391
FZCA52 TJSJ 182044
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
444 PM AST Wed Sep 18 2024

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-191000-
444 PM AST Wed Sep 18 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...

East-northeast winds will dominate, gradually becoming variable
and weakening from Thursday throughout the weekend. Showers are
expected over the local Atlantic waters and Caribbean passages
later tonight, with a chance of isolated thunderstorms off the
western coast of Puerto Rico each afternoon. Increased showers
with isolated thunderstorms over the local waters are likely on
Thursday and Friday. Overall, seas will range from 3 to 4 feet,
occasionally reaching 5 to 6 feet in some areas, while southern
coastal regions of the islands will experience lower seas in the
coming days.


$$

AMZ711-191000-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
444 PM AST Wed Sep 18 2024

.TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots with gusts up to 20 knots after
midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 4 feet at 9 seconds. Isolated showers this evening, then
scattered showers with isolated thunderstorms after midnight.
.THURSDAY...Northeast winds 5 to 10 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 9 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 4 feet at 10 seconds.
Scattered showers after midnight.
.FRIDAY...East winds around 5 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Wave Detail: Northeast 4 feet at 10 seconds.
.FRIDAY NIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
Northeast 4 feet at 10 seconds. Scattered showers.
.SATURDAY...Southeast winds around 5 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
Scattered showers in the morning.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas around 4 feet, occasionally to 5 feet. Scattered
showers.
.SUNDAY...South winds around 5 knots, becoming southwest in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Scattered
showers in the morning.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet. Scattered showers.
.MONDAY...South winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet.
.MONDAY NIGHT...Southeast winds around 5 knots. Seas around 3 feet,
occasionally to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-191000-
Coastal Waters of Northern Puerto Rico out 10 NM-
444 PM AST Wed Sep 18 2024

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots,
becoming southeast around 5 knots. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: Northeast 4 feet at 9 seconds and northeast
1 foot at 14 seconds. Isolated showers this evening, then scattered
showers after midnight. Isolated thunderstorms late.
.THURSDAY...East winds around 5 knots, becoming northeast in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 9 seconds and northeast 1 foot at 14 seconds.
Numerous showers, mainly in the morning.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
Scattered showers after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas around 4 feet, occasionally
to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds. Scattered
showers.
.FRIDAY NIGHT...Southeast winds around 5 knots. Seas around 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
Scattered showers.
.SATURDAY...Southeast winds around 5 knots, becoming northeast in
the afternoon. Seas around 4 feet, occasionally to 5 feet. Wave
Detail: Northeast 4 feet at 10 seconds. Scattered showers.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas around 4 feet, occasionally to 5 feet. Scattered
showers.
.SUNDAY...South winds around 5 knots, becoming northeast in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Scattered
showers in the afternoon.
.SUNDAY NIGHT...East winds around 5 knots, becoming south after
midnight. Seas around 3 feet, occasionally to 4 feet. Scattered
showers.
.MONDAY...Southeast winds around 5 knots, becoming northeast around
5 knots in the afternoon. Seas around 3 feet, occasionally to
4 feet.
.MONDAY NIGHT...Southeast winds around 5 knots. Seas around 3 feet,
occasionally to 4 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ716-191000-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
444 PM AST Wed Sep 18 2024

.TONIGHT...Northeast winds 5 to 10 knots, diminishing to around
5 knots late. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
Northeast 3 feet at 9 seconds and east 2 feet at 5 seconds. Isolated
showers this evening, then scattered showers after midnight.
Isolated thunderstorms late.
.THURSDAY...Northeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds.
.FRIDAY...Southeast winds around 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
Scattered showers in the morning.
.FRIDAY NIGHT...Southeast winds around 5 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
.SATURDAY...South winds around 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
.SATURDAY NIGHT...Southeast winds around 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
.SUNDAY...South winds around 5 knots. Seas 2 to 4 feet, occasionally
to 5 feet.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ723-191000-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
444 PM AST Wed Sep 18 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 2 feet at 4 seconds and
northeast 2 feet at 9 seconds. Isolated showers this evening, then
scattered showers after midnight. Isolated thunderstorms late.
.THURSDAY...East winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 10 seconds
and east 1 foot at 4 seconds. Scattered showers.
.THURSDAY NIGHT...East winds around 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at 10 seconds.
.FRIDAY...Southeast winds around 5 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
.FRIDAY NIGHT...Southeast winds around 5 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds
and south 1 foot at 5 seconds. Scattered showers in the afternoon.
.SATURDAY NIGHT...Southeast winds around 5 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.
.SUNDAY...South winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet. Scattered showers in the morning.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ726-191000-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
444 PM AST Wed Sep 18 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: East 2 feet at 5 seconds and
east 2 feet at 9 seconds. Isolated showers until early morning, then
scattered showers late.
.THURSDAY...Northeast winds around 5 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 9 seconds and southeast 1 foot at 4 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds around 5 knots. Seas around
2 feet. Wave Detail: East 2 feet at 9 seconds and southeast 1 foot
at 4 seconds.
.FRIDAY...Southeast winds around 5 knots. Seas around 2 feet. Wave
Detail: Northeast 2 feet at 9 seconds and southeast 1 foot at
3 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 2 feet at 10 seconds
and southeast 1 foot at 3 seconds.
.SATURDAY...Southeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 2 feet at 10 seconds
and southeast 1 foot at 4 seconds.
.SATURDAY NIGHT...Southeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.SUNDAY...South winds around 5 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the morning.
.MONDAY NIGHT...Southeast winds around 5 knots. Seas around 2 feet.

$$

AMZ733-191000-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
444 PM AST Wed Sep 18 2024

.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
5 seconds and east 1 foot at 10 seconds. Scattered showers. Isolated
thunderstorms after midnight.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: East 3 feet at 5 seconds and east 2 feet at
9 seconds. Scattered showers in the morning.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 2 feet at 9 seconds.
.FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 9 seconds and southeast 1 foot at 4 seconds.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds and northeast 2 feet at
10 seconds.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds
and northeast 2 feet at 10 seconds. Scattered showers in the
afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ735-191000-
Coastal Waters of Southern Puerto Rico out 10 NM-
444 PM AST Wed Sep 18 2024

.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots,
becoming northeast 5 to 10 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. Isolated showers early this evening, then
scattered showers late this evening. Isolated showers after
midnight.
.THURSDAY...East winds around 5 knots, increasing to 5 to 10 knots
in the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 5 seconds and east 1 foot at 9 seconds. Scattered showers in the
afternoon.
.THURSDAY NIGHT...Northeast winds around 5 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 1 foot
at 9 seconds.
.FRIDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 1 foot at
4 seconds and east 1 foot at 9 seconds. Scattered showers in the
afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 4 seconds and east 1 foot at 9 seconds.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and east 1 foot at 9 seconds.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
.SUNDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet. Scattered showers in the afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

$$

AMZ741-191000-
Mona Passage Southward to 17N-
444 PM AST Wed Sep 18 2024

.TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots late this evening and overnight. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
6 seconds and northeast 2 feet at 9 seconds. Scattered showers.
Isolated thunderstorms after midnight.
.THURSDAY...East winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots in the afternoon. Seas around 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds
and northeast 2 feet at 9 seconds.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Southeast 2 feet at 5 seconds
and northeast 2 feet at 9 seconds. Scattered showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at 9 seconds
and southeast 2 feet at 5 seconds.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at 9 seconds
and southeast 2 feet at 4 seconds.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at 10 seconds
and southeast 2 feet at 4 seconds.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-191000-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
444 PM AST Wed Sep 18 2024

.TONIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots
with gusts up to 20 knots late this evening and early morning, then
diminishing to 5 to 10 knots late. Seas 2 to 3 feet, occasionally to
4 feet. Wave Detail: East 3 feet at 7 seconds. Scattered showers
early this evening, then isolated showers late this evening and
overnight.
.THURSDAY...East winds 5 to 10 knots, becoming north in the
afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
Northeast 3 feet at 8 seconds and southeast 1 foot at 5 seconds.
Scattered showers in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 8 seconds
and southeast 1 foot at 4 seconds.
.FRIDAY...Southeast winds around 5 knots, becoming northwest in the
afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 9 seconds and southeast 1 foot at 4 seconds.
Scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
.SATURDAY...Southeast winds around 5 knots, becoming southwest in
the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: Northeast 4 feet at 10 seconds. Scattered showers in the
afternoon.
.SATURDAY NIGHT...East winds around 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
.SUNDAY...Southeast winds around 5 knots, becoming southwest in the
afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
.SUNDAY NIGHT...Southeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.MONDAY...South winds around 5 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

$$

AMZ745-191000-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
444 PM AST Wed Sep 18 2024

.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 6 seconds and north 1 foot at 8 seconds.
Scattered showers this evening.
.THURSDAY...East winds around 5 knots, becoming northwest in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 1 foot at
4 seconds and north 1 foot at 8 seconds. Numerous showers in the
afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northeast 1 foot at 4 seconds and north 1 foot at 9 seconds.
.FRIDAY...Southeast winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 4 seconds and northwest 1 foot at
8 seconds. Scattered showers in the afternoon.
.FRIDAY NIGHT...East winds around 5 knots, increasing to 5 to
10 knots after midnight. Seas around 2 feet. Wave Detail: South
1 foot at 4 seconds and north 1 foot at 8 seconds.
.SATURDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 1 foot at
4 seconds and north 1 foot at 9 seconds.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Scattered showers in the afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

$$