538
FZUS52 KMLB 201820
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
220 PM EDT Sun Sep 20 2026

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.

AMZ500-210715-
Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm
220 PM EDT Sun Sep 20 2026

.SYNOPSIS...Weak onshore flow will continue the next few days,
with scattered to numerous showers and storms. The highest
coverage is forecast during the overnight and morning hours.
Later in the week, a frontal passage will increase north-northeast
winds and build seas, creating hazardous conditions, especially
in the Gulf Stream.

.GULF STREAM HAZARDS...None.

The approximate location of the west wall of the Gulf Stream based on
the Real Time Ocean Forecast System as of Sunday, September 20th, 2026.

42 nautical miles east of Ponce Inlet.
28 nautical miles east of Port Canaveral.
24 nautical miles east of Sebastian Inlet.
16 nautical miles east of Fort Pierce Inlet.
11 nautical miles east of Saint Lucie Inlet.

$$

AMZ550-210715-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
220 PM EDT Sun Sep 20 2026

.TONIGHT...East winds around 5 knots, becoming north late. Seas
2 feet. Wave Detail: East 2 feet at 8 seconds and southeast
1 foot at 4 seconds. Smooth on the intracoastal waters. A slight
chance of showers and thunderstorms.
.MONDAY...North winds around 5 knots, becoming northeast in the
afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. A light chop on the
intracoastal waters. A slight chance of thunderstorms. A chance
of showers in the morning, then a slight chance of showers in the
afternoon.
.MONDAY NIGHT...East winds around 5 knots, becoming southwest
after midnight. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. Smooth on the
intracoastal waters. A slight chance of thunderstorms. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.TUESDAY...North winds around 5 knots, becoming east in the
afternoon. Seas 2 feet. Wave Detail: East 2 feet at 8 seconds. A
light chop on the intracoastal waters. A slight chance of showers
and thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Seas 2 feet. Wave Detail: East 2 feet
at 8 seconds. Smooth on the intracoastal waters. A slight chance
of showers and thunderstorms.
.WEDNESDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 2 feet. Wave Detail: East 2 feet at 8 seconds and
southeast 1 foot at 4 seconds. A light chop on the intracoastal
waters. A chance of showers with a slight chance of thunderstorms
in the morning, then showers likely with a chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 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.
.THURSDAY...North winds 15 to 20 knots, becoming northeast 20 to
25 knots in the afternoon. Seas 3 to 4 feet, building to 4 to
6 feet, occasionally to 8 feet in the afternoon. Rough on the
intracoastal waters. A chance of showers with a slight chance of
thunderstorms in the morning, then showers likely with a chance
of thunderstorms in the afternoon.
.THURSDAY NIGHT...North winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Rough on the intracoastal waters. A
chance of showers. A chance of thunderstorms in the evening, then
a slight chance of thunderstorms after midnight.
.FRIDAY...North winds 20 to 25 knots. Seas 7 to 8 feet,
occasionally to 10 feet. Rough on the intracoastal waters. A
chance of showers. A slight chance of thunderstorms in the
afternoon.
.FRIDAY NIGHT...Northeast winds 20 to 25 knots, diminishing to
around 15 knots after midnight. Seas 6 to 8 feet, occasionally to
10 feet. Rough on the intracoastal waters. A chance of showers in
the evening, then a slight chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-210715-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
220 PM EDT Sun Sep 20 2026

.TONIGHT...East winds around 5 knots, becoming southwest late.
Seas 2 feet. Wave Detail: Northeast 2 feet at 8 seconds and
southeast 1 foot at 4 seconds. Smooth on the intracoastal waters.
A chance of showers and thunderstorms.
.MONDAY...North winds around 5 knots, becoming northeast in the
afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 3 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms.
.MONDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Seas 2 feet. Wave Detail: Northeast
2 feet at 8 seconds and southeast 1 foot at 4 seconds. Smooth on
the intracoastal waters. A chance of showers and thunderstorms.
.TUESDAY...Northwest winds around 5 knots, becoming east in the
afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. 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.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Seas 2 feet. Wave Detail: Northeast
2 feet at 8 seconds and southeast 1 foot at 4 seconds. Smooth on
the intracoastal waters. A chance of showers. A chance of
thunderstorms in the evening, then a slight chance of
thunderstorms after midnight.
.WEDNESDAY...Northwest winds around 5 knots, becoming northeast
in the afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. Smooth on the
intracoastal waters. A chance of thunderstorms. A chance of
showers in the morning, then showers likely in the afternoon.
.WEDNESDAY NIGHT...East winds around 5 knots, becoming northeast
after midnight. Seas 2 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.
.THURSDAY...North winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 feet, building to 3 to 4 feet
in the afternoon. A moderate chop on the intracoastal waters. A
chance of showers with a slight chance of thunderstorms in the
morning, then showers likely with a chance of thunderstorms in
the afternoon.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming north
15 to 20 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Choppy on the intracoastal waters. A chance of showers. A
chance of thunderstorms in the evening, then a slight chance of
thunderstorms after midnight.
.FRIDAY...North winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Choppy on the intracoastal waters. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots, becoming north
10 to 15 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet. Choppy 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.

$$

AMZ555-210715-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
220 PM EDT Sun Sep 20 2026

.TONIGHT...East winds around 5 knots early this evening, becoming
southeast, becoming southwest after midnight, becoming light.
Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 3 seconds and
northeast 1 foot at 7 seconds. Smooth on the intracoastal waters.
A chance of showers and thunderstorms.
.MONDAY...Northwest winds around 5 knots, becoming northeast in
the afternoon. Seas 1 to 2 feet. Wave Detail: Northeast 2 feet at
9 seconds and southeast 1 foot at 3 seconds. 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.
.MONDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 8 seconds and southeast 1 foot at 4 seconds.
Smooth on the intracoastal waters. A chance of showers and
thunderstorms.
.TUESDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. Smooth on the
intracoastal waters. A chance of showers with a slight chance of
thunderstorms in the morning, then showers likely with a chance
of thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. 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.
.WEDNESDAY...West winds around 5 knots, becoming east in the
afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. Smooth on the
intracoastal waters. Showers likely. A chance of thunderstorms in
the morning, then thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...East winds around 5 knots, becoming northwest
after midnight. Seas 2 feet. Smooth on the intracoastal waters. A
chance of showers. A chance of thunderstorms in the evening, then
a slight chance of thunderstorms after midnight.
.THURSDAY...North winds 5 to 10 knots. Seas 2 feet. A light chop
on the intracoastal waters. A chance of thunderstorms. A chance
of showers in the morning, then showers likely in the afternoon.
.THURSDAY NIGHT...North winds 5 to 10 knots. Seas 3 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.
.FRIDAY...North winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A moderate chop on the intracoastal
waters. A chance of showers and thunderstorms.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots, becoming north
5 to 10 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet. A light chop 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.

$$

AMZ570-210715-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
220 PM EDT Sun Sep 20 2026

.TONIGHT...East winds 5 to 10 knots. Seas 2 feet. Wave Detail:
East 2 feet at 8 seconds and southeast 1 foot at 4 seconds. A
slight chance of showers and thunderstorms this evening, then a
chance of showers and thunderstorms after midnight.
.MONDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 8 seconds and southeast 1 foot at
4 seconds. A chance of showers. A chance of thunderstorms in the
morning, then a slight chance of thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet
at 8 seconds and southeast 1 foot at 4 seconds. A chance of
showers and thunderstorms.
.TUESDAY...Northwest winds around 5 knots, becoming northeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at
8 seconds and south 1 foot at 4 seconds. A chance of showers. A
slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
8 seconds and southeast 1 foot at 4 seconds. A chance of showers.
A chance of thunderstorms in the evening, then a slight chance of
thunderstorms after midnight.
.WEDNESDAY...North winds around 5 knots, becoming northeast in
the afternoon. Seas 2 feet. Wave Detail: East 2 feet at 8 seconds
and southeast 1 foot at 4 seconds. Showers likely with a chance
of thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 feet.
Showers likely with a chance of thunderstorms.
.THURSDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 3 feet, building to 3 to
5 feet, occasionally to 6 feet in the afternoon. Showers likely
with a chance of thunderstorms.
.THURSDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of thunderstorms. Showers likely
in the evening, then a chance of showers after midnight.
.FRIDAY...North winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 7 to 9 feet, occasionally to
11 feet. Showers likely with a slight chance of thunderstorms.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 7 to 9 feet, occasionally to
11 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ572-210715-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
220 PM EDT Sun Sep 20 2026

.TONIGHT...East winds 5 to 10 knots, becoming south late. Seas
2 feet. Wave Detail: East 2 feet at 8 seconds and southeast
1 foot at 4 seconds. A chance of showers and thunderstorms.
.MONDAY...North winds around 5 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
8 seconds and southeast 1 foot at 3 seconds. A chance of showers
and thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet
at 8 seconds and southeast 1 foot at 4 seconds. A chance of
showers and thunderstorms.
.TUESDAY...West winds around 5 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. A chance of showers.
A slight chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet
at 8 seconds and southeast 1 foot at 4 seconds. Showers likely. A
chance of thunderstorms in the evening, then a slight chance of
thunderstorms after midnight.
.WEDNESDAY...Northwest winds around 5 knots, becoming northeast
in the afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. A chance of
thunderstorms. Showers likely in the morning, then a chance of
showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds around 5 knots. Seas 2 feet. A
chance of thunderstorms. Showers likely in the evening, then a
chance of showers after midnight.
.THURSDAY...North winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 3 to 4 feet. Showers likely with
a chance of thunderstorms.
.THURSDAY NIGHT...North winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Showers likely with a chance of
thunderstorms in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight.
.FRIDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 6 to 8 feet, occasionally to
10 feet. A chance of showers with a slight chance of
thunderstorms in the morning, then showers likely with a chance
of thunderstorms in the afternoon.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 7 to 8 feet,
occasionally to 10 feet. A chance of showers with a slight chance
of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ575-210715-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
220 PM EDT Sun Sep 20 2026

.TONIGHT...East winds around 5 knots, becoming southwest late.
Seas 2 feet. Wave Detail: Northeast 2 feet at 6 seconds and
southeast 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.MONDAY...Northwest winds around 5 knots, becoming northeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 3 seconds. A chance of showers
and thunderstorms.
.MONDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 8 seconds and southeast 1 foot at 4 seconds.
A chance of showers and thunderstorms.
.TUESDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
8 seconds and south 1 foot at 4 seconds. A chance of
thunderstorms. A chance of showers in the morning, then showers
likely in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet
at 8 seconds and southeast 1 foot at 4 seconds. Showers likely
with a chance of thunderstorms.
.WEDNESDAY...Southwest winds around 5 knots, becoming northeast
in the afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and south 1 foot at 4 seconds. Showers likely with a
chance of thunderstorms.
.WEDNESDAY NIGHT...East winds around 5 knots, becoming north
after midnight. Seas 2 feet. Showers likely with a chance of
thunderstorms in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight.
.THURSDAY...North winds 5 to 10 knots. Seas 2 to 3 feet. Showers
likely with a chance of thunderstorms.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 4 to
6 feet, occasionally to 8 feet. Showers likely with a chance of
thunderstorms in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight.
.FRIDAY...North winds around 10 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of thunderstorms. A chance of
showers in the morning, then showers likely in the afternoon.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 7 to 8 feet,
occasionally to 10 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.

$$