Coastal Waters Forecast
Issued by NWS Melbourne, FL

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FZUS52 KMLB 210819
CWFMLB

Coastal Waters Forecast for East Central Florida
National Weather Service Melbourne FL
419 AM EDT Sun Apr 21 2024

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.

AMZ500-212130-
Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm-
419 AM EDT Sun Apr 21 2024

.SYNOPSIS...The Atlantic high pressure ridge axis will remain
across south Florida today. Poor boating conditions are expected
to develop over the Treasure Coast waters and over the offshore
waters of Brevard County this afternoon and through the evening,
as southerly winds increase ahead of a weak cool front which will
cross the waters early Monday. Boating conditions will further
deteriorate behind the front, with isolated strong lightning
storms Monday afternoon, and building seas Monday evening.
Conditions improve by Wednesday as high pressure builds in behind.

.GULF STREAM HAZARDS...Southerly winds increasing to 15 to 20
knots, south of the Cape from this afternoon and into this evening.

The approximate location of the west wall of the Gulf Stream based
on the Real Time Ocean Forecast System as of Saturday, April 20th.

39 nautical miles east of Ponce Inlet.
30 nautical miles east of Port Canaveral.
24 nautical miles east of Sebastian Inlet.
16 nautical miles east of Fort Pierce Inlet.
11 nautical miles east of Saint Lucie Inlet.


$$

AMZ550-212130-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
419 AM EDT Sun Apr 21 2024

.TODAY...Southwest winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. A dominant period
10 seconds. A moderate chop on the intracoastal waters.
.TONIGHT...West winds 10 knots, becoming northwest after
midnight. Seas 2 to 3 feet. A dominant period 9 seconds. A light
chop on the intracoastal waters. A slight chance of showers in
the evening. A slight chance of thunderstorms. A chance of
showers after midnight.
.MONDAY...North winds 10 to 15 knots, increasing to 20 to
25 knots in the afternoon. Seas 2 to 3 feet, building to 4 to
6 feet with occasional seas to 7 feet in the afternoon. A
dominant period 5 seconds. Rough on the intracoastal waters. A
chance of showers and a slight chance of thunderstorms.
.MONDAY NIGHT...North winds 20 to 25 knots, becoming northeast
15 to 20 knots after midnight. Seas 5 to 7 feet with occasional
seas to 9 feet. Rough on the intracoastal waters. A slight chance
of showers and thunderstorms in the evening.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas to 7 feet. A moderate chop on the intracoastal
waters.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet with
occasional seas to 5 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet with
occasional seas to 5 feet.
.WEDNESDAY NIGHT...Southeast winds 10 knots, becoming south after
midnight. Seas 2 to 3 feet.
.THURSDAY...Northwest winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

AMZ552-212130-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
419 AM EDT Sun Apr 21 2024

.TODAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 2 to 3 feet. A dominant period
10 seconds. A moderate chop on the intracoastal waters. A slight
chance of showers and thunderstorms in the afternoon.
.TONIGHT...Southwest winds 10 to 15 knots, becoming northwest
after midnight. Seas 2 to 3 feet. A dominant period 9 seconds. A
light chop on the intracoastal waters. A chance of showers and a
slight chance of thunderstorms after midnight.
.MONDAY...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots in the afternoon. Seas 3 to 4 feet with occasional seas
to 5 feet. A dominant period 9 seconds. Choppy on the
intracoastal waters. A chance of showers and a slight chance of
thunderstorms.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas to 9 feet. Choppy on the intracoastal waters. A
slight chance of showers and thunderstorms in the evening.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas to 7 feet. A moderate chop on the intracoastal
waters.
.TUESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 4 feet with occasional seas to
5 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet with
occasional seas to 5 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet.
.THURSDAY...Southeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. Seas 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

AMZ555-212130-
Sebastian Inlet to Jupiter Inlet 0-20 nm-
419 AM EDT Sun Apr 21 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION THIS AFTERNOON...

.TODAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the late morning and increasing to 15 to 20 knots into
the afternoon. Seas 3 to 4 feet with occasional seas to 5 feet. A
dominant period 10 seconds. A moderate chop on the intracoastal
waters. A slight chance of showers and thunderstorms in the
afternoon.
.TONIGHT...Southwest winds 10 to 15 knots, becoming west 5 to
10 knots after midnight. Seas 2 to 3 feet. A dominant period
9 seconds. A light chop on the intracoastal waters. A slight
chance of showers and thunderstorms after midnight.
.MONDAY...West winds 5 to 10 knots, becoming northwest 15 to
20 knots in the afternoon. Seas 2 to 3 feet. A dominant period
9 seconds. Choppy on the intracoastal waters. A chance of showers
and a slight chance of thunderstorms.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas to 7 feet. Choppy on the intracoastal waters. A
slight chance of showers and thunderstorms in the evening.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas to 9 feet. A moderate chop on the intracoastal
waters.
.TUESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 4 to 6 feet with occasional seas to
7 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet with
occasional seas to 5 feet.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet
with occasional seas to 5 feet.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

AMZ570-212130-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
419 AM EDT Sun Apr 21 2024

.TODAY...Southwest winds 10 to 15 knots, becoming south late.
Seas 2 to 3 feet. A dominant period 9 seconds. A slight chance of
showers and thunderstorms in the afternoon.
.TONIGHT...West winds 10 to 15 knots, becoming northwest after
midnight. Seas 3 to 4 feet with occasional seas to 5 feet. A
dominant period 9 seconds. A chance of showers and a slight
chance of thunderstorms.
.MONDAY...Northwest winds 10 to 15 knots, becoming north 15 to
20 knots in the afternoon. Seas 3 to 4 feet with occasional seas
to 5 feet, building to 5 to 7 feet with occasional seas to 9 feet
in the afternoon. A dominant period 6 seconds. A chance of
showers and a slight chance of thunderstorms.
.MONDAY NIGHT...North winds 20 to 25 knots, becoming northeast
15 to 20 knots after midnight. Seas 7 to 9 feet with occasional
seas to 11 feet. A chance of showers in the evening. A slight
chance of thunderstorms. A slight chance of showers after
midnight.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 6 to 8 feet with
occasional seas to 10 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas to 6 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 4 feet with
occasional seas to 5 feet.
.WEDNESDAY NIGHT...Southeast winds 10 knots, becoming south after
midnight. Seas 3 to 4 feet with occasional seas to 5 feet.
.THURSDAY...Southwest winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ572-212130-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm-
419 AM EDT Sun Apr 21 2024

.TODAY...Southwest winds 10 to 15 knots, becoming south late.
Seas 3 to 4 feet with occasional seas to 5 feet. A dominant
period 10 seconds. A slight chance of showers and thunderstorms
in the afternoon.
.TONIGHT...Southwest winds 15 to 20 knots, becoming northwest
10 to 15 knots after midnight. Seas 3 to 4 feet with occasional
seas to 5 feet. A dominant period 9 seconds. A slight chance of
showers in the evening. A slight chance of thunderstorms. A
chance of showers after midnight.
.MONDAY...Northwest winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 3 to 5 feet with occasional seas
to 6 feet. A dominant period 6 seconds. A chance of showers and a
slight chance of thunderstorms.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 7 to 9 feet with
occasional seas to 11 feet. A chance of showers and a slight
chance of thunderstorms.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 6 to 8 feet with
occasional seas to 10 feet. A slight chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas to 7 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas to 6 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to
4 feet with occasional seas to 5 feet.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 4 feet with
occasional seas to 5 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ575-212130-
Sebastian Inlet to Jupiter Inlet 20-60 nm-
419 AM EDT Sun Apr 21 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION THIS AFTERNOON...

.TODAY...South winds 10 to 15 knots increasing to 15 to 20 knots
in the afternoon. Seas 3 to 4 feet with occasional seas to 5 feet.
A dominant period 10 seconds. A slight chance of showers and
thunderstorms in the afternoon.
.TONIGHT...Southwest winds 15 to 20 knots, becoming west 10 to
15 knots after midnight. Seas 3 to 4 feet with occasional seas to
5 feet. A dominant period 9 seconds. A slight chance of showers
and thunderstorms.
.MONDAY...West winds 10 to 15 knots, becoming northwest in the
afternoon. Seas 3 to 4 feet with occasional seas to 5 feet. A
dominant period 8 seconds. A chance of showers and a slight
chance of thunderstorms.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas to 7 feet, building to 6 to 8 feet with
occasional seas to 10 feet after midnight. A chance of showers
and a slight chance of thunderstorms.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 7 to 9 feet with
occasional seas to 11 feet. A slight chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas to 9 feet.
.WEDNESDAY...East winds 10 knots. Seas 3 to 5 feet with
occasional seas to 6 feet.
.WEDNESDAY NIGHT...East winds 10 knots. Seas 3 to 4 feet with
occasional seas to 5 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet with
occasional seas to 5 feet.

Winds and seas higher in and near thunderstorms.

$$


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