Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 251429
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
1029 AM AST Mon Mar 25 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.

AMZ700-260315-
1029 AM AST Mon Mar 25 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
An active cold front is moving toward the local area and will spread
through the rest of the day and tonight with increasing showers and
active thunderstorms over the local waters. The cold front passage
will bring clearing and moderate northerly winds. The low pressure
associated with the front is generating northerly swell that will
move into the local area Tuesday afternoon and produce hazardous
seas in the Atlantic waters and the Caribbean passages. Seas will
remain hazardous through at least Thursday.

$$

AMZ711-260315-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 8 seconds. Showers
with isolated thunderstorms.
.TONIGHT...West winds 10 to 15 knots, becoming northwest after
midnight. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 8 seconds. Numerous showers with isolated
thunderstorms.
.TUESDAY...North winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 11 seconds. Isolated
showers.
.TUESDAY NIGHT...North winds 10 to 15 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant period 12 seconds.
.WEDNESDAY...Northwest winds 10 to 15 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant period 13 seconds.
.THURSDAY...Northwest winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 11 seconds. Isolated
showers.
.FRIDAY...Northwest winds 10 to 15 knots, becoming north. Seas 4
to 6 feet with occasional seas up to 8 feet. Dominant period 10
seconds. Isolated showers.

$$

AMZ712-260315-
Coastal Waters of Northern Puerto Rico out 10 NM-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...Northeast winds 5 to 10 knots, becoming north
this afternoon. Seas 2 to 4 feet with occasional seas around 5
feet. Dominant period 8 seconds. Showers with isolated
thunderstorms.
.TONIGHT...Northwest 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.
.TUESDAY...North winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds.
Scattered showers.
.TUESDAY NIGHT...North winds 5 to 10 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 12 seconds.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant period 13 seconds.
.THURSDAY...Northwest winds 5 to 10 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 11 seconds. Isolated
showers.
.FRIDAY...Northwest winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. Isolated
showers.

$$

AMZ716-260315-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...South winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 8 seconds. Numerous showers with isolated
thunderstorms.
.TONIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Seas 1 to 3 feet. Dominant period 8 seconds. Numerous
showers with isolated thunderstorms.
.TUESDAY...Northwest winds 10 to 15 knots, becoming north in the
afternoon. Seas 1 to 3 feet. Dominant period 8 seconds. Isolated
thunderstorms in the morning. Numerous showers.
.TUESDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet, building to 4 to 6 feet with
occasional seas up to 8 feet after midnight. Dominant period 11
seconds. Isolated showers.
.WEDNESDAY...Northwest winds 10 to 15 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant period 13 seconds.
.THURSDAY...Northwest winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 11 seconds. Isolated
showers.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds,
subsiding to 9 seconds. Isolated showers.

$$

AMZ723-260315-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 8 seconds.
Isolated showers.
.TONIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 8 seconds. Scattered showers with isolated
thunderstorms.
.TUESDAY...West winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 to 3 feet. Dominant period 8 seconds. Isolated
thunderstorms in the morning. Numerous showers.
.TUESDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.WEDNESDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 12 seconds. Isolated
showers.
.THURSDAY...West winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds. Isolated
showers.
.FRIDAY...West winds 10 to 15 knots, becoming northwest. Seas 3 to
5 feet with occasional seas up to 6 feet. Dominant period 10
seconds. Isolated showers.

$$

AMZ726-260315-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...South winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers. Isolated
thunderstorms this afternoon.
.TONIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Seas 1 to 3 feet. Dominant period 7 seconds. Numerous
showers with isolated thunderstorms.
.TUESDAY...Northwest winds 10 to 15 knots, becoming north in the
afternoon. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated
thunderstorms in the morning. Numerous showers.
.TUESDAY NIGHT...North winds 10 to 15 knots. Gusts up to 25 knots
after midnight. Seas 1 to 3 feet. Dominant period 11 seconds.
Isolated showers.
.WEDNESDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 12 seconds. Isolated
showers.
.THURSDAY...West winds 10 to 15 knots, becoming northwest. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 11
seconds. Isolated showers.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.

$$

AMZ733-260315-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...South winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers.
.TONIGHT...Southwest winds 5 to 10 knots, becoming northwest after
midnight. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered
showers with isolated thunderstorms.
.TUESDAY...Northwest winds 5 to 10 knots, increasing to northwest
5 to 10 knots with gusts up to 25 knots in the afternoon. Seas 1
to 3 feet. Dominant period 7 seconds. Isolated thunderstorms in
the morning. Scattered showers.
.TUESDAY NIGHT...North winds 10 to 15 knots with gusts up to 25
knots. Seas 1 to 3 feet. Dominant period 11 seconds. Isolated
showers.
.WEDNESDAY...North winds 10 to 15 knots. Gusts up to 25 knots.
Seas 2 to 4 feet with occasional seas around 5 feet. Dominant
period 11 seconds. Isolated showers.
.THURSDAY...West winds 10 to 15 knots, becoming northwest with
gusts up to 25 knots. Seas 2 to 4 feet with occasional seas around
5 feet. Dominant period 11 seconds. Isolated showers.
.FRIDAY...Northwest winds 10 to 15 knots, becoming north with
gusts up to 25 knots. Seas 1 to 3 feet. Dominant period 10
seconds. Isolated showers.

$$

AMZ735-260315-
Coastal Waters of Southern Puerto Rico out 10 NM-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...South winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Scattered showers. Isolated
thunderstorms this afternoon.
.TONIGHT...West winds 5 to 10 knots, becoming northwest after
midnight. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated
thunderstorms in the evening. Scattered showers.
.TUESDAY...Northwest winds 5 to 10 knots, becoming west with gusts
up to 30 knots in the afternoon. Seas around 2 feet or less.
Dominant period 7 seconds. Isolated thunderstorms in the morning.
Scattered showers.
.TUESDAY NIGHT...North winds 5 to 10 knots. Gusts up to 30 knots
in the evening. Seas 1 to 3 feet. Dominant period 10 seconds.
Isolated showers.
.WEDNESDAY...Northwest winds 10 to 15 knots with gusts up to 25
knots. Seas 1 to 3 feet. Dominant period 11 seconds. Isolated
showers.
.THURSDAY...Northwest winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots with gusts up to 25
knots. Seas around 2 feet or less. Dominant period 10 seconds.

$$

AMZ741-260315-
Mona Passage Southward to 17N-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...South winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Numerous showers with isolated
thunderstorms.
.TONIGHT...West winds 10 to 15 knots, becoming north 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.
.TUESDAY...North winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 4 feet with occasional seas around 5 feet. Dominant
period 11 seconds. Numerous showers with isolated thunderstorms.
.TUESDAY NIGHT...North winds 15 to 20 knots. Gusts up to 30 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 11 seconds. Isolated showers.
.WEDNESDAY...North winds 10 to 15 knots with gusts up to 25 knots.
Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant
period 13 seconds.
.THURSDAY...Northwest winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots, becoming north with
gusts up to 25 knots. Seas 3 to 5 feet with occasional seas up to
6 feet. Dominant period 10 seconds. Isolated showers.

$$

AMZ742-260315-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...South winds 10 to 15 knots, becoming southwest
this afternoon. Seas 1 to 3 feet. Dominant period 7 seconds.
Numerous showers with isolated thunderstorms.
.TONIGHT...West winds 10 to 15 knots, becoming north after
midnight. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated
thunderstorms in the evening. Numerous showers.
.TUESDAY...North 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.
.TUESDAY NIGHT...North winds 10 to 15 knots. Gusts up to 25 knots
in the evening. Seas 4 to 6 feet with occasional seas up to 8
feet. Dominant period 11 seconds.
.WEDNESDAY...North winds 10 to 15 knots. Gusts up to 25 knots.
Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant
period 12 seconds. Isolated showers.
.THURSDAY...Northwest winds 5 to 10 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots, becoming north. Seas 4
to 6 feet with occasional seas up to 8 feet. Dominant period 10
seconds, decreasing to 8 seconds.

$$

AMZ745-260315-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
1029 AM AST Mon Mar 25 2024

.REST OF TODAY...South winds around 10 knots. Seas around 2 feet
or less. Dominant period 7 seconds. Numerous showers with isolated
thunderstorms.
.TONIGHT...Southwest winds 5 to 10 knots, becoming north after
midnight. Seas around 2 feet or less. Dominant period 6 seconds.
Isolated thunderstorms in the evening. Scattered showers.
.TUESDAY...North winds 15 to 20 knots, increasing to north 15 to
20 knots with gusts up to 30 knots in the afternoon. Seas 1 to 3
feet. Dominant period 6 seconds. Isolated showers.
.TUESDAY NIGHT...North winds 15 to 20 knots with gusts up to 30
knots, diminishing to north 15 to 20 knots after midnight. Seas 2
to 4 feet with occasional seas around 5 feet. Dominant period 11
seconds.
.WEDNESDAY...North winds 10 to 15 knots with gusts up to 25 knots.
Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant
period 13 seconds.
.THURSDAY...Northwest winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 12 seconds.
.FRIDAY...North winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.

$$


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