Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 181359
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
959 AM AST Thu Apr 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.

AMZ700-190215-
959 AM AST Thu Apr 18 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A set of surface troughs, one to the northwest and other to the
northeast of the islands will promote light to locally moderate
northeast winds today. A small northeasterly swell will move across
the Atlantic waters from today onward. The surface trough northeast
of the region and a surface high pressure building across the western
Atlantic will promote moderate to locally fresh trades by the
weekend.

$$

AMZ711-190215-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 11 seconds.
Isolated showers.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.SUNDAY...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 10 seconds, decreasing to 7 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,
increasing to 10 seconds. Scattered showers.

$$

AMZ712-190215-
Coastal Waters of Northern Puerto Rico out 10 NM-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 11 seconds.
Isolated showers.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 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 11 seconds.
Scattered showers.
.FRIDAY NIGHT...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 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 with gusts up to 25 knots.
Seas 2 to 4 feet with occasional seas around 5 feet. Dominant
period 10 seconds, decreasing to 7 seconds. Numerous showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds,
increasing to 10 seconds. Isolated thunderstorms through the day.
Numerous showers.

$$

AMZ716-190215-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 12 seconds.
Isolated showers.
.TONIGHT...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 11 seconds.
Numerous showers.
.FRIDAY NIGHT...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 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.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
thunderstorms through the day. Numerous showers.

$$

AMZ723-190215-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 12 seconds.
Isolated showers.
.TONIGHT...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 11 seconds.
Scattered showers.
.FRIDAY NIGHT...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 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.
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.

$$

AMZ726-190215-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Isolated showers.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds, subsiding to 6 seconds. Scattered
showers.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.

$$

AMZ733-190215-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
959 AM AST Thu Apr 18 2024

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

$$

AMZ735-190215-
Coastal Waters of Southern Puerto Rico out 10 NM-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated showers.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet or less. Dominant period 7 seconds.
Isolated showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet
or less. Dominant period 7 seconds. Isolated showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 1 to 3 feet. Dominant period 6 seconds. Isolated showers.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Isolated showers.

$$

AMZ741-190215-
Mona Passage Southward to 17N-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...Northeast winds 5 to 10 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. 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.
Scattered showers.
.FRIDAY 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 11 seconds. Scattered showers.
.SATURDAY...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.
.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 6 seconds. Isolated 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.

$$

AMZ742-190215-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
.TONIGHT...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, becoming north in the
afternoon. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 11 seconds. Isolated showers.
.FRIDAY NIGHT...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. Gusts up to 25 knots.
Seas 2 to 4 feet with occasional seas around 5 feet. Dominant
period 10 seconds. Scattered showers.
.SUNDAY...Northeast 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, subsiding to 6 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Numerous
showers with isolated thunderstorms.

$$

AMZ745-190215-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
959 AM AST Thu Apr 18 2024

.REST OF TODAY...North winds 10 to 15 knots. Seas around 2 feet or
less. Dominant period 6 seconds.
.TONIGHT...Northeast winds 10 to 15 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Scattered showers.
.FRIDAY...Northeast winds 10 to 15 knots, becoming north in the
afternoon. Seas around 2 feet or less. Dominant period 6 seconds.
Scattered showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 25
knots, diminishing to northeast 10 to 15 knots after midnight.
Seas 1 to 3 feet. Dominant period 6 seconds. Isolated 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.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet or less.
Dominant period 7 seconds. Isolated showers.

$$


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