500
FZUS52 KMLB 200730
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
330 AM EDT Wed Aug 20 2025

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.

ANZ500-202015-
Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm
330 AM EDT Wed Aug 20 2025

.SYNOPSIS...Hurricane Erin is forecast to pass well east of the
local waters today before turning northeast and out to sea by
late week. Hazardous boating conditions continue as building
swells reach the coast and breezy north-northwest winds develop.
In particular, very dangerous boating conditions will exist near
inlets especially during the outgoing tide cycles through
Thursday.

.GULF STREAM HAZARDS...Seas building 10 to 15 feet. Increasing
north-northwest winds 15-20 kts.

The approximate location of the west wall of the Gulf Stream based on
the Real Time Ocean Forecast System as of Wednesday, August 20th, 2025.

43 nautical miles east of Ponce Inlet.
30 nautical miles east of Port Canaveral.
24 nautical miles east of Sebastian Inlet.
17 nautical miles east of Fort Pierce Inlet.
11 nautical miles east of Saint Lucie Inlet.

$$

AMZ550-202015-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
330 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.TODAY...North winds 15 to 20 knots. Seas 9 to 11 feet,
occasionally to 14 feet. Wave Detail: East 10 feet at 15 seconds
and north 5 feet at 7 seconds. Choppy on the intracoastal waters.
A chance of thunderstorms. Showers likely this morning, then a
chance of showers this afternoon.
.TONIGHT...Northwest winds 10 to 15 knots, becoming west 5 to
10 knots after midnight. Seas 8 to 10 feet, occasionally to
13 feet, subsiding to 7 to 8 feet, occasionally to 10 feet after
midnight. Wave Detail: East 10 feet at 14 seconds, becoming east
8 feet at 13 seconds after midnight. A light chop on the
intracoastal waters.
.THURSDAY...West winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 7 feet at 12 seconds. A light chop on the intracoastal
waters. A chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 5 to 6 feet, occasionally to 8 feet. Wave
Detail: Northeast 6 feet at 12 seconds. 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.
.FRIDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 5 feet at 12 seconds. A light chop on the intracoastal
waters. A chance of showers and thunderstorms in the morning,
then showers and thunderstorms likely in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
13 seconds. Mostly smooth on the intracoastal waters. Showers
likely with a chance of thunderstorms in the evening, then a
chance of showers with a slight chance of thunderstorms after
midnight.
.SATURDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 3 to 4 feet. A light chop on the intracoastal
waters. Showers likely. A chance of thunderstorms in the morning,
then thunderstorms 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
thunderstorms. Showers likely in the evening, then a chance of
showers after midnight.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet. A
light chop on the intracoastal waters. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.SUNDAY 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.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-202015-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
330 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.TODAY...Northwest winds 15 to 20 knots. Seas 8 to 10 feet,
occasionally to 13 feet. Wave Detail: East 10 feet at 14 seconds.
Choppy on the intracoastal waters. A chance of showers and
thunderstorms.
.TONIGHT...Northwest winds 10 to 15 knots, becoming west 5 to
10 knots after midnight. Seas 8 to 10 feet, occasionally to
13 feet, subsiding to 7 to 8 feet, occasionally to 10 feet after
midnight. Wave Detail: East 9 feet at 14 seconds and northeast
4 feet at 7 seconds, becoming northeast 8 feet at 12 seconds
after midnight. A light chop on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.THURSDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 7 feet at 12 seconds. A light chop on the intracoastal
waters. Showers and thunderstorms likely in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: Northeast 6 feet at 12 seconds and southeast 2 feet at
5 seconds. 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.
.FRIDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 5 feet at 12 seconds and southeast 2 feet at 5 seconds.
A light chop on the intracoastal waters. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
13 seconds and southeast 2 feet at 5 seconds. Mostly smooth on
the intracoastal waters. Showers likely with a chance of
thunderstorms in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight.
.SATURDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 3 to 5 feet, occasionally to 6 feet. A light chop
on the intracoastal waters. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms 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
thunderstorms. Showers likely in the evening, then a chance of
showers after midnight.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet. A
light chop on the intracoastal waters. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 3 to 4 feet.
Mostly smooth on the intracoastal waters. A chance of showers. A
chance of thunderstorms in the evening, then a slight chance of
thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ555-202015-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
330 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.TODAY...Northwest winds 10 to 15 knots. Seas 6 to 8 feet,
occasionally to 10 feet, building to 8 to 10 feet, occasionally
to 13 feet this afternoon. Wave Detail: East 7 feet at
14 seconds, becoming east 9 feet at 14 seconds this afternoon. A
moderate chop on the intracoastal waters. A chance of showers. A
slight chance of thunderstorms this morning, then a chance of
thunderstorms this afternoon.
.TONIGHT...West winds 5 to 10 knots. Seas 8 to 10 feet,
occasionally to 13 feet. Wave Detail: Northeast 9 feet at
13 seconds. Mostly smooth on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.THURSDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 7 to 9 feet, occasionally to 11 feet. Wave
Detail: Northeast 8 feet at 12 seconds. A light chop on the
intracoastal waters. A slight chance of showers and thunderstorms
in the morning, then showers and thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at
12 seconds and east 2 feet at 5 seconds. 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.
.FRIDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 6 feet at 12 seconds and southeast 2 feet at 5 seconds.
A light chop on the intracoastal waters. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave
Detail: Northeast 6 feet at 13 seconds and east 2 feet at
5 seconds. Mostly smooth on the intracoastal waters. A chance of
thunderstorms. Showers likely in the evening, then a chance of
showers after midnight.
.SATURDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Seas 4 to 5 feet, occasionally to 6 feet. A light chop
on the intracoastal waters. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 4 to
5 feet, occasionally to 6 feet. Mostly smooth on the intracoastal
waters. A chance of showers. A chance of thunderstorms in the
evening, then a slight chance of thunderstorms after midnight.
.SUNDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 4 to 5 feet, occasionally to 6 feet. A light chop
on the intracoastal waters. A chance of showers and thunderstorms
in the morning, then showers and thunderstorms likely in the
afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 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.

$$

AMZ570-202015-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
330 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.TODAY...North winds 15 to 20 knots. Seas 11 to 15 feet,
occasionally to 19 feet. Wave Detail: East 13 feet at 15 seconds
and north 8 feet at 7 seconds. Showers likely with a chance of
thunderstorms.
.TONIGHT...Northwest winds 10 to 15 knots, becoming west after
midnight. Seas 10 to 13 feet, occasionally to 17 feet, subsiding
to 8 to 10 feet, occasionally to 13 feet after midnight. Wave
Detail: East 12 feet at 14 seconds and north 7 feet at 7 seconds,
becoming northeast 10 feet at 12 seconds after midnight. A chance
of showers and thunderstorms in the evening, then a slight chance
of showers and thunderstorms after midnight.
.THURSDAY...West winds 10 to 15 knots, becoming southwest 5 to
10 knots in the afternoon. Seas 7 to 9 feet, occasionally to
11 feet. Wave Detail: Northeast 9 feet at 12 seconds. A chance of
showers. A slight chance of thunderstorms in the morning, then a
chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds around 10 knots, becoming west
after midnight. Seas 6 to 8 feet, occasionally to 10 feet. Wave
Detail: Northeast 7 feet at 11 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.FRIDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 6 feet at 12 seconds and east 1 foot at 8 seconds.
Showers likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
13 seconds and southeast 1 foot at 8 seconds. Showers with a
chance of thunderstorms.
.SATURDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 4 to 6 feet, occasionally to 8 feet. A chance of
thunderstorms. Showers.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 4 to
6 feet, occasionally to 8 feet. A chance of thunderstorms.
Showers.
.SUNDAY...Southwest winds 5 to 10 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of thunderstorms. Showers.
.SUNDAY NIGHT...Southwest winds around 10 knots. Seas 4 to
5 feet, occasionally to 6 feet. Showers likely with a chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ572-202015-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
330 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.TODAY...Northwest winds 15 to 20 knots. Seas 10 to 12 feet,
occasionally to 15 feet, building to 11 to 14 feet, occasionally
to 18 feet this afternoon. Wave Detail: East 10 feet at
14 seconds and north 7 feet at 7 seconds, becoming east 12 feet
at 14 seconds and north 7 feet at 7 seconds this afternoon.
Showers likely. A chance of thunderstorms this morning, then
thunderstorms likely this afternoon.
.TONIGHT...Northwest winds 10 to 15 knots, becoming west after
midnight. Seas 10 to 12 feet, occasionally to 15 feet, subsiding
to 8 to 10 feet, occasionally to 13 feet after midnight. Wave
Detail: East 11 feet at 13 seconds and north 7 feet at 8 seconds,
becoming northeast 9 feet at 12 seconds and north 5 feet at
8 seconds after midnight. A chance of showers and thunderstorms
in the evening, then a slight chance of showers and thunderstorms
after midnight.
.THURSDAY...West winds 10 to 15 knots, becoming southwest 5 to
10 knots in the afternoon. Seas 7 to 9 feet, occasionally to
11 feet. Wave Detail: Northeast 9 feet at 12 seconds and north
4 feet at 7 seconds. A slight chance of showers and thunderstorms
in the morning, then a chance of showers and thunderstorms in the
afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 6 to 8 feet, occasionally to 10 feet. Wave
Detail: Northeast 7 feet at 11 seconds and north 3 feet at
10 seconds. Showers and thunderstorms likely.
.FRIDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 6 feet at 12 seconds and northwest 3 feet at
11 seconds. Showers likely. A chance of thunderstorms in the
morning, then thunderstorms likely in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
13 seconds and northwest 2 feet at 12 seconds. Showers with a
chance of thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Thunderstorms likely. Showers.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas 5 to
6 feet, occasionally to 8 feet. A chance of thunderstorms.
Showers.
.SUNDAY...Southwest winds around 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Showers likely. A chance of thunderstorms
in the morning, then thunderstorms likely in the afternoon.
.SUNDAY NIGHT...Southwest winds around 10 knots. Seas 4 to
5 feet, occasionally to 6 feet. Showers likely with a chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ575-202015-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
330 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.TODAY...Northwest winds 15 to 20 knots, diminishing to 10 to
15 knots late. Seas 8 to 10 feet, occasionally to 13 feet,
building to 10 to 12 feet, occasionally to 15 feet this
afternoon. Wave Detail: East 9 feet at 14 seconds and north
6 feet at 7 seconds, becoming east 10 feet at 14 seconds and
north 6 feet at 7 seconds this afternoon. A chance of showers and
thunderstorms this morning, then showers and thunderstorms likely
this afternoon.
.TONIGHT...West winds 10 to 15 knots. Seas 9 to 11 feet,
occasionally to 14 feet. Wave Detail: Northeast 10 feet at
12 seconds and north 5 feet at 8 seconds. A chance of showers and
thunderstorms in the evening, then a slight chance of showers and
thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 7 to 9 feet, occasionally to 11 feet. Wave
Detail: Northeast 9 feet at 11 seconds and north 4 feet at
8 seconds. A chance of thunderstorms. A chance of showers in the
morning, then showers likely in the afternoon.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas 6 to
8 feet, occasionally to 10 feet. Wave Detail: Northeast 7 feet at
11 seconds and northwest 3 feet at 10 seconds. Showers and
thunderstorms likely in the evening, then a chance of showers and
thunderstorms after midnight.
.FRIDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail:
Northeast 6 feet at 12 seconds and northwest 3 feet at
11 seconds. Showers likely. A chance of thunderstorms in the
morning, then thunderstorms likely in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 6 to 7 feet, occasionally to 9 feet. Wave
Detail: Northeast 6 feet at 13 seconds and south 2 feet at
5 seconds. Showers likely with a chance of thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Thunderstorms likely. Showers.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas 5 to
6 feet, occasionally to 8 feet. A chance of thunderstorms.
Showers likely in the evening, then a chance of showers after
midnight.
.SUNDAY...Southwest winds around 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. A chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon.
.SUNDAY NIGHT...Southwest winds around 10 knots. Seas 4 to
5 feet, occasionally to 6 feet. A chance of thunderstorms.
Showers likely in the evening, then a chance of showers after
midnight.

Winds and seas higher in and near thunderstorms.

$$