580
FZUS52 KMLB 180050
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
850 PM EDT Thu Sep 17 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.

AMZ500-181315-
Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm
850 PM EDT Thu Sep 17 2026

.SYNOPSIS...East to northeast winds 10-20 knots are forecast
to persist tonight. Isolated to scattered showers and isolated
storms will continue to develop across the waters, pushing
westward each day. Generally favorable boating conditions return
starting tomorrow and continue through the weekend, though shower
and storm activity will still be the main hazard.

.GULF STREAM HAZARDS...Northeast winds 15 to 20 knots, with seas
up to 6 feet.

The approximate location of the west wall of the Gulf Stream based on
the Real Time Ocean Forecast System as of Thursday, September 17th, 2026.

45 nautical miles east of Ponce Inlet.
33 nautical miles east of Port Canaveral.
26 nautical miles east of Sebastian Inlet.
18 nautical miles east of Fort Pierce Inlet.
12 nautical miles east of Saint Lucie Inlet.

$$

AMZ550-181315-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
850 PM EDT Thu Sep 17 2026

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Seas 4 to
5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at
7 seconds. A light chop on the intracoastal waters. A slight
chance of showers and thunderstorms.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 4 feet at 7 seconds. 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...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 7 seconds. 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.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 2 feet. Wave
Detail: East 2 feet at 7 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.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet. Wave
Detail: East 2 feet at 8 seconds and east 1 foot at 11 seconds.
Mostly smooth on the intracoastal waters. A chance of showers and
thunderstorms.
.SUNDAY...East winds 5 to 10 knots. Seas 2 feet. Wave Detail:
Northeast 2 feet at 8 seconds and east 1 foot at 11 seconds. A
light chop on the intracoastal waters. Showers likely with a
chance of thunderstorms.
.SUNDAY NIGHT...East winds around 5 knots. Seas 2 feet. Smooth on
the intracoastal waters. A chance of showers and thunderstorms.
.MONDAY...North winds around 5 knots, becoming east in the
afternoon. Seas 2 feet. 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.
.MONDAY NIGHT...Southeast winds around 5 knots, becoming
southwest 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.
.TUESDAY...North 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 morning, then
showers likely with a chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots. Seas 2 to 3 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.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-181315-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
850 PM EDT Thu Sep 17 2026

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at
7 seconds. A light chop on the intracoastal waters. A chance of
showers and thunderstorms.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 4 feet at 7 seconds. A moderate chop on the
intracoastal waters. A chance of showers and thunderstorms.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 7 seconds. Mostly smooth on the
intracoastal waters. A chance of showers and thunderstorms.
.SATURDAY...East winds 5 to 10 knots. Seas 2 feet. Wave Detail:
East 2 feet at 7 seconds. A light chop on the intracoastal
waters. A chance of showers and thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas 2 feet. Wave Detail: East 2 feet at
8 seconds and east 1 foot at 11 seconds. Mostly smooth on the
intracoastal waters. A chance of thunderstorms. Showers likely in
the evening, then a chance of showers after midnight.
.SUNDAY...East winds 5 to 10 knots. Seas 2 feet. Wave Detail:
East 2 feet at 8 seconds and east 1 foot at 11 seconds. A light
chop on the intracoastal waters. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.SUNDAY NIGHT...East winds around 5 knots, becoming southwest
after midnight. Seas 2 feet. Smooth on the intracoastal waters. A
chance of showers and thunderstorms.
.MONDAY...Northwest winds around 5 knots, becoming east in the
afternoon. Seas 2 feet. Smooth on the intracoastal waters. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.MONDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Seas 2 feet. Smooth on the intracoastal waters. A
chance of showers and thunderstorms.
.TUESDAY...West winds around 5 knots, becoming east in the
afternoon. Seas 2 feet. Smooth on the intracoastal waters. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots. Seas 2 feet. Smooth
on the intracoastal waters. A chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ555-181315-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
850 PM EDT Thu Sep 17 2026

.REST OF TONIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 4 feet at 8 seconds. A light chop on the intracoastal
waters. A chance of showers and thunderstorms.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 8 seconds and southeast 1 foot at
4 seconds. A light chop on the intracoastal waters. A chance of
showers and thunderstorms.
.FRIDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 7 seconds and southeast 1 foot at
4 seconds. Smooth on the intracoastal waters. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.SATURDAY...East winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 7 seconds and southeast 1 foot at
4 seconds. Smooth on the intracoastal waters. Showers likely with
a chance of thunderstorms.
.SATURDAY NIGHT...East winds around 5 knots, becoming south 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 thunderstorms. Showers likely in the evening,
then a chance of showers after midnight.
.SUNDAY...Southeast winds around 5 knots. Seas 2 feet. Wave
Detail: Northeast 2 feet at 7 seconds and southeast 1 foot at
4 seconds. Smooth on the intracoastal waters. A chance of showers
and thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.SUNDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Seas 1 to 2 feet. Smooth on the
intracoastal waters. A chance of showers and thunderstorms.
.MONDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas 1 to 2 feet. Smooth on the intracoastal
waters. A chance of showers and thunderstorms in the morning,
then showers with thunderstorms likely in the afternoon.
.MONDAY NIGHT...South winds around 5 knots. Seas 2 to 3 feet.
Smooth on the intracoastal waters. A chance of showers and
thunderstorms.
.TUESDAY...South winds around 5 knots, becoming east in the
afternoon. Seas 2 to 3 feet. Smooth on the intracoastal waters. A
chance of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots. Seas 2 to
3 feet. Smooth on the intracoastal waters. A chance of showers
and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ570-181315-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
850 PM EDT Thu Sep 17 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

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

$$

AMZ572-181315-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
850 PM EDT Thu Sep 17 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

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

Winds and seas higher in and near thunderstorms.

$$

AMZ575-181315-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
850 PM EDT Thu Sep 17 2026

.REST OF TONIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots early this morning. Seas 4 to 5 feet, occasionally to
6 feet. Wave Detail: North 5 feet at 7 seconds and south 1 foot
at 4 seconds. A chance of showers and thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: North 4 feet at 7 seconds and south 1 foot at 4 seconds.
A chance of showers and thunderstorms.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 3 feet. Wave
Detail: North 3 feet at 7 seconds and south 1 foot at 4 seconds.
A chance of thunderstorms. A chance of showers in the evening,
then showers likely after midnight.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 2 feet at 7 seconds and south 1 foot at
4 seconds. Showers likely with a chance of thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming south after
midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at
7 seconds and southeast 1 foot at 4 seconds. Showers likely.
Thunderstorms likely in the evening, then a chance of
thunderstorms after midnight.
.SUNDAY...Southeast winds around 5 knots. Seas 2 feet. Wave
Detail: North 2 feet at 7 seconds and southeast 1 foot at
4 seconds. Showers likely. A chance of thunderstorms in the
morning, then thunderstorms likely in the afternoon.
.SUNDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Seas 2 feet. Showers likely with a chance of
thunderstorms.
.MONDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Seas 2 feet. Showers likely with a chance of
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Showers likely with a chance of thunderstorms.
.TUESDAY...South winds around 5 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet. Showers likely with a chance of
thunderstorms.
.TUESDAY NIGHT...Southeast winds around 5 knots. Seas 2 to
3 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.

$$