817
FZCA52 TJSJ 220112
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
912 PM AST Tue May 21 2024

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-221415-
912 PM AST Tue May 21 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
The interaction of an induced surface trough to the west and a weakening
surface high pressure to the east will promote moderate east-southeast
winds through Wednesday. As the surface trough moves closer to the region
expect increasing shower and thunderstorm activity across the local waters
from Wednesday onwards. In addition, the proximity an amplifying mid
to upper level trough just west of the region will enhance thunderstorm
development as well as increase winds and the potential for squally conditions
across the Mona Passage and Atlantic waters by late Wednesday night and
through at least Friday. Winds are forecast to diminish once again by
the weekend.


$$

AMZ711-221415-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
912 PM AST Tue May 21 2024

.TODAY...Southeast winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet
at 5 seconds and east 2 feet at 8 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
5 seconds and north 1 foot at 7 seconds.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet
at 5 seconds and north 1 foot at 7 seconds. Scattered showers in the
morning, then numerous showers and scattered thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet.
Wave Detail: East 4 feet at 5 seconds and east 4 feet at 8 seconds.
Numerous showers, mainly in the evening.
.THURSDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: Northeast 4 feet at 7 seconds. Numerous showers.
.THURSDAY NIGHT...East winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 6 seconds and northeast 4 feet at 9 seconds. Numerous
showers.
.FRIDAY...Southeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
Scattered thunderstorms. Scattered showers in the morning, then
numerous showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Numerous showers and scattered
thunderstorms.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-221415-
Coastal Waters of Northern Puerto Rico out 10 NM-
912 PM AST Tue May 21 2024

.TODAY...Southeast winds 5 to 10 knots, becoming east 10 to 15 knots
with gusts up to 20 knots late this morning and afternoon. Seas 2 to
3 feet, occasionally to 4 feet. Wave Detail: Northeast 3 feet at
7 seconds. Isolated showers this morning, then scattered showers
with isolated thunderstorms this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots,
becoming east 5 to 10 knots after midnight. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds.
Scattered showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 7 seconds. Scattered showers in the
morning, then showers and scattered thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Gusts up to 25 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds.
Numerous showers and scattered thunderstorms in the evening, then
scattered showers after midnight.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots,
diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 7 seconds.
Scattered showers in the morning, then numerous showers in the
afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
Northeast 3 feet at 7 seconds and north 1 foot at 10 seconds.
Numerous showers.
.FRIDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Scattered
showers.
.FRIDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Scattered showers and thunderstorms.
.SATURDAY...East winds around 5 knots, increasing to 5 to 10 knots
in the afternoon. Seas around 2 feet. Scattered showers in the
morning, then numerous showers and scattered thunderstorms in the
afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-221415-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
912 PM AST Tue May 21 2024

.TODAY...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds and northeast 1 foot at
8 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
around 2 feet. Wave Detail: East 2 feet at 4 seconds and north
1 foot at 7 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds and
north 1 foot at 7 seconds. Scattered showers in the morning, then
numerous showers and scattered thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
East 3 feet at 5 seconds and north 1 foot at 7 seconds. Numerous
showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet
at 5 seconds and north 1 foot at 7 seconds. Scattered showers.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
East 3 feet at 6 seconds and north 1 foot at 7 seconds. Numerous
showers.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers and thunderstorms.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Scattered showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Numerous showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-221415-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
912 PM AST Tue May 21 2024

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
7 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
5 seconds and east 1 foot at 8 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 7 seconds. Scattered showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 6 seconds. Scattered thunderstorms in the evening.
Numerous showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas around 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet. Scattered showers in the morning.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet. Scattered showers.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ726-221415-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
912 PM AST Tue May 21 2024

.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 3 feet at 5 seconds and
east 1 foot at 8 seconds. Scattered showers. Isolated thunderstorms
this afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet at
7 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet
at 5 seconds and east 1 foot at 8 seconds. Scattered showers in the
morning, then numerous showers and scattered thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
East 3 feet at 6 seconds. Numerous showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet
at 6 seconds. Scattered showers in the morning, then numerous
showers in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 3 feet at 6 seconds.
Numerous showers.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered thunderstorms in the morning.
Scattered showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Scattered showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Numerous showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-221415-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
912 PM AST Tue May 21 2024

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
7 seconds. Scattered showers, mainly this morning.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at
7 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 7 seconds. Numerous showers. Scattered
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 7 seconds. Numerous showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 6 seconds. Scattered showers in the morning, then numerous
showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Southeast 4 feet at 6 seconds. Numerous showers.
.FRIDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Numerous
showers and scattered thunderstorms in the morning.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-221415-
Coastal Waters of Southern Puerto Rico out 10 NM-
912 PM AST Tue May 21 2024

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
around 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet
at 6 seconds. Isolated showers.
.TONIGHT...East winds 5 to 10 knots with gusts up to 20 knots. Seas
around 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet
at 6 seconds. Scattered showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 3 feet at 6 seconds.
Numerous showers in the morning, then showers and scattered
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
East 3 feet at 6 seconds. Scattered showers in the evening, then
numerous showers after midnight.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet
at 6 seconds. Scattered showers in the morning, then numerous
showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Southeast 4 feet at 7 seconds. Numerous showers.
.FRIDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Scattered
showers.
.FRIDAY NIGHT...East winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet.
Scattered showers and thunderstorms.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-221415-
Mona Passage Southward to 17N-
912 PM AST Tue May 21 2024

.TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast
4 feet at 6 seconds and northeast 1 foot at 8 seconds. Scattered
showers, mainly this morning.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet
at 6 seconds and north 1 foot at 7 seconds.
.WEDNESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots in the afternoon. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds
and north 1 foot at 7 seconds. Scattered showers in the morning,
then showers and scattered thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 5 feet at 7 seconds. Numerous showers and scattered
thunderstorms in the evening, then scattered showers after midnight.
.THURSDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers in the morning,
then numerous showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: Southeast 4 feet at 7 seconds and northwest 1 foot at
7 seconds. Scattered showers.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Numerous showers and scattered
thunderstorms.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Numerous showers and scattered
thunderstorms.
.SATURDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Numerous
showers and scattered thunderstorms in the morning.
.SATURDAY NIGHT...East winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-221415-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
912 PM AST Tue May 21 2024

.TODAY...East winds around 5 knots, becoming northeast late. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 2 feet
at 6 seconds and north 1 foot at 8 seconds. Scattered showers with
isolated thunderstorms this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 6 seconds and north 1 foot at 7 seconds.
Scattered showers in the evening.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds and north 1 foot at 7 seconds.
Showers and scattered thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
15 to 20 knots after midnight. Seas 2 to 3 feet, occasionally to
4 feet. Wave Detail: Northeast 3 feet at 4 seconds and north 1 foot
at 7 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: Northeast
3 feet at 6 seconds. Showers.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to
3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at
6 seconds and north 1 foot at 7 seconds. Scattered showers.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers in the morning, then
numerous showers and scattered thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Numerous showers and scattered thunderstorms.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Numerous
showers and scattered thunderstorms in the morning, then scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ745-221415-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
912 PM AST Tue May 21 2024

.TODAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots
late this morning and afternoon. Gusts up to 25 knots. Seas 2 to
3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet at
6 seconds and northwest 1 foot at 8 seconds. Isolated showers this
afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: Southeast 3 feet
at 6 seconds and northwest 1 foot at 7 seconds.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds
and northwest 1 foot at 7 seconds. Scattered showers in the morning,
then showers and scattered thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
Northeast 2 feet at 7 seconds. Scattered showers in the evening.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail: East 3 feet
at 5 seconds and north 1 foot at 7 seconds. Numerous showers.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
East 3 feet at 6 seconds and northwest 1 foot at 7 seconds.
Scattered showers.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers in the morning, then
numerous showers and scattered thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Numerous showers and scattered thunderstorms in the morning, then
scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$