Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 211931
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
331 PM AST Thu Mar 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.

AMZ700-220830-
331 PM AST Thu Mar 21 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Gentle to moderate east-northeast winds will continue as a cold
front lingers north of the area tonight. A surface high pressure
building over the western Atlantic will yield moderate to locally
fresh easterly winds on Friday, and thus, causing deteriorating
marine conditions during the weekend. These winds will push
fragments of moisture over the local waters.

$$

AMZ711-220830-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
331 PM AST Thu Mar 21 2024

.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.
.FRIDAY...East winds 15 to 20 knots, increasing to east 15 to 20
knots with gusts up to 25 knots in the afternoon. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY NIGHT...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 7 seconds. Isolated showers.
.SATURDAY...East 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. Isolated showers.
.SATURDAY NIGHT...East winds 15 to 20 knots, becoming southeast
after midnight. Gusts up to 30 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 7 seconds. Isolated
showers.
.SUNDAY...Southeast winds 10 to 15 knots. Gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 7 seconds. Scattered showers. Isolated thunderstorms
through the night.
.MONDAY...South winds 10 to 15 knots, becoming northwest. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 8
seconds. Numerous showers with isolated thunderstorms.
.TUESDAY...Northwest winds 10 to 15 knots, becoming north. Seas 6
to 8 feet with occasional seas up to 10 feet. Dominant period 12
seconds. Isolated showers.

$$

AMZ712-220830-
Coastal Waters of Northern Puerto Rico out 10 NM-
331 PM AST Thu Mar 21 2024

.TONIGHT...Northeast winds 5 to 10 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, increasing to east 15 to 20
knots with gusts up to 25 knots in the afternoon. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY NIGHT...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 15 to 20 knots. Gusts up to 30 knots. Seas
4 to 6 feet with occasional seas up to 8 feet. Dominant period 6
seconds. Isolated showers.
.SATURDAY NIGHT...East winds 10 to 15 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 7 seconds. Isolated
showers.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers. Isolated thunderstorms through the night.
.MONDAY...South winds 5 to 10 knots, becoming northwest. Seas 2 to
4 feet with occasional seas around 5 feet. Dominant period 8
seconds. Numerous showers with isolated thunderstorms.
.TUESDAY...Northwest winds 5 to 10 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 12 seconds. Isolated
showers.

$$

AMZ716-220830-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
331 PM AST Thu Mar 21 2024

.TONIGHT...Northeast winds 10 to 15 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 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.FRIDAY NIGHT...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 8 seconds. Scattered showers.
.SATURDAY...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.
.SATURDAY NIGHT...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.
.SUNDAY...Southeast winds 15 to 20 knots with gusts up to 25
knots, diminishing to southeast 15 to 20 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 7 seconds.
Scattered showers. Isolated thunderstorms through the night.
.MONDAY...South winds 5 to 10 knots, becoming southwest. Seas 2 to
4 feet with occasional seas around 5 feet. Dominant period 8
seconds. Scattered showers with isolated thunderstorms.
.TUESDAY...Northwest winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds,
increasing to 12 seconds. Scattered showers.

$$

AMZ723-220830-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
331 PM AST Thu Mar 21 2024

.TONIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.FRIDAY NIGHT...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.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 6 seconds. Isolated showers.
.SATURDAY NIGHT...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. Isolated showers.
.SUNDAY...Southeast 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. Isolated showers.
.MONDAY...Southeast winds 5 to 10 knots, becoming south. Seas 2 to
4 feet with occasional seas around 5 feet. Dominant period 8
seconds. Scattered showers with isolated thunderstorms.
.TUESDAY...West winds 10 to 15 knots, becoming northwest. Seas 2
to 4 feet with occasional seas around 5 feet. Dominant period 8
seconds, increasing to 11 seconds. Scattered showers.

$$

AMZ726-220830-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
331 PM AST Thu Mar 21 2024

.TONIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3 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 10 seconds.
Isolated showers.
.FRIDAY NIGHT...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. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 6 seconds. Isolated
showers.
.SATURDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 6 seconds. Isolated
showers.
.SUNDAY...Southeast winds 15 to 20 knots with gusts up to 25
knots, diminishing to southeast 15 to 20 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 7 seconds.
Scattered showers. Isolated thunderstorms through the night.
.MONDAY...South winds 5 to 10 knots, becoming west. Seas 1 to 3
feet. Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.TUESDAY...Northwest winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 7 seconds, increasing to 11 seconds. Scattered
showers.

$$

AMZ733-220830-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
331 PM AST Thu Mar 21 2024

.TONIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.FRIDAY...East 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. Isolated showers.
.FRIDAY NIGHT...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.
.SATURDAY...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. Isolated showers.
.SATURDAY NIGHT...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 6 seconds. Isolated showers.
.SUNDAY...Southeast winds 10 to 15 knots with gusts up to 25
knots, diminishing to southeast 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 7 seconds.
Isolated showers. Isolated thunderstorms through the night.
.MONDAY...South winds 5 to 10 knots, becoming northwest. Seas 2 to
4 feet with occasional seas around 5 feet. Dominant period 7
seconds. Scattered showers with isolated thunderstorms.
.TUESDAY...Northwest winds 10 to 15 knots, becoming north. Seas 1
to 3 feet. Dominant period 7 seconds. Scattered showers.

$$

AMZ735-220830-
Coastal Waters of Southern Puerto Rico out 10 NM-
331 PM AST Thu Mar 21 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
afternoon. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated
showers.
.FRIDAY NIGHT...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. Isolated showers.
.SATURDAY...East winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Isolated
showers.
.SATURDAY NIGHT...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. Isolated showers.
.SUNDAY...Southeast winds 10 to 15 knots with gusts up to 25
knots, diminishing to southeast 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 6 seconds.
Scattered showers. Isolated thunderstorms through the night.
.MONDAY...South winds 5 to 10 knots, becoming northwest. Seas 1 to
3 feet. Dominant period 6 seconds. Isolated thunderstorms through
the day. Scattered showers.
.TUESDAY...Northwest winds 5 to 10 knots with gusts up to 25
knots. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered
showers.

$$

AMZ741-220830-
Mona Passage Southward to 17N-
331 PM AST Thu Mar 21 2024

.TONIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.FRIDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Scattered showers.
.FRIDAY NIGHT...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 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 6 seconds. Isolated
showers.
.SATURDAY NIGHT...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 6 seconds. Isolated showers.
.SUNDAY...Southeast 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. Isolated showers.
.MONDAY...South winds 10 to 15 knots, becoming northwest. Seas 2
to 4 feet with occasional seas around 5 feet. Dominant period 7
seconds. Scattered showers with isolated thunderstorms.
.TUESDAY...North 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, increasing to 12 seconds. Isolated showers.

$$

AMZ742-220830-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
331 PM AST Thu Mar 21 2024

.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.
.FRIDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Numerous showers.
.FRIDAY NIGHT...East winds 10 to 15 knots. Gusts up to 25 knots in
the evening. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 8 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 7 seconds.
Isolated showers.
.SUNDAY...Southeast 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 7 seconds. Isolated showers.
.MONDAY...South winds 5 to 10 knots, becoming northwest. Seas 2 to
4 feet with occasional seas around 5 feet. Dominant period 7
seconds. Scattered showers with isolated thunderstorms.
.TUESDAY...North 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, increasing to 12 seconds. Isolated showers.

$$

AMZ745-220830-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
331 PM AST Thu Mar 21 2024

.TONIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Numerous showers.
.FRIDAY NIGHT...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 15 to 20 knots, becoming southeast with
gusts up to 25 knots in the afternoon. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
showers.
.SATURDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
showers.
.SUNDAY...Southeast winds 10 to 15 knots with gusts up to 25
knots, diminishing to southeast 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 6 seconds.
Isolated showers.
.MONDAY...South winds 5 to 10 knots, becoming northwest. Seas
around 2 feet or less. Dominant period 7 seconds. Scattered
showers with isolated thunderstorms.
.TUESDAY...North winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds,
increasing to 10 seconds. Isolated showers.

$$


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