Coastal Waters Forecast
Issued by NWS San Juan, PR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
000
FZCA52 TJSJ 180117
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
917 PM AST Wed Apr 17 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.

AMZ700-181430-
917 PM AST Wed Apr 17 2024

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface ridge over the north-central Atlantic and broad surface
trough across the eastern Caribbean will generate moderate to locally
fresh east to northeasterly winds through tonight. An upper level
trough and induced surface trough will continue to promote inclement
weather across the local waters over the next few days, with squally
weather and thunderstorms possible at times. A northeasterly swell is
forecast to arrive tomorrow.

$$

AMZ711-181430-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds. Isolated
showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Isolated 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.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds,
increasing to 10 seconds. Isolated showers.

$$

AMZ712-181430-
Coastal Waters of Northern Puerto Rico out 10 NM-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 9 seconds. Scattered
showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.SUNDAY...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 10 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers with isolated thunderstorms.

$$

AMZ716-181430-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 11 seconds.
Numerous showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Numerous showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 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.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Numerous
showers with isolated thunderstorms.

$$

AMZ723-181430-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 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.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds,
subsiding to 7 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Numerous
showers. Isolated thunderstorms through the night.

$$

AMZ726-181430-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Numerous showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Numerous showers with isolated thunderstorms.

$$

AMZ733-181430-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Isolated showers.
.SATURDAY...Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 1 to 3 feet. Dominant period 10 seconds. Scattered
showers.
.SUNDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas 2
to 4 feet with occasional seas around 5 feet. Dominant period 10
seconds, decreasing to 7 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Numerous
showers with isolated thunderstorms.

$$

AMZ735-181430-
Coastal Waters of Southern Puerto Rico out 10 NM-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated
showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Isolated showers.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet or less. Dominant period 7 seconds.
Isolated showers.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet
or less. Dominant period 7 seconds. Isolated showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas around 2 feet or
less. Dominant period 7 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas 1
to 3 feet. Dominant period 6 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Numerous showers. Isolated thunderstorms through
the night.

$$

AMZ741-181430-
Mona Passage Southward to 17N-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 10 to 15 knots. Gusts up to 25 knots
this evening. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 7 seconds. Isolated
showers.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Gusts up to 25
knots in the evening. Seas 2 to 4 feet with occasional seas around
5 feet. Dominant period 11 seconds. Isolated showers.
.SATURDAY...Northeast winds 15 to 20 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds,
subsiding to 7 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 6 seconds.
Scattered showers. Isolated thunderstorms through the night.

$$

AMZ742-181430-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.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.
.SUNDAY...East winds 10 to 15 knots. Gusts up to 25 knots. Seas 2
to 4 feet with occasional seas around 5 feet. Dominant period 10
seconds, decreasing to 7 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 6 seconds. Isolated thunderstorms through the day. Numerous
showers.

$$

AMZ745-181430-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
917 PM AST Wed Apr 17 2024

.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 6 seconds. Isolated showers.
.THURSDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas around 2 feet or less. Dominant period 6 seconds.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2
feet or less. Dominant period 6 seconds. Isolated showers.
.FRIDAY...Northeast winds 10 to 15 knots, becoming north in the
afternoon. Seas around 2 feet or less. Dominant period 6 seconds.
Scattered showers.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 2 feet
or less. Dominant period 6 seconds.
.SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Scattered showers.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet or less.
Dominant period 6 seconds. Scattered showers.
.MONDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Scattered showers.

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.