103
FZUS52 KMLB 211820
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
220 PM EDT Mon Sep 21 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.

AMZ500-220715-
Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm
220 PM EDT Mon Sep 21 2026

.SYNOPSIS...Scattered to numerous showers and storms will remain a
threat through mid-week, especially during the overnight and early
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. However, rain chances
decrease into the weekend.

.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 Monday, September 21st, 2026.

42 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.
 9 nautical miles east of Saint Lucie Inlet.

$$

AMZ550-220715-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
220 PM EDT Mon Sep 21 2026

.TONIGHT...Southeast winds 5 to 10 knots, becoming west late.
Seas 2 feet. Wave Detail: Northeast 2 feet at 8 seconds and
southeast 1 foot at 4 seconds. Mostly smooth on the intracoastal
waters. A chance of showers and thunderstorms.
.TUESDAY...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 light chop on the
intracoastal waters. A slight chance of showers and thunderstorms
in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming west
after midnight. 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 thunderstorms in the
evening. A slight chance of showers.
.WEDNESDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at
3 seconds and east 2 feet at 8 seconds. A light chop on the
intracoastal waters. A chance of showers. A slight chance of
thunderstorms in the morning, then a chance of thunderstorms in
the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 4 seconds and east 2 feet at 8 seconds. 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.
.THURSDAY...North winds 15 to 20 knots, increasing to 25 to
30 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet, building to 6 to 8 feet, occasionally to 10 feet in the
afternoon. Wave Detail: Northeast 5 feet at 10 seconds and
northeast 4 feet at 4 seconds, becoming northeast 8 feet at
7 seconds in the afternoon. Very rough on the intracoastal
waters. Showers likely. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...North winds 20 to 25 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Rough on the intracoastal waters. A
slight chance of thunderstorms in the evening. A chance of
showers.
.FRIDAY...North winds 20 to 25 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Rough on the intracoastal waters. A
chance of showers with a slight chance of thunderstorms.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Choppy on the intracoastal waters. A
slight chance of showers in the evening.
.SATURDAY...North winds around 15 knots. Seas 6 to 7 feet,
occasionally to 9 feet. A moderate chop on the intracoastal
waters. A slight chance of showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 5 to
6 feet, occasionally to 8 feet. A light chop on the intracoastal
waters.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-220715-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
220 PM EDT Mon Sep 21 2026

.TONIGHT...Southeast winds 5 to 10 knots, becoming southwest
late. Seas 2 feet. Wave Detail: Northeast 2 feet at 8 seconds and
southeast 1 foot at 4 seconds. Mostly smooth on the intracoastal
waters. A chance of showers and thunderstorms.
.TUESDAY...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 slight 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. A light chop on the
intracoastal waters. A chance of showers. A slight chance of
thunderstorms in the morning, then a chance of thunderstorms in
the afternoon.
.WEDNESDAY NIGHT...Northeast winds around 5 knots, becoming
northwest after midnight. Seas 2 feet. Wave Detail: Northeast
2 feet at 8 seconds and southeast 1 foot at 4 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.
.THURSDAY...North winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 3 feet, building to 4 to
6 feet, occasionally to 8 feet in the afternoon. Wave Detail:
North 2 feet at 3 seconds and east 2 feet at 4 seconds, becoming
northeast 6 feet at 12 seconds and northeast 3 feet at 4 seconds
in the afternoon. Choppy 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 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Choppy on the intracoastal waters. A
chance of showers and thunderstorms in the evening, then a slight
chance of showers and thunderstorms after midnight.
.FRIDAY...North winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 6 to 8 feet, occasionally to
10 feet. Rough 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. Seas 6 to 8 feet,
occasionally to 10 feet. Choppy on the intracoastal waters. A
slight chance of showers in the evening.
.SATURDAY...North winds 15 to 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Choppy on the intracoastal waters. A
slight chance of showers.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 5 to
6 feet, occasionally to 8 feet. A light chop on the intracoastal
waters.

Winds and waves higher in and near thunderstorms.

$$

AMZ555-220715-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
220 PM EDT Mon Sep 21 2026

.TONIGHT...Southeast winds around 5 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet
at 9 seconds and southeast 1 foot at 4 seconds. Smooth on the
intracoastal waters. A chance of showers. A chance of
thunderstorms this evening, then a slight chance of thunderstorms
after midnight.
.TUESDAY...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. 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...West 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. Smooth on the
intracoastal waters. A chance of thunderstorms. A chance of
showers in the morning, then showers likely in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming west
after midnight. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 3 seconds. Smooth on the
intracoastal waters. A chance of showers and thunderstorms in the
evening, then a slight chance of showers and thunderstorms after
midnight.
.THURSDAY...North winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 3 to 4 feet. Wave Detail:
Northeast 3 feet at 12 seconds and east 2 feet at 4 seconds. A
moderate 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 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A light chop on the intracoastal waters.
A chance of showers and thunderstorms in the evening, then a
slight chance of showers and thunderstorms after midnight.
.FRIDAY...North winds 10 to 15 knots. Seas 6 to 8 feet,
occasionally to 10 feet. A moderate chop 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 10 to 15 knots. Seas 6 to 8 feet,
occasionally to 10 feet. A light chop on the intracoastal waters.
A chance of showers with a slight chance of thunderstorms in the
evening, then a slight chance of showers after midnight.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 6 to 8 feet,
occasionally to 10 feet. A moderate chop on the intracoastal
waters. A slight chance of thunderstorms. A slight chance of
showers in the morning, then a chance of showers in the
afternoon.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 6 to 8 feet, occasionally to
10 feet. A light chop on the intracoastal waters. A slight chance
of showers.

Winds and waves higher in and near thunderstorms.

$$

AMZ570-220715-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
220 PM EDT Mon Sep 21 2026

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

Winds and seas higher in and near thunderstorms.

$$

AMZ572-220715-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
220 PM EDT Mon Sep 21 2026

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

Winds and seas higher in and near thunderstorms.

$$

AMZ575-220715-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
220 PM EDT Mon Sep 21 2026

.TONIGHT...Southeast winds 5 to 10 knots, becoming south after
midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
4 seconds and northeast 2 feet at 8 seconds. A chance of
thunderstorms. A chance of showers this evening, then showers
likely after midnight.
.TUESDAY...West winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at
4 seconds and northeast 2 feet at 8 seconds. A chance of showers
and thunderstorms.
.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. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.WEDNESDAY...West winds around 5 knots, becoming north 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...Southeast winds around 5 knots, becoming west
after midnight. Seas 2 feet. Wave Detail: Northeast 2 feet at
8 seconds and southeast 1 foot at 4 seconds. A chance of showers
and thunderstorms.
.THURSDAY...North winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 12 seconds and south 2 feet at
4 seconds. Showers likely with a chance of thunderstorms.
.THURSDAY NIGHT...North winds 5 to 10 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of showers and thunderstorms.
.FRIDAY...North winds 10 to 15 knots. Seas 7 to 9 feet,
occasionally to 11 feet. A chance of showers and thunderstorms.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 8 to 9 feet,
occasionally to 11 feet. A chance of showers with a slight chance
of thunderstorms.
.SATURDAY...North winds 10 to 15 knots. Seas 8 to 9 feet,
occasionally to 11 feet. A chance of showers with a slight chance
of thunderstorms.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 7 to
8 feet, occasionally to 10 feet. A slight chance of showers.

Winds and seas higher in and near thunderstorms.

$$