Coastal Waters Forecast
Issued by NWS Melbourne, FL

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FZUS52 KMLB 211839
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
239 PM EDT Tue Jul 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
239 PM EDT Tue Jul 21 2026

.SYNOPSIS...Tropical Storm Bertha will move gradually westward
along to just south of the northern Gulf Coast, as high pressure
over the Atlantic expands across the waters. Breezy southerly winds
persist at times through tonight and small craft should exercise
caution across the Volusia County waters. Winds then slacken
through mid to late week. Drier air will keep mostly dry
conditions across the waters through Thursday, with an increase in
showers and storms late this week and into the weekend.

.GULF STREAM HAZARDS...South winds 15 to 20 knots, north of the
Cape.

The approximate location of the west wall of the Gulf Stream based on
the Real Time Ocean Forecast System as of Tuesday, July 21st, 2026.

35 nautical miles east of Ponce Inlet.
26 nautical miles east of Port Canaveral.
21 nautical miles east of Sebastian Inlet.
13 nautical miles east of Fort Pierce Inlet.
 8 nautical miles east of Saint Lucie Inlet.

$$

AMZ550-220715-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
239 PM EDT Tue Jul 21 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots late. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at
5 seconds and east 2 feet at 8 seconds. Choppy on the
intracoastal waters.
.WEDNESDAY...South winds 10 to 15 knots, becoming southeast 15 to
20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 4 seconds and east 2 feet at 8 seconds.
Choppy on the intracoastal waters.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots, becoming south
5 to 10 knots after midnight. Seas 3 to 4 feet, subsiding to
2 feet after midnight. Wave Detail: Southeast 3 feet at 4 seconds
and east 1 foot at 8 seconds, becoming southeast 2 feet at
4 seconds and east 2 feet at 8 seconds after midnight. Choppy on
the intracoastal waters.
.THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 feet. Wave Detail: East 2 feet
at 8 seconds. A moderate chop on the intracoastal waters.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 feet.
Wave Detail: East 2 feet at 8 seconds. Mostly smooth on the
intracoastal waters.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 seconds. A light chop on the
intracoastal waters.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters.
.SATURDAY...South winds around 5 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet. A light chop on the intracoastal
waters.
.SATURDAY NIGHT...South winds around 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters. A slight chance of showers and thunderstorms
in the evening.
.SUNDAY...Northwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 2 feet. A light chop on the intracoastal
waters. A slight chance of showers and thunderstorms in the
afternoon.
.SUNDAY NIGHT...Southwest winds around 10 knots, becoming west
after midnight. Seas 2 to 3 feet. A light chop on the
intracoastal waters. A slight chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-220715-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
239 PM EDT Tue Jul 21 2026

.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 4 seconds and east 2 feet at
7 seconds. A light chop on the intracoastal waters.
.WEDNESDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 2 feet. Wave Detail: East 2 feet
at 8 seconds and southeast 1 foot at 4 seconds. A moderate chop
on the intracoastal waters.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
5 to 10 knots after midnight. 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.
.THURSDAY...East winds 5 to 10 knots. Seas 2 feet. Wave Detail:
East 2 feet at 8 seconds and southeast 1 foot at 3 seconds. A
light chop on the intracoastal waters.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 8 seconds. Mostly smooth on the
intracoastal waters.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 seconds. A light chop on the
intracoastal waters.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters.
.SATURDAY...South winds around 5 knots, becoming southeast 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.
.SATURDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters. A slight chance of showers and thunderstorms
in the evening.
.SUNDAY...West winds 5 to 10 knots, becoming southeast 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.
.SUNDAY NIGHT...Southwest winds around 10 knots, becoming west
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters. A slight chance of showers and
thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ555-220715-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
239 PM EDT Tue Jul 21 2026

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds. A light chop on the
intracoastal waters. A slight chance of showers after midnight.
.WEDNESDAY...South winds 5 to 10 knots, becoming southeast 10 to
15 knots in the afternoon. Seas 1 to 2 feet. Wave Detail: East
2 feet at 5 seconds. A moderate chop on the intracoastal waters.
A slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 2 feet at 5 seconds. Mostly smooth on
the intracoastal waters. A slight chance of showers and
thunderstorms after midnight.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: East 2 feet at 5 seconds. A light chop on the
intracoastal waters. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet. Wave
Detail: East 2 feet at 4 seconds. Mostly smooth on the
intracoastal waters. A slight chance of showers and thunderstorms
after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 9 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms in the
morning, then a slight chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A
light chop on the intracoastal waters. A chance of showers and
thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas 2 to 3 feet. Mostly smooth on the
intracoastal waters. A slight chance of showers and thunderstorms
in the evening.
.SUNDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 2 feet. 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.
.SUNDAY NIGHT...South winds around 10 knots, becoming west after
midnight. Seas 2 to 3 feet. Mostly smooth on the intracoastal
waters. A slight chance of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

AMZ570-220715-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
239 PM EDT Tue Jul 21 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 4 seconds and east 2 feet at
8 seconds.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 8 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 8 seconds and southeast 2 feet
at 4 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 feet. Wave
Detail: East 2 feet at 8 seconds.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 8 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 3 feet. Wave Detail:
East 3 feet at 8 seconds. A slight chance of showers and
thunderstorms in the morning.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 3 feet.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 3 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots, becoming southwest
after midnight. Seas 3 feet. A slight chance of showers and
thunderstorms.
.SUNDAY...West winds 10 to 15 knots, becoming south 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. A slight chance of showers
and thunderstorms in the morning.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots, becoming west
after midnight. Seas 3 to 4 feet. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

AMZ572-220715-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
239 PM EDT Tue Jul 21 2026

.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 8 seconds and south 2 feet at 3 seconds. A
slight chance of showers after midnight.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 feet. Wave
Detail: Southeast 2 feet at 8 seconds and south 1 foot at
3 seconds. A slight chance of showers and thunderstorms in the
morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 feet.
Wave Detail: East 2 feet at 8 seconds and south 1 foot at
3 seconds. A slight chance of showers after midnight.
.THURSDAY...East winds 5 to 10 knots. Seas 2 feet. Wave Detail:
East 2 feet at 8 seconds. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 8 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 3 feet. Wave Detail:
East 3 feet at 9 seconds. A slight chance of showers and
thunderstorms in the morning.
.FRIDAY NIGHT...Southeast winds around 10 knots, becoming south
after midnight. Seas 3 feet. A slight chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 3 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots, becoming southwest
after midnight. Seas 3 feet. A slight chance of showers and
thunderstorms.
.SUNDAY...West winds 10 to 15 knots, becoming south 5 to 10 knots
in the afternoon. Seas 3 feet. A slight chance of showers and
thunderstorms in the morning.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots, becoming west
after midnight. Seas 3 to 4 feet. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

AMZ575-220715-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
239 PM EDT Tue Jul 21 2026

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of showers
and thunderstorms.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of showers
and thunderstorms in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East 2 feet at 8 seconds and south 1 foot at
4 seconds. A slight chance of showers and thunderstorms after
midnight.
.THURSDAY...East winds 5 to 10 knots. Seas 2 feet. Wave Detail:
Southeast 2 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.THURSDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 6 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 9 seconds and southwest 1 foot at
3 seconds. A chance of showers and thunderstorms in the morning,
then a slight chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
A slight chance of showers and thunderstorms.
.SATURDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms in the morning.
.SATURDAY NIGHT...South winds 5 to 10 knots, becoming southwest
10 to 15 knots after midnight. Seas 2 to 3 feet. A slight 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.
.SUNDAY NIGHT...South winds 10 to 15 knots, becoming southwest
after midnight. Seas 2 to 3 feet. A slight chance of showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$