Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 211951
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
351 PM AST Sun Apr 21 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.

AMZ700-220815-
351 PM AST Sun Apr 21 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface high pressure north of the area will continue to yield a
moderate northeasterly wind flow through at least Monday. Winds are
expected to become from the east southeast on Tuesday as a surface
trough prevails across the northeast Caribbean. Showers and isolated
thunderstorms will continue to affect the local waters from time to
time.

$$

AMZ711-220815-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
351 PM AST Sun Apr 21 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.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 6 seconds. Scattered showers with isolated thunderstorms.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Isolated
thunderstorms in the morning. Numerous showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds,
increasing to 10 seconds. Scattered showers.
.THURSDAY...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 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.
Scattered showers.

$$

AMZ712-220815-
Coastal Waters of Northern Puerto Rico out 10 NM-
351 PM AST Sun Apr 21 2024

.TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots this
evening. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 6 seconds. Numerous showers with isolated
thunderstorms.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Numerous
showers with isolated thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Isolated thunderstorms in the evening. Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Numerous showers. Isolated thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 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 8 seconds,
increasing to 11 seconds. Scattered showers.
.THURSDAY...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 10 seconds. Isolated thunderstorms through the day.
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.
Scattered showers.

$$

AMZ716-220815-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
351 PM AST Sun Apr 21 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TONIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 6 seconds. Numerous
showers with isolated thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Numerous
showers with isolated thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated thunderstorms in the evening. Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers.
.TUESDAY NIGHT...East winds around 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY...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.
.THURSDAY...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 11
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. Numerous
showers.

$$

AMZ723-220815-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
351 PM AST Sun Apr 21 2024

.TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots this
evening. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 6 seconds. Numerous showers with isolated
thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Numerous
showers with isolated thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated thunderstorms in the evening. Scattered showers.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.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.
.THURSDAY...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. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Numerous
showers.

$$

AMZ726-220815-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
351 PM AST Sun Apr 21 2024

.TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots this
evening. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 6 seconds. Numerous showers with isolated
thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Numerous
showers with isolated thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated thunderstorms in the evening.
Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots, increasing to east 10 to
15 knots with gusts up to 25 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Gusts up to 25 knots. 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 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.

$$

AMZ733-220815-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
351 PM AST Sun Apr 21 2024

.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 6 seconds. Numerous showers with isolated thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Numerous showers with isolated
thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Isolated thunderstorms in the evening.
Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Numerous showers with isolated
thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.THURSDAY...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. Scattered showers.
.FRIDAY...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. Isolated showers.

$$

AMZ735-220815-
Coastal Waters of Southern Puerto Rico out 10 NM-
351 PM AST Sun Apr 21 2024

.TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots this
evening. Seas 1 to 3 feet. Dominant period 6 seconds. Numerous
showers. Isolated thunderstorms after midnight.
.MONDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Numerous showers with isolated thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Isolated thunderstorms in the
evening. Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Isolated showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Numerous showers with isolated
thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.THURSDAY...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 thunderstorms through the day.
Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated showers.

$$

AMZ741-220815-
Mona Passage Southward to 17N-
351 PM AST Sun Apr 21 2024

.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 6 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
Scattered showers.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers.
.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Isolated showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Numerous
showers with isolated thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
thunderstorms through the day. Numerous showers.

$$

AMZ742-220815-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
351 PM AST Sun Apr 21 2024

.TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots this
evening. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 6 seconds. Isolated showers.
.MONDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Isolated
thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.TUESDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 1 to 3 feet. Dominant period 10 seconds. Scattered
showers. Isolated thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY...Northeast winds 10 to 15 knots, becoming east. Seas 1
to 3 feet. Dominant period 11 seconds. Isolated thunderstorms
through the day. Scattered showers.
.THURSDAY...East winds 10 to 15 knots, increasing to east 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. Numerous showers
with isolated thunderstorms.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
thunderstorms through the day. Numerous showers.

$$

AMZ745-220815-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
351 PM AST Sun Apr 21 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Scattered showers.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Isolated showers.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 10 seconds. Isolated showers.
.TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 10 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 7 seconds. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet or less.
Dominant period 7 seconds, increasing to 11 seconds. Scattered
showers.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Numerous showers with isolated thunderstorms.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated thunderstorms through the day. Numerous showers.

$$


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