Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 190020
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
820 PM AST Mon Mar 18 2024

Puerto Rico and the U.S. Virgin Islands Waters

Seas are provided as a range of the average height of the
highest 1/3 of the Seas...Along with the occasional height
of the average highest 10 percent of the Seas.

AMZ700-191315-
820 PM AST Mon Mar 18 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A broad surface high pressure moving into the central and eastern
Atlantic will continue to promote moderate to locally fresh trade
winds through mid-week, resulting in choppy seas. Winds will slow
down by Tuesday and Wednesday, resulting in subsiding seas and calm
conditions across the local waters.

$$

AMZ711-191315-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
820 PM AST Mon Mar 18 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 15 to 20 knots with gusts up to 25
knots, becoming southeast after midnight. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds. Isolated
showers.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.WEDNESDAY...Southeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated
showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 8 seconds. Isolated showers.
.SATURDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 7 seconds. Isolated showers.

$$

AMZ712-191315-
Coastal Waters of Northern Puerto Rico out 10 NM-
820 PM AST Mon Mar 18 2024

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4
feet with occasional seas around 5 feet. Dominant period 11
seconds.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas 1 to 3 feet. Dominant period 11 seconds.
Isolated showers.
.WEDNESDAY...Southeast winds 5 to 10 knots, becoming northeast in
the afternoon. Seas 1 to 3 feet. Dominant period 11 seconds.
Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 10 seconds. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 8 seconds. Scattered showers.
.SATURDAY...East winds 15 to 20 knots, becoming southeast. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 7
seconds. Isolated showers.

$$

AMZ716-191315-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
820 PM AST Mon Mar 18 2024

.REST OF TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
early this evening. Seas 2 to 4 feet with occasional seas around 5
feet. Dominant period 11 seconds. Isolated showers.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 10 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 10 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots, becoming northeast. Seas 2
to 4 feet with occasional seas around 5 feet. Dominant period 10
seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds,
subsiding to 8 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 7 seconds. Scattered
showers.

$$

AMZ723-191315-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
820 PM AST Mon Mar 18 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 15 to 20 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Isolated showers.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 6 seconds. Isolated
showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
showers.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots, becoming northeast. Seas 1
to 3 feet. Dominant period 11 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 10
seconds, decreasing to 7 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas
3 to 5 feet with occasional seas up to 6 feet. Dominant period 7
seconds. Scattered showers.

$$

AMZ726-191315-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
820 PM AST Mon Mar 18 2024

.REST OF TONIGHT...East winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 7 seconds. Isolated showers.
.TUESDAY...Southeast winds 10 to 15 knots. Gusts up to 25 knots in
the morning. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 10 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots, becoming northeast. Seas 1
to 3 feet. Dominant period 10 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds,
subsiding to 7 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers.

$$

AMZ733-191315-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
820 PM AST Mon Mar 18 2024

.REST OF TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
after midnight. Seas 2 to 4 feet with occasional seas around 5
feet. Dominant period 6 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Isolated
showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Isolated
showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated showers.
.THURSDAY...East winds 10 to 15 knots, becoming northeast with
gusts up to 25 knots. Seas 1 to 3 feet. Dominant period 7 seconds,
increasing to 10 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 7 seconds. Scattered showers.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots,
diminishing to east 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 6 seconds. Isolated
showers.

$$

AMZ735-191315-
Coastal Waters of Southern Puerto Rico out 10 NM-
820 PM AST Mon Mar 18 2024

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 6 seconds.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 2 to 4 feet with occasional seas around 5 feet. Dominant
period 7 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas
2 to 4 feet with occasional seas around 5 feet. Dominant period 6
seconds. Isolated showers.

$$

AMZ741-191315-
Mona Passage Southward to 17N-
820 PM AST Mon Mar 18 2024

.REST OF TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
after midnight. Seas 3 to 5 feet with occasional seas up to 6
feet. Dominant period 7 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Gusts up to 25 knots in
the morning. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 11 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3
feet. Dominant period 7 seconds.
.THURSDAY...Northeast winds 10 to 15 knots. Gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 10 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers.
.SATURDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas
3 to 5 feet with occasional seas up to 6 feet. Dominant period 6
seconds. Isolated showers.

$$

AMZ742-191315-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
820 PM AST Mon Mar 18 2024

.REST OF TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds.
.TUESDAY...East winds 10 to 15 knots, becoming south with gusts up
to 25 knots in the afternoon. Seas 2 to 4 feet with occasional
seas around 5 feet. Dominant period 11 seconds.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas 1 to 3 feet. Dominant period 11 seconds.
.WEDNESDAY...East winds 5 to 10 knots, becoming north in the
afternoon. Seas around 2 feet or less. Dominant period 10 seconds.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2
feet or less. Dominant period 10 seconds.
.THURSDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Isolated showers.
.FRIDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 8 seconds. Scattered showers.
.SATURDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers.

$$

AMZ745-191315-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
820 PM AST Mon Mar 18 2024

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 6 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 6 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds.
.WEDNESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet or less. Dominant period 7 seconds.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2
feet or less. Dominant period 6 seconds.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 8 seconds.
Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas
2 to 4 feet with occasional seas around 5 feet. Dominant period 7
seconds. Scattered showers.

$$


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