Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 170806
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
406 AM AST Wed Apr 17 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.

AMZ700-172115-
406 AM AST Wed Apr 17 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface ridge over the north-central Atlantic and broad surface
trough across the eastern Caribbean will generate moderate to locally
fresh east to northeasterly winds through tonight. An upper level
trough and induced surface trough will continue to promote inclement
weather across the local waters over the next few days, with squally
weather and thunderstorms possible at times. A northeasterly swell
is forecast to arrive by tomorrow.

$$

AMZ711-172115-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
406 AM AST Wed Apr 17 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.TODAY...East winds 10 to 15 knots, becoming northeast this
afternoon. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 9 seconds. Isolated thunderstorms this morning.
Numerous showers.
.TONIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds. Isolated
showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 11 seconds.
Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.

$$

AMZ712-172115-
Coastal Waters of Northern Puerto Rico out 10 NM-
406 AM AST Wed Apr 17 2024

.TODAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 9 seconds. Numerous
showers with isolated thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 9 seconds. Numerous
showers with isolated thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 11 seconds.
Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.SATURDAY...Northeast winds 10 to 15 knots, becoming east. Seas 2
to 4 feet with occasional seas around 5 feet. Dominant period 10
seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.

$$

AMZ716-172115-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
406 AM AST Wed Apr 17 2024

.TODAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 8 seconds. Numerous
showers with isolated thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.

$$

AMZ723-172115-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
406 AM AST Wed Apr 17 2024

.TODAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds,
subsiding to 7 seconds. Scattered showers.

$$

AMZ726-172115-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
406 AM AST Wed Apr 17 2024

.TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Numerous showers with isolated thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers.

$$

AMZ733-172115-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
406 AM AST Wed Apr 17 2024

.TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.SUNDAY...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, decreasing to 7 seconds. Scattered showers.

$$

AMZ735-172115-
Coastal Waters of Southern Puerto Rico out 10 NM-
406 AM AST Wed Apr 17 2024

.TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Isolated showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 7 seconds. Scattered showers.
.SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 7 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas 1
to 3 feet. Dominant period 6 seconds. Scattered showers.

$$

AMZ741-172115-
Mona Passage Southward to 17N-
406 AM AST Wed Apr 17 2024

.TODAY...East winds 10 to 15 knots, becoming northeast this
afternoon. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Isolated showers.
.TONIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.SUNDAY...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, decreasing to 7 seconds. Scattered showers.

$$

AMZ742-172115-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
406 AM AST Wed Apr 17 2024

.TODAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated thunderstorms this afternoon.
.TONIGHT...Northeast 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.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds,
subsiding to 7 seconds. Scattered showers.

$$

AMZ745-172115-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
406 AM AST Wed Apr 17 2024

.TODAY...East winds 10 to 15 knots, becoming north this afternoon.
Seas 1 to 3 feet. Dominant period 7 seconds. Isolated
thunderstorms this afternoon.
.TONIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Isolated showers.
.THURSDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas around 2 feet or less. Dominant period 6 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2
feet or less. Dominant period 6 seconds. Isolated showers.
.FRIDAY...North winds 10 to 15 knots, becoming northeast. Seas
around 2 feet or less. Dominant period 6 seconds. Scattered
showers.
.SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Scattered showers.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet or less.
Dominant period 6 seconds. Scattered showers.

$$


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