Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 230800
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
400 AM AST Tue Apr 23 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.

AMZ700-232045-
400 AM AST Tue Apr 23 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface trough crossing the islands will yield winds from the
southeast today. Showers and thunderstorms will continue to affect
the local waters today. A small northwesterly swell will arrive late
Wednesday and Thursday. Another surface trough will shift the winds
from the east by Wednesday, before switching from the northeast on
Saturday under the influence of a surface high pressure over the
western Atlantic.

$$

AMZ711-232045-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
400 AM AST Tue Apr 23 2024

.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers. Isolated thunderstorms this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 10 seconds.
Isolated thunderstorms in the evening. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.

$$

AMZ712-232045-
Coastal Waters of Northern Puerto Rico out 10 NM-
400 AM AST Tue Apr 23 2024

.TODAY...Southeast winds 5 to 10 knots, becoming east this
afternoon. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 7 seconds. Numerous showers. Isolated
thunderstorms this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 8 seconds. Numerous showers with isolated thunderstorms.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Numerous showers with isolated thunderstorms.
.THURSDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 10 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds. Isolated
showers.

$$

AMZ716-232045-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
400 AM AST Tue Apr 23 2024

.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds. Numerous
showers. Isolated thunderstorms this afternoon.
.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 8 seconds. Isolated thunderstorms in the morning. Scattered
showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.

$$

AMZ723-232045-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
400 AM AST Tue Apr 23 2024

.TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
Scattered showers.
.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 6 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas
3 to 5 feet with occasional seas up to 6 feet. Dominant period 10
seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.

$$

AMZ726-232045-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
400 AM AST Tue Apr 23 2024

.TODAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Numerous showers. Isolated
thunderstorms this afternoon.
.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Numerous showers with isolated thunderstorms.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Numerous
showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.

$$

AMZ733-232045-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
400 AM AST Tue Apr 23 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers. Isolated thunderstorms this
afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Isolated thunderstorms in the morning. Scattered
showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
after midnight. Seas 2 to 4 feet with occasional seas around 5
feet. Dominant period 6 seconds. Isolated thunderstorms in the
evening. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers.
.FRIDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 7
seconds. Scattered showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Scattered showers.

$$

AMZ735-232045-
Coastal Waters of Southern Puerto Rico out 10 NM-
400 AM AST Tue Apr 23 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Scattered showers. Isolated
thunderstorms this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet or less.
Dominant period 6 seconds. Scattered showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Isolated thunderstorms in the morning. Isolated
showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Scattered showers with isolated
thunderstorms.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 2 to 4 feet with occasional seas around 5 feet. Dominant
period 7 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
thunderstorms through the day. Scattered showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.

$$

AMZ741-232045-
Mona Passage Southward to 17N-
400 AM AST Tue Apr 23 2024

.TODAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers.
.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Numerous showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers. Isolated thunderstorms in
the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 10 seconds. Scattered showers.
.FRIDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. Numerous
showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds, subsiding to 7 seconds. Isolated
thunderstorms through the day. Scattered showers.

$$

AMZ742-232045-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
400 AM AST Tue Apr 23 2024

.TODAY...South winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Scattered showers. Isolated thunderstorms this
afternoon.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Isolated showers.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Numerous showers. Isolated
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas
3 to 5 feet with occasional seas up to 6 feet. Dominant period 10
seconds. Isolated thunderstorms through the day. Numerous showers.
.FRIDAY...East winds 10 to 15 knots, becoming northeast. Seas 3 to
5 feet with occasional seas up to 6 feet. Dominant period 10
seconds. Showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds, subsiding to 8 seconds. Isolated
showers.

$$

AMZ745-232045-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
400 AM AST Tue Apr 23 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 7 seconds. Scattered showers. Isolated
thunderstorms this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet or less.
Dominant period 6 seconds. Scattered showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet or less.
Dominant period 7 seconds. Isolated thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 11 seconds. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated thunderstorms through the day. Numerous showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Numerous showers with isolated thunderstorms.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.

$$


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