430
FZUS52 KMLB 120744
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
344 AM EDT Tue May 12 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.

AMZ500-122015-
Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm
344 AM EDT Tue May 12 2026

.SYNOPSIS...A weak front pushes south across the waters today,
stalling near the Treasure Coast on Wednesday before dissipating.
High rain and lightning storm chances exist along and ahead of the
front, along with the potential for strong to severe storms.
Boating conditions deteriorate north of the Cape and in the Gulf
Stream as winds and seas build into tonight, with poor to
hazardous seas lingering into Wednesday. Drier and more favorable
boating conditions return late in the week as high pressure builds.

.GULF STREAM HAZARDS...Seas up to 6 feet this afternoon, north of
Cape Canaveral.

The approximate location of the west wall of the Gulf Stream based on
the Real Time Ocean Forecast System as of Tuesday, May 12th, 2026.

40 nautical miles east of Ponce Inlet.
30 nautical miles east of Port Canaveral.
26 nautical miles east of Sebastian Inlet.
17 nautical miles east of Fort Pierce Inlet.
11 nautical miles east of Saint Lucie Inlet.

$$

AMZ550-122015-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
344 AM EDT Tue May 12 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...Northeast winds 10 to 15 knots, becoming east 15 to
20 knots this afternoon. Seas 3 to 4 feet. Wave Detail: Northeast
4 feet at 6 seconds and east 1 foot at 11 seconds. Choppy on the
intracoastal waters. A chance of thunderstorms. A chance of
showers this morning, then showers this afternoon.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at
8 seconds and east 1 foot at 11 seconds. A light chop on the
intracoastal waters. A chance of thunderstorms. Showers likely in
the evening, then a chance of showers after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
9 seconds. A light chop on the intracoastal waters. A chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds around 5 knots, becoming west
after midnight. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet
at 8 seconds. Smooth on the intracoastal waters.
.THURSDAY...Northwest winds 5 to 10 knots, becoming northeast in
the afternoon. Seas 3 feet. Wave Detail: Northeast 3 feet at
8 seconds. A light chop on the intracoastal waters.
.THURSDAY NIGHT...East winds 5 to 10 knots, becoming north after
midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
7 seconds. Mostly smooth on the intracoastal waters.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 feet. A light chop on the intracoastal waters.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Mostly smooth on the intracoastal waters.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. A moderate chop on
the intracoastal waters.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 2 to 3 feet. A light chop on
the intracoastal waters.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-122015-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
344 AM EDT Tue May 12 2026

.TODAY...Northwest winds 5 to 10 knots, becoming northeast 10 to
15 knots late this morning and afternoon. Seas 2 feet, building
to 3 to 4 feet this afternoon. Wave Detail: East 2 feet at
10 seconds, becoming northeast 3 feet at 9 seconds and northeast
2 feet at 3 seconds this afternoon. A moderate chop on the
intracoastal waters. A chance of thunderstorms. A chance of
showers this morning, then showers this afternoon.
.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at
8 seconds and east 1 foot at 10 seconds. A light chop on the
intracoastal waters. A chance of thunderstorms. Showers in the
evening, then a chance of showers after midnight.
.WEDNESDAY...West winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at
9 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 west
after midnight. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet
at 8 seconds. Mostly smooth on the intracoastal waters. A slight
chance of showers and thunderstorms in the evening.
.THURSDAY...Northwest winds 5 to 10 knots, becoming northeast in
the afternoon. Seas 3 feet. Wave Detail: Northeast 3 feet at
8 seconds and northeast 1 foot at 14 seconds. A light chop on the
intracoastal waters.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 7 seconds and southeast 1 foot at 3 seconds.
Mostly smooth on the intracoastal waters.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 3 feet. A moderate chop on
the intracoastal waters.
.FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet. A light chop on the
intracoastal waters.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. A moderate chop on
the intracoastal waters.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 2 to 3 feet. A light chop on
the intracoastal waters.

Winds and waves higher in and near thunderstorms.

$$

AMZ555-122015-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
344 AM EDT Tue May 12 2026

.TODAY...Southwest winds 5 to 10 knots, becoming southeast late
this morning, becoming east 10 to 15 knots this afternoon. Seas
2 feet. Wave Detail: Southeast 2 feet at 3 seconds and east
1 foot at 10 seconds. A moderate chop on the intracoastal waters.
A slight chance of showers and thunderstorms this morning, then
showers with thunderstorms likely this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south 5 to
10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Northeast
3 feet at 9 seconds and southeast 2 feet at 4 seconds. A light
chop on the intracoastal waters. Showers with a chance of
thunderstorms in the evening, then a slight chance of showers and
thunderstorms after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 4 feet at 9 seconds and north 2 feet at
8 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...Southwest winds around 5 knots, becoming west
after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 4 feet at 8 seconds. Mostly smooth on the
intracoastal waters. A chance of showers with a slight chance of
thunderstorms in the evening.
.THURSDAY...Northwest winds 5 to 10 knots, becoming northeast in
the afternoon. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at
8 seconds and northeast 1 foot at 14 seconds. A light chop on the
intracoastal waters.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northwest after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 8 seconds and southeast 1 foot at 3 seconds.
Mostly smooth on the intracoastal waters.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 3 feet. A moderate chop on
the intracoastal waters.
.FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 2 to 3 feet. A light chop on the
intracoastal waters. A slight chance of showers after midnight.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. A moderate chop on
the intracoastal waters. A slight chance of showers. A slight
chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots 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.

$$

AMZ570-122015-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
344 AM EDT Tue May 12 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY MORNING...

.TODAY...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots this afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northeast 5 feet at 7 seconds and north
2 feet at 3 seconds. A chance of thunderstorms. Showers.
.TONIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 6 feet at
8 seconds and north 4 feet at 8 seconds. A chance of
thunderstorms. Showers likely in the evening, then a chance of
showers after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail:
Northeast 5 feet at 9 seconds and north 3 feet at 8 seconds. A
chance of showers. A chance of thunderstorms in the morning, then
a slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds around 5 knots, becoming west
after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 5 feet at 8 seconds and north 3 feet at
8 seconds. A slight chance of thunderstorms in the evening. A
slight chance of showers.
.THURSDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at
8 seconds and north 3 feet at 7 seconds. A slight chance of
showers in the morning.
.THURSDAY NIGHT...East winds around 5 knots, becoming north after
midnight. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at
8 seconds and north 2 feet at 7 seconds.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Seas 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ572-122015-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
344 AM EDT Tue May 12 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...Northwest winds around 10 knots, becoming northeast late
this morning and early afternoon, becoming east 15 to 20 knots
late. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at
9 seconds and south 2 feet at 3 seconds. A chance of
thunderstorms. A chance of showers this morning, then showers
likely this afternoon.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at
8 seconds and north 4 feet at 8 seconds. A chance of
thunderstorms. Showers likely in the evening, then a chance of
showers after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
North 4 feet at 8 seconds and northeast 4 feet at 8 seconds. A
chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...North winds around 5 knots, becoming west
after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 4 feet at 8 seconds and north 3 feet at
8 seconds. A slight chance of thunderstorms. A chance of showers
in the evening, then a slight chance of showers after midnight.
.THURSDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 4 feet at 8 seconds and north 3 feet at 8 seconds. A
slight chance of showers in the morning.
.THURSDAY NIGHT...East winds 5 to 10 knots, becoming northeast
after midnight. Seas 3 to 4 feet. Wave Detail: North 3 feet at
7 seconds and northeast 1 foot at 13 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 feet.
.SATURDAY...East winds 10 to 15 knots. Seas 3 feet.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ575-122015-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
344 AM EDT Tue May 12 2026

.TODAY...South winds around 10 knots, becoming southeast this
afternoon. Seas 2 feet. Wave Detail: South 2 feet at 4 seconds
and east 2 feet at 10 seconds. A chance of thunderstorms. A
chance of showers this morning, then showers likely this
afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet,
building to 3 to 5 feet, occasionally to 6 feet after midnight.
Wave Detail: Southeast 2 feet at 4 seconds and northeast 2 feet
at 9 seconds, becoming northeast 4 feet at 9 seconds and north
3 feet at 8 seconds after midnight. A chance of thunderstorms.
Showers likely in the evening, then a chance of showers after
midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at
8 seconds and northwest 3 feet at 8 seconds. A chance of showers
and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 4 feet at 8 seconds and north 3 feet at
8 seconds. A chance of showers and thunderstorms in the evening,
then a slight chance of showers and thunderstorms after midnight.
.THURSDAY...Northwest winds around 10 knots, becoming north in
the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave
Detail: Northeast 4 feet at 8 seconds and northwest 3 feet at
8 seconds. A slight chance of showers in the morning.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to
4 feet. Wave Detail: North 3 feet at 7 seconds and northeast
1 foot at 13 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 feet. A slight
chance of showers and thunderstorms after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 3 feet. A slight
chance of showers and thunderstorms in the morning.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 feet. A
slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$