Coastal Waters Forecast
Issued by NWS San Juan, PR

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797
FZCA52 TJSJ 220815
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
415 AM AST Wed May 22 2024

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-222115-
415 AM AST Wed May 22 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 today. As the surface trough moves closer to the
region, expect increasing shower and thunderstorm activity across
the local waters through early in the weekend. In addition, the
proximity of 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 late tonight through at least Friday.
Winds are forecast to diminish once again by Friday night.


$$

AMZ711-222115-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
415 AM AST Wed May 22 2024

.TODAY...Southeast winds 10 to 15 knots, becoming east 5 to 10 knots
late. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: North
1 foot at 7 seconds and east 1 foot at 8 seconds. Scattered showers
with isolated thunderstorms this morning, then numerous showers and
scattered thunderstorms this afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
8 seconds and north 1 foot at 7 seconds. Numerous showers, mainly in
the evening.
.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 3 feet
at 8 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 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 9 seconds and north 1 foot at 7 seconds.
Numerous showers.
.FRIDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
3 feet at 8 seconds. Scattered showers and thunderstorms 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. Wave Detail: Northeast 3 feet at 8 seconds.
Numerous showers and scattered thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots, becoming east in the
afternoon. 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. Numerous showers.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-222115-
Coastal Waters of Northern Puerto Rico out 10 NM-
415 AM AST Wed May 22 2024

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

Winds and seas higher in and near thunderstorms.

$$

AMZ716-222115-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
415 AM AST Wed May 22 2024

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

Winds and seas higher in and near thunderstorms.

$$

AMZ723-222115-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
415 AM AST Wed May 22 2024

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

Winds and seas higher in and near thunderstorms.

$$

AMZ726-222115-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
415 AM AST Wed May 22 2024

.TODAY...East winds 10 to 15 knots with gusts up to 25 knots. Seas
2 to 3 feet, occasionally to 4 feet. Wave Detail: East 1 foot at
8 seconds. Isolated thunderstorms this morning. Showers. Scattered
thunderstorms this afternoon.
.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots. Seas
2 to 4 feet, occasionally to 5 feet. Numerous showers.
.THURSDAY...East winds 15 to 20 knots, diminishing to 10 to 15 knots
in the afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Numerous
showers in the morning, then showers and scattered thunderstorms 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 2 feet at 7 seconds.
Numerous showers.
.FRIDAY...Southeast 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 thunderstorms in the morning. Scattered
showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 7 seconds. Scattered showers and
thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots, diminishing to around
5 knots in the afternoon. Seas around 2 feet. Scattered showers in
the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. Seas around 2 feet in the morning, then 1 foot or
less. Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less, then
around 2 feet after midnight. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ733-222115-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
415 AM AST Wed May 22 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 1 foot at
8 seconds. Numerous showers. Isolated thunderstorms late this
morning. Scattered thunderstorms this afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 25 knots. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: East 1 foot at
8 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. 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 3 to 4 feet,
occasionally to 5 feet. Numerous showers.
.FRIDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
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. Wave Detail: East 2 feet at 7 seconds.
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, increasing to 10 to
15 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots in
the afternoon. Seas 2 to 3 feet, occasionally to 4 feet.
.SUNDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-222115-
Coastal Waters of Southern Puerto Rico out 10 NM-
415 AM AST Wed May 22 2024

.TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally to
4 feet. Isolated thunderstorms this morning. Showers. Scattered
thunderstorms this afternoon.
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots. Seas
3 to 4 feet, occasionally to 5 feet. Scattered showers in the
evening, then numerous showers after midnight.
.THURSDAY...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.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Numerous showers.
.FRIDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers and thunderstorms.
.SATURDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Scattered
showers.
.SATURDAY NIGHT...East winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas around 2 feet. Scattered showers.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered
showers.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-222115-
Mona Passage Southward to 17N-
415 AM AST Wed May 22 2024

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

Winds and seas higher in and near thunderstorms.

$$

AMZ742-222115-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
415 AM AST Wed May 22 2024

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

Winds and seas higher in and near thunderstorms.

$$

AMZ745-222115-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
415 AM AST Wed May 22 2024

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

Winds and seas higher in and near thunderstorms.

$$