Coastal Waters Forecast
Issued by NWS San Juan, PR

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013
FZCA52 TJSJ 271424
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
1024 AM AST Sat Apr 27 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.

AMZ700-280315-
1024 AM AST Sat Apr 27 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A small northwesterly swell will continue to spread across the local
waters today into the rest of the weekend. Showers and thunderstorms
will continue to affect the local waters for the next several days
as lingering moisture from a surface trough/old frontal boundary
remains over the local area. Winds will prevail from the east and
becoming northeast today under the influence of a surface high
pressure moving off the eastern coast of the United States. A
northerly swell is anticipated to spread across the local waters
early next week deteriorating coastal and marine conditions.

$$

AMZ711-280315-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 10 to 15 knots. Gusts up to 25 knots this
afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Scattered showers.
.TONIGHT...Northeast 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 10 seconds. Scattered showers. Isolated
thunderstorms after midnight.
.SUNDAY...Northeast 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 10 seconds. Scattered showers with isolated
thunderstorms.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 8 seconds. Isolated showers.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 8 seconds, increasing to 10 seconds. Isolated
showers.
.TUESDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 10 seconds. Scattered showers. Isolated
thunderstorms through the night.
.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds. Numerous
showers with isolated thunderstorms.

$$

AMZ712-280315-
Coastal Waters of Northern Puerto Rico out 10 NM-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 10 to 15 knots. Gusts up to 25 knots this
afternoon. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Numerous showers.
.TONIGHT...Northeast 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 10 seconds. Scattered showers with isolated
thunderstorms.
.SUNDAY...Northeast 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 10 seconds. Scattered showers with isolated
thunderstorms.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 10 seconds.
Numerous showers.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 25
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 8 seconds. Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots, becoming east. Seas 5
to 7 feet with occasional seas up to 9 feet. Dominant period 9
seconds, increasing to 10 seconds. Numerous showers with isolated
thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas
4 to 6 feet with occasional seas up to 8 feet. Dominant period 10
seconds. Numerous showers with isolated thunderstorms.

$$

AMZ716-280315-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.TONIGHT...Northeast 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 10 seconds. Scattered showers. Isolated
thunderstorms after midnight.
.SUNDAY...Northeast winds 10 to 15 knots. Gusts up to 25 knots in
the afternoon. Seas 2 to 4 feet with occasional seas around 5
feet. Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.SUNDAY NIGHT...Northeast 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 7 seconds. Scattered showers.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 8 seconds. Isolated showers.
.TUESDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.WEDNESDAY...East winds 15 to 20 knots with gusts up to 25 knots,
diminishing to east 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds. Numerous
showers with isolated thunderstorms.

$$

AMZ723-280315-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.TONIGHT...Northeast 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 10 seconds. Scattered showers. Isolated
thunderstorms after midnight.
.SUNDAY...Northeast winds 10 to 15 knots. Gusts up to 25 knots in
the afternoon. Seas 2 to 4 feet with occasional seas around 5
feet. Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.SUNDAY NIGHT...Northeast 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.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 7 seconds. Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 10 seconds. Scattered showers. Isolated
thunderstorms through the night.
.WEDNESDAY...East winds 15 to 20 knots with gusts up to 25 knots,
diminishing to east 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms through the night.

$$

AMZ726-280315-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Numerous showers. Isolated thunderstorms this afternoon.
.TONIGHT...Northeast winds 15 to 20 knots, increasing to northeast
15 to 20 knots with gusts up to 25 knots after midnight. Seas 2 to
4 feet with occasional seas around 5 feet. Dominant period 7
seconds. Scattered showers with isolated thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Gusts up to 25 knots in
the afternoon. Seas 2 to 4 feet with occasional seas around 5
feet. Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.SUNDAY NIGHT...Northeast 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.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 7 seconds. Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 7 seconds. Numerous showers with isolated
thunderstorms.
.WEDNESDAY...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. Numerous showers with isolated thunderstorms.

$$

AMZ733-280315-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
Scattered showers. Isolated thunderstorms this afternoon.
.TONIGHT...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms after midnight.
.SUNDAY...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. Scattered showers. Isolated
thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast 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.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 6 seconds. Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 6 seconds. Scattered showers. Isolated
thunderstorms through the night.
.WEDNESDAY...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 with isolated thunderstorms.

$$

AMZ735-280315-
Coastal Waters of Southern Puerto Rico out 10 NM-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Scattered showers. Isolated thunderstorms this
afternoon.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Isolated showers and thunderstorms.
.SUNDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
afternoon. Seas 1 to 3 feet. Dominant period 6 seconds. Numerous
showers. Isolated thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Scattered showers.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to 30
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 6 seconds. Isolated thunderstorms through the day.
Scattered showers.
.TUESDAY...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 6 seconds. Scattered showers with isolated
thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
Scattered showers with isolated thunderstorms.

$$

AMZ741-280315-
Mona Passage Southward to 17N-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 10 to 15 knots. Gusts up to 25 knots this
afternoon. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Scattered showers. Isolated
thunderstorms this afternoon.
.TONIGHT...Northeast 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 with isolated
thunderstorms.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Isolated
showers.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 7 seconds. Scattered showers.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 7 seconds. Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 8 seconds, increasing to 10 seconds. Isolated
showers.
.WEDNESDAY...East winds 15 to 20 knots with gusts up to 25 knots,
diminishing to east 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. Numerous
showers with isolated thunderstorms.

$$

AMZ742-280315-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
1024 AM AST Sat Apr 27 2024

.TODAY...Northeast winds 10 to 15 knots. Gusts up to 25 knots this
afternoon. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Scattered showers. Isolated
thunderstorms this afternoon.
.TONIGHT...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 8 seconds. Isolated showers.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Isolated
showers.
.SUNDAY NIGHT...Northeast 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 7 seconds. Isolated showers.
.MONDAY...Northeast 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.
.TUESDAY...Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots, diminishing to northeast 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 10 seconds.
Numerous showers with isolated thunderstorms.

$$

AMZ745-280315-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
1024 AM AST Sat Apr 27 2024

.TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Isolated thunderstorms this afternoon.
.TONIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 8 seconds. Isolated showers.
.SUNDAY...Northeast winds 10 to 15 knots, becoming east in the
afternoon. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated
thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Gusts up to 25
knots in the evening. Seas 2 to 4 feet with occasional seas around
5 feet. Dominant period 7 seconds. Isolated showers.
.MONDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 8 seconds. Isolated
thunderstorms through the day. Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots, increasing to northeast
15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 9 seconds. Isolated
showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers with isolated thunderstorms.

$$