Coastal Waters Forecast
Issued by NWS San Juan, PR

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105
FZCA52 TJSJ 192004
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
404 PM AST Thu Sep 19 2024

Puerto Rico and the U.S. Virgin Islands Waters

AMZ700-200845-
404 PM AST Thu Sep 19 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A weak surface low pressure lingering northeast of the region will
continue to shift winds, gradually becoming variable and weakening
throughout the weekend. Showers and isolated thunderstorms will
persist across the regional waters, particularly off the western
coastal waters of Puerto Rico each afternoon.

$$

AMZ711-200845-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
404 PM AST Thu Sep 19 2024

.TONIGHT...Northeast winds 5 to 10 knots, becoming east late. Seas
around 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet
at 10 seconds and east 2 feet at 9 seconds. Isolated showers early
this evening, then isolated thunderstorms late this evening.
Scattered showers late this evening and overnight.
.FRIDAY...East winds around 5 knots. Seas 4 to 5 feet, occasionally
to 6 feet. Wave Detail: Northeast 4 feet at 10 seconds and east
2 feet at 9 seconds. Scattered showers in the morning.
.FRIDAY NIGHT...East winds around 5 knots, becoming southeast after
midnight. Seas around 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 4 feet at 10 seconds and east 1 foot at 8 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
and east 1 foot at 9 seconds. Scattered showers in the morning.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 4 feet at 10 seconds and east 1 foot at 9 seconds.
Scattered showers.
.SUNDAY...Southeast winds around 5 knots, becoming west around
5 knots in the afternoon. Seas around 3 feet, occasionally to
4 feet. Wave Detail: Northeast 3 feet at 9 seconds and east 1 foot
at 10 seconds.
.SUNDAY NIGHT...East winds around 5 knots, becoming south after
midnight. Seas around 3 feet, occasionally to 4 feet.
.MONDAY...South winds around 5 knots. Seas around 3 feet,
occasionally to 4 feet.
.MONDAY NIGHT...Southeast winds around 5 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Numerous showers.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Scattered showers.

Winds and seas higher in and near thunderstorms.

$$

AMZ712-200845-
Coastal Waters of Northern Puerto Rico out 10 NM-
404 PM AST Thu Sep 19 2024

.TONIGHT...East winds 5 to 10 knots, becoming southeast late. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet
at 10 seconds. Isolated showers this evening, then scattered showers
after midnight.
.FRIDAY...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.
.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 around 5 knots, becoming southeast
after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave
Detail: Northeast 4 feet at 10 seconds. Scattered showers.
.SUNDAY...Southeast winds around 5 knots, becoming north in the
afternoon. Seas around 3 feet, occasionally to 4 feet. Wave Detail:
Northeast 3 feet at 9 seconds. Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds around 5 knots, becoming south after
midnight. Seas around 3 feet, occasionally to 4 feet.
.MONDAY...Southeast winds around 5 knots, becoming northeast in the
afternoon. Seas around 3 feet, occasionally to 4 feet. Scattered
showers in the afternoon.
.MONDAY NIGHT...Southeast winds around 5 knots. Seas around 3 feet,
occasionally to 4 feet. Numerous showers.
.TUESDAY...Southeast winds around 5 knots, becoming northeast in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Numerous
showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Scattered showers.

$$

AMZ716-200845-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
404 PM AST Thu Sep 19 2024

.TONIGHT...Northeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds.
Isolated showers.
.FRIDAY...East winds around 5 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds. Scattered
showers.
.FRIDAY NIGHT...Southeast winds around 5 knots. Seas 2 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...South winds around 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
.SUNDAY...South winds around 5 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds.
.SUNDAY NIGHT...South winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.MONDAY...South winds around 5 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the morning.
.MONDAY NIGHT...Southeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Numerous showers.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Scattered showers.

$$

AMZ723-200845-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
404 PM AST Thu Sep 19 2024

.TONIGHT...East winds around 5 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Wave Detail: Northeast 3 feet at 10 seconds. Isolated
showers.
.FRIDAY...Southeast winds around 5 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds.
Scattered showers in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 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 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds
and southeast 1 foot at 5 seconds. Scattered showers in the
afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 10 seconds
and south 2 feet at 5 seconds. Scattered showers.
.SUNDAY...South winds around 5 knots. Seas around 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 3 feet at 9 seconds
and south 2 feet at 6 seconds.
.SUNDAY NIGHT...Southeast winds around 5 knots. Seas around 3 feet,
occasionally to 4 feet.
.MONDAY...Southeast winds around 5 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.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet,
occasionally to 4 feet.

$$

AMZ726-200845-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
404 PM AST Thu Sep 19 2024

.TONIGHT...Northeast winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 4 seconds and east 1 foot at 9 seconds.
Isolated showers.
.FRIDAY...Southeast winds around 5 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 9 seconds. Scattered showers.
.FRIDAY NIGHT...Southeast winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 1 foot at 2 seconds
and east 1 foot at 9 seconds.
.SATURDAY...South winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Northeast 2 feet at 9 seconds
and southeast 1 foot at 3 seconds.
.SATURDAY NIGHT...South winds around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds
and northeast 1 foot at 9 seconds.
.SUNDAY...South winds around 5 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast
1 foot at 9 seconds. Scattered showers in the morning.
.SUNDAY NIGHT...South winds around 5 knots. Seas around 2 feet.
Scattered showers.
.MONDAY...South winds around 5 knots. Seas around 2 feet. Scattered
showers in the morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Scattered showers.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.

$$

AMZ733-200845-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
404 PM AST Thu Sep 19 2024

.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds and east 1 foot at 9 seconds.
Isolated showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 4 seconds and east 1 foot at 9 seconds.
.FRIDAY NIGHT...Southeast 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.
Scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds
and east 1 foot at 10 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Wave Detail: Southeast 2 feet at 6 seconds
and northeast 1 foot at 9 seconds. Scattered showers in the morning.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers in the morning.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

$$

AMZ735-200845-
Coastal Waters of Southern Puerto Rico out 10 NM-
404 PM AST Thu Sep 19 2024

.TONIGHT...Northeast winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds and east 1 foot at 9 seconds.
Isolated showers and thunderstorms this evening, then isolated
showers after midnight.
.FRIDAY...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.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. 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 1 foot at 4 seconds and east 1 foot at 9 seconds.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds and east 1 foot at
9 seconds.
.SUNDAY...East winds 5 to 10 knots, becoming south in the afternoon.
Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds.
Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Numerous showers.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Scattered showers in the morning.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ741-200845-
Mona Passage Southward to 17N-
404 PM AST Thu Sep 19 2024

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet, occasionally
to 4 feet. Wave Detail: Southeast 2 feet at 5 seconds and north
2 feet at 9 seconds. Isolated thunderstorms this evening. Scattered
showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally
to 5 feet. Wave Detail: Southeast 2 feet at 5 seconds and north
2 feet at 8 seconds.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: North 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: North 3 feet at 10 seconds and
southeast 2 feet at 4 seconds.
.SATURDAY NIGHT...East 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 5 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at 10 seconds
and southeast 2 feet at 6 seconds. Scattered showers in the morning.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet,
occasionally to 4 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 3 to 4 feet,
occasionally to 5 feet.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet.

Winds and seas higher in and near thunderstorms.

$$

AMZ742-200845-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
404 PM AST Thu Sep 19 2024

.TONIGHT...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. Isolated showers early this evening. Isolated
showers late.
.FRIDAY...Southeast winds around 5 knots, becoming north in the
afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
Northeast 3 feet at 9 seconds and south 1 foot at 4 seconds.
.FRIDAY NIGHT...East winds around 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 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 3 feet at 10 seconds. Scattered showers in the
afternoon.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 3 feet at 10 seconds.
.SUNDAY...Southeast winds around 5 knots, becoming southwest in the
afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Wave Detail:
Northeast 3 feet at 9 seconds and south 1 foot at 5 seconds.
.SUNDAY NIGHT...East winds 5 to 10 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 around 5 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers.
.TUESDAY...Southeast winds around 5 knots, becoming south in the
afternoon. Seas 2 to 3 feet, occasionally to 4 feet. Scattered
showers in the afternoon.
.TUESDAY NIGHT...East winds around 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet.

$$

AMZ745-200845-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
404 PM AST Thu Sep 19 2024

.TONIGHT...East winds around 5 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 4 seconds and north 1 foot at 9 seconds.
Isolated showers and thunderstorms early this evening, then isolated
showers late this evening.
.FRIDAY...Southeast winds around 5 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds and north 1 foot at 8 seconds.
.FRIDAY NIGHT...East winds around 5 knots. 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. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 4 seconds and north 1 foot at 8 seconds.
.SATURDAY NIGHT...East winds around 5 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 4 seconds and north 1 foot at
8 seconds.
.SUNDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
5 seconds and northwest 1 foot at 9 seconds.
.SUNDAY NIGHT...Southeast winds around 5 knots. Seas around 2 feet.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Scattered showers in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots, diminishing to around
5 knots after midnight. Seas 2 to 3 feet, occasionally to 4 feet.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet. Scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet,
occasionally to 4 feet.

Winds and seas higher in and near thunderstorms.

$$