378
FZUS52 KMLB 200621
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
221 AM EDT Thu Aug 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.

AMZ500-201915-
Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm
221 AM EDT Thu Aug 20 2026

.SYNOPSIS...Generally favorable boating conditions prevail outside
of offshore moving storms. Westerly to southwesterly flow will
continue between a front stalled across the Southeast US and high
pressure over the Atlantic through the weekend. Winds shift south
to southeast in the afternoons and evenings as the sea breeze
develops. Stronger storms will be capable of wind gusts 34 kts or
greater, frequent cloud to water lightning, heavy downpours, and
locally higher seas.

.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 Thursday, August 20th, 2026.

46 nautical miles east of Ponce Inlet.
31 nautical miles east of Port Canaveral.
24 nautical miles east of Sebastian Inlet.
16 nautical miles east of Fort Pierce Inlet.
 9 nautical miles east of Saint Lucie Inlet.

$$

AMZ550-201915-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
221 AM EDT Thu Aug 20 2026

.TODAY...West winds around 5 knots, becoming southeast this
afternoon. Seas 1 to 2 feet. Wave Detail: East 1 foot at
4 seconds and east 1 foot at 9 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms this
afternoon.
.TONIGHT...Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Southeast 1 foot at 3 seconds and east 1 foot at
8 seconds. Mostly smooth on the intracoastal waters.
.FRIDAY...South winds around 5 knots, becoming southeast in the
afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at
3 seconds and east 1 foot at 9 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 1 foot at
9 seconds. Mostly smooth on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 feet. Wave Detail: South 2 feet at 4 seconds
and east 1 foot at 9 seconds. A light chop on the intracoastal
waters. Showers likely with a chance of thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds and east 1 foot at
9 seconds. Mostly smooth on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.SUNDAY...Southwest winds 5 to 10 knots, becoming south 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...Southwest winds 5 to 10 knots. Seas 2 feet.
Mostly smooth on the intracoastal waters. A slight chance of
showers and thunderstorms in the evening.
.MONDAY...Southwest winds around 5 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.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.
Mostly smooth on the intracoastal waters. A slight chance of
showers and thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-201915-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
221 AM EDT Thu Aug 20 2026

.TODAY...Southwest winds around 5 knots, becoming southeast this
afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at
3 seconds and east 1 foot at 9 seconds. A light chop on the
intracoastal waters. A slight chance of showers and thunderstorms
this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Southeast 1 foot at 3 seconds and east 1 foot at
9 seconds. Mostly smooth on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.FRIDAY...South winds around 5 knots, becoming southeast in the
afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at
3 seconds and east 1 foot at 9 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds and east 1 foot at
9 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.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 feet. Wave Detail: Southeast 2 feet at
4 seconds and east 1 foot at 9 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds and east 1 foot at
9 seconds. Mostly smooth on the intracoastal waters. A chance of
showers with a slight chance of 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 5 to 10 knots. Seas 2 feet. Mostly
smooth on the intracoastal waters. A slight chance of showers and
thunderstorms in the evening.
.MONDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas 1 to 2 feet. A light chop on the intracoastal
waters. A slight chance of showers and thunderstorms in the
afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.
Mostly smooth on the intracoastal waters. A slight chance of
showers and thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

AMZ555-201915-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
221 AM EDT Thu Aug 20 2026

.TODAY...Southwest winds around 5 knots, becoming southeast late
this morning and afternoon. Seas 1 to 2 feet. Wave Detail:
Southeast 1 foot at 3 seconds and northeast 1 foot at 8 seconds.
A light chop on the intracoastal waters. A slight chance of
showers and thunderstorms this afternoon.
.TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Southeast 1 foot at 3 seconds and northeast 1 foot at
8 seconds. Mostly smooth on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.FRIDAY...South winds around 5 knots, becoming 5 to 10 knots in
the afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at
3 seconds and northeast 1 foot at 8 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: Southeast 2 feet at 3 seconds and northeast 1 foot at
8 seconds. Mostly smooth on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.SATURDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at
3 seconds and northeast 1 foot at 10 seconds. A light chop on the
intracoastal waters. A chance of showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.
Wave Detail: Southeast 2 feet at 3 seconds and northeast 1 foot
at 9 seconds. Mostly smooth on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.SUNDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas 1 to 2 feet. A light chop on the intracoastal
waters. A slight chance of showers and thunderstorms in the
afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.
Mostly smooth on the intracoastal waters. A slight chance of
showers and thunderstorms in the evening.
.MONDAY...South winds around 5 knots, becoming southeast in the
afternoon. Seas 1 to 2 feet. A light chop on the intracoastal
waters. A slight chance of showers and thunderstorms in the
afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.
Mostly smooth on the intracoastal waters. A slight chance of
showers and thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

AMZ570-201915-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
221 AM EDT Thu Aug 20 2026

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

Winds and seas higher in and near thunderstorms.

$$

AMZ572-201915-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
221 AM EDT Thu Aug 20 2026

.TODAY...Southwest winds around 5 knots, becoming south this
afternoon. Seas 2 feet. Wave Detail: East 2 feet at 9 seconds and
southeast 1 foot at 3 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas 2 feet. Wave Detail:
East 2 feet at 9 seconds and south 1 foot at 3 seconds.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 feet. Wave Detail: East 2 feet at 9 seconds and
north 1 foot at 3 seconds. A slight chance of showers and
thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 3 seconds and east 2 feet at
9 seconds. A chance of showers and thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 4 seconds and east 1 foot at 9 seconds. A slight chance
of showers and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 4 seconds and east 2 feet at
9 seconds. A chance of showers and thunderstorms in the evening,
then a slight chance of showers and thunderstorms after midnight.
.SUNDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet. A slight chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 feet. A slight
chance of showers and thunderstorms.
.MONDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 feet. A slight chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 2 feet. A slight
chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ575-201915-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
221 AM EDT Thu Aug 20 2026

.TODAY...South winds around 5 knots, becoming 5 to 10 knots late.
Seas 1 to 2 feet. Wave Detail: South 1 foot at 3 seconds and
north 1 foot at 5 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: North 1 foot at 3 seconds and south 1 foot at 3 seconds.
A slight chance of showers and thunderstorms after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave
Detail: South 1 foot at 3 seconds and north 1 foot at 4 seconds.
A slight chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 1 to 2 feet.
Wave Detail: South 2 feet at 3 seconds and north 1 foot at
3 seconds. A chance of showers. A chance of thunderstorms in the
evening, then a slight chance of thunderstorms after midnight.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 1 to 2 feet. Wave Detail: South 2 feet at
3 seconds and northwest 1 foot at 2 seconds.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 1 to 2 feet.
Wave Detail: South 2 feet at 3 seconds and east 1 foot at
9 seconds. A slight chance of showers and thunderstorms.
.SUNDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 1 to 2 feet.
.SUNDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 1 to 2 feet. A slight chance of
showers and thunderstorms.
.MONDAY...South winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 1 to 2 feet. A slight chance of showers and
thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$