, becoming south in the
afternoon. Seas 2 to 3 feet. A light chop on the intracoastal
waters. A chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters. A chance of showers and thunderstorms in the
evening, then a slight chance of showers and thunderstorms after
midnight.
.MONDAY...Northwest winds around 5 knots, becoming east in the
afternoon. Seas 2 to 3 feet. A light chop on the intracoastal
waters. A slight chance of showers and thunderstorms in the
afternoon.
.MONDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters. A chance of showers and thunderstorms in the
evening, then a slight chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ555-261615-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
1118 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

.TONIGHT...Tropical storm conditions possible. Southeast winds
20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave
Detail: Southeast 7 feet at 6 seconds and northeast 4 feet at
11 seconds. Rough on the intracoastal waters. A chance of
thunderstorms. A chance of showers this evening, then showers
likely after midnight.
.THURSDAY...Tropical storm conditions expected. South winds 30 to
35 knots with gusts up to 50 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: Southeast 9 feet at
7 seconds and northeast 4 feet at 10 seconds. Extremely rough on
the intracoastal waters. Showers likely with a chance of
thunderstorms.
.THURSDAY NIGHT...Tropical storm conditions expected. South winds
30 to 35 knots with gusts up to 50 knots, diminishing to 25 to
30 knots with gusts up to 40 knots after midnight. Seas 7 to
9 feet, occasionally to 11 feet. Wave Detail: Southeast 8 feet at
7 seconds and northeast 3 feet at 11 seconds. Extremely rough on
the intracoastal waters. A chance of thunderstorms. Showers.
.FRIDAY...South winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Southeast 6 feet at 6 seconds and northeast
4 feet at 12 seconds. Rough on the intracoastal waters. Showers
likely with a chance of thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 4 feet at
5 seconds and northeast 4 feet at 12 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at
12 seconds and southeast 3 feet at 4 seconds. A light chop on the
intracoastal waters. A chance of thunderstorms. A chance of
showers in the morning, then showers likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 3 to
4 feet. Mostly smooth on the intracoastal waters. A chance of
showers and thunderstorms in the evening, then a slight chance of
showers and thunderstorms after midnight.
.SUNDAY...West winds around 5 knots, becoming south in the
afternoon. Seas 3 to 4 feet. Smooth on the intracoastal waters. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 3 to 4 feet. Smooth on the intracoastal waters. A
chance of showers and thunderstorms in the evening, then a slight
chance of showers and thunderstorms after midnight.
.MONDAY...Northwest winds around 5 knots, becoming east in the
afternoon. Seas 3 feet. A light chop on the intracoastal waters.
A chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 2 to 3 feet. Smooth on the intracoastal waters. A
chance of showers and thunderstorms in the evening, then a slight
chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ570-261615-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
1118 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

.TONIGHT...Tropical storm conditions possible. Southeast winds
20 to 25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave
Detail: Southeast 7 feet at 7 seconds and northeast 3 feet at
11 seconds. A chance of thunderstorms. A chance of showers this
evening, then showers likely after midnight.
.THURSDAY...Tropical storm conditions expected. Southeast winds
25 to 30 knots with gusts up to 40 knots, increasing to 35 to
40 knots with gusts up to 50 knots in the afternoon. Seas 7 to
9 feet, occasionally to 11 feet, building to 10 to 12 feet,
occasionally to 15 feet in the afternoon. Wave Detail: Southeast
12 feet at 8 seconds and northeast 2 feet at 10 seconds in the
afternoon. Showers with a chance of thunderstorms.
.THURSDAY NIGHT...Tropical storm conditions expected. South winds
35 to 40 knots, diminishing to 30 to 35 knots after midnight.
Seas 10 to 13 feet, occasionally to 17 feet, subsiding to 9 to
11 feet, occasionally to 14 feet after midnight. Wave Detail:
Southeast 13 feet at 8 seconds and northeast 2 feet at
11 seconds.after midnight. A chance of thunderstorms. Showers.
.FRIDAY...South winds 25 to 30 knots with gusts up to 40 knots,
diminishing to 20 to 25 knots in the afternoon. Seas 8 to
10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet,
occasionally to 9 feet in the afternoon. Wave Detail: South
9 feet at 8 seconds and northeast 3 feet at 12 seconds.in the
afternoon. A chance of showers and thunderstorms.
.FRIDAY NIGHT...Southwest winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 4 to 5 feet, occasionally to
6 feet. Wave Detail: South 5 feet at 6 seconds and northeast
3 feet at 12 seconds. A chance of showers and thunderstorms.
.SATURDAY...Southwest winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: South
3 feet at 5 seconds and northeast 3 feet at 12 seconds. A chance
of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 3 feet. A
chance of showers and thunderstorms.
.SUNDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. 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...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 2 to 3 feet. A chance of showers and
thunderstorms.
.MONDAY...West winds 5 to 10 knots, becoming north in the
afternoon. Seas 2 to 3 feet. A slight chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas 2 to 3 feet. A chance of showers with a slight
chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ572-261615-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
1118 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

.TONIGHT...Tropical storm conditions possible. Southeast winds
20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave
Detail: Southeast 7 feet at 8 seconds and northeast 4 feet at
10 seconds. A chance of thunderstorms. A chance of showers this
evening, then showers likely after midnight.
.THURSDAY...Tropical storm conditions expected. Southeast winds
25 to 30 knots with gusts up to 40 knots, increasing to 30 to
35 knots with gusts up to 50 knots in the afternoon. Seas 8 to
9 feet, occasionally to 11 feet, building to 9 to 11 feet,
occasionally to 14 feet in the afternoon. Wave Detail: Southeast
10 feet at 8 seconds and northeast 3 feet at 10 seconds in the
afternoon. A chance of thunderstorms. Showers.
.THURSDAY NIGHT...Tropical storm conditions expected. South winds
30 to 35 knots, diminishing to 25 to 30 knots after midnight.
Gusts up to 50 knots. Seas 9 to 11 feet, occasionally to 14 feet.
Wave Detail: Southeast 10 feet at 8 seconds and northeast 3 feet
at 11 seconds. Showers with a chance of thunderstorms.
.FRIDAY...South winds 25 to 30 knots with gusts up to 40 knots,
diminishing to 20 to 25 knots in the afternoon. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: South 8 feet at 7 seconds
and northeast 4 feet at 12 seconds. Showers likely with a chance
of thunderstorms.
.FRIDAY NIGHT...Southwest winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: South 5 feet at 6 seconds and northeast
4 feet at 11 seconds. Showers likely with a chance of
thunderstorms.
.SATURDAY...Southwest winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at
11 seconds and south 3 feet at 5 seconds. A chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 3 to
4 feet. A chance of thunderstorms. Showers likely in the evening,
then a chance of showers after midnight.
.SUNDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 3 to 4 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, becoming west
after midnight. Seas 3 feet. A chance of showers and
thunderstorms.
.MONDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 3 feet. A slight chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas 2 to 3 feet. A chance of showers. A chance of
thunderstorms in the evening, then a slight chance of
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

AMZ575-261615-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
1118 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

.TONIGHT...Tropical storm conditions possible. Southeast winds
20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave
Detail: Southeast 7 feet at 6 seconds and northeast 5 feet at
10 seconds. A chance of thunderstorms. A chance of showers this
evening, then showers likely after midnight.
.THURSDAY...Tropical storm conditions expected. Southeast winds
25 to 30 knots, becoming south 30 to 35 knots in the afternoon.
Seas 8 to 9 feet, occasionally to 11 feet. Wave Detail: South
9 feet at 7 seconds and northeast 4 feet at 10 seconds. Showers
likely with a chance of thunderstorms.
.THURSDAY NIGHT...Tropical storm conditions expected. South winds
30 to 35 knots, diminishing to 25 to 30 knots after midnight.
Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: South
9 feet at 7 seconds and northeast 3 feet at 10 seconds. Showers
with a chance of thunderstorms.
.FRIDAY...South winds 20 to 25 knots. Seas 7 to 9 feet,
occasionally to 11 feet, subsiding to 6 to 7 feet, occasionally
to 9 feet in the afternoon. Wave Detail: South 8 feet at
7 seconds and northeast 4 feet at 12 seconds.in the afternoon.
Showers likely with a chance of thunderstorms.
.FRIDAY NIGHT...South winds 15 to 20 knots, becoming southwest
10 to 15 knots after midnight. Seas 5 to 6 feet, occasionally to
8 feet. Wave Detail: South 5 feet at 6 seconds and northeast
4 feet at 11 seconds. Showers likely with a chance of
thunderstorms.
.SATURDAY...Southwest winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at
11 seconds and south 3 feet at 5 seconds. A chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 4 feet. A
chance of showers and thunderstorms.
.SUNDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 3 to 4 feet. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas 3 to 4 feet. A chance of showers and
thunderstorms.
.MONDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 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 5 to 10 knots, becoming west after
midnight. Seas 3 feet. A chance of showers with a slight chance
of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$