Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 160118
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
918 PM AST Mon Apr 15 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.

AMZ700-161430-
918 PM AST Mon Apr 15 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-northeasterly winds. A fading northerly swell and choppy
wind driven seas will continue to promote confused seas across the
Atlantic waters. An approaching upper level trough and induced
surface trough will continue to promote inclement weather across the
local waters for the next few days. A pulse of northeasterly swell is
forecast to arrive by Thursday increasing wave periods once again.

$$

AMZ711-161430-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
918 PM AST Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.REST OF TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
after midnight. Seas 5 to 7 feet with occasional seas up to 9
feet. Dominant period 10 seconds. Numerous showers and scattered
thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
morning. Seas 5 to 7 feet with occasional seas up to 9 feet.
Dominant period 9 seconds. Numerous showers and scattered
thunderstorms.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots, becoming east
after midnight. Gusts up to 35 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 7 seconds. Scattered
showers with isolated thunderstorms.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Numerous
showers with isolated thunderstorms.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 6
feet with occasional seas up to 8 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 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.
Isolated showers.
.SATURDAY...Northeast 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 showers.

$$

AMZ712-161430-
Coastal Waters of Northern Puerto Rico out 10 NM-
918 PM AST Mon Apr 15 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. Numerous
showers and scattered thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Numerous
showers and scattered thunderstorms.
.TUESDAY NIGHT...East winds 15 to 20 knots with gusts up to 30
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 8 seconds. Numerous showers with isolated
thunderstorms.
.WEDNESDAY...Northeast 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.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 9 seconds.
Numerous showers with isolated thunderstorms.
.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.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.

$$

AMZ716-161430-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
918 PM AST Mon Apr 15 2024

.REST OF TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
after midnight. Seas 4 to 6 feet with occasional seas up to 8
feet. Dominant period 11 seconds. Numerous showers with isolated
thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Numerous
showers and scattered thunderstorms.
.TUESDAY NIGHT...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.
.WEDNESDAY...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.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 8 seconds.
Scattered showers with isolated thunderstorms.
.THURSDAY...Northeast winds 5 to 10 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.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.

$$

AMZ723-161430-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
918 PM AST Mon Apr 15 2024

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 10 to 15 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 with isolated
thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
morning. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 10 seconds. Scattered showers with isolated
thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms after midnight.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers with isolated thunderstorms.
.WEDNESDAY NIGHT...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...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers. Isolated thunderstorms through the night.
.FRIDAY...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.

$$

AMZ726-161430-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
918 PM AST Mon Apr 15 2024

.REST OF TONIGHT...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 7 seconds. Numerous showers with isolated
thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Numerous
showers and scattered thunderstorms.
.TUESDAY 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.
.WEDNESDAY...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.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3
feet. Dominant period 7 seconds. Scattered showers with isolated
thunderstorms.
.THURSDAY...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.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.

$$

AMZ733-161430-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
918 PM AST Mon Apr 15 2024

.REST OF TONIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
after midnight. Seas 3 to 5 feet with occasional seas up to 6
feet. Dominant period 6 seconds. Scattered showers with isolated
thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
morning. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Isolated thunderstorms in the morning.
Scattered showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Gusts up to 25 knots
after midnight. Seas 3 to 5 feet with occasional seas up to 6
feet. Dominant period 7 seconds. Scattered showers. Isolated
thunderstorms after midnight.
.WEDNESDAY...East winds 10 to 15 knots with gusts up to 25 knots,
diminishing to east 10 to 15 knots in the afternoon. Seas 2 to 4
feet with occasional seas around 5 feet. Dominant period 7
seconds. Scattered showers. Isolated thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas around 5 feet. Dominant period 7 seconds.
Scattered showers with isolated thunderstorms.
.THURSDAY...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 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.
.SATURDAY...Northeast 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. Scattered showers.

$$

AMZ735-161430-
Coastal Waters of Southern Puerto Rico out 10 NM-
918 PM AST Mon Apr 15 2024

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

$$

AMZ741-161430-
Mona Passage Southward to 17N-
918 PM AST Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
LATE TUESDAY NIGHT...

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers. Isolated thunderstorms after midnight.
.TUESDAY...East winds 10 to 15 knots. Gusts up to 25 knots in the
morning. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 11 seconds. Isolated thunderstorms in the morning.
Scattered showers.
.TUESDAY NIGHT...East winds 20 to 25 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 11 seconds.
Scattered showers.
.WEDNESDAY...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 7 seconds. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
25 knots, diminishing to northeast 10 to 15 knots after midnight.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 7 seconds. Isolated 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. Isolated thunderstorms through the night.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Scattered showers.
.SATURDAY...Northeast 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. Isolated showers.

$$

AMZ742-161430-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
918 PM AST Mon Apr 15 2024

.REST OF TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Numerous showers. Isolated thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to
30 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 11 seconds. Scattered showers with isolated
thunderstorms.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 6 seconds. Isolated
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4
feet with occasional seas around 5 feet. Dominant period 8
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.
.FRIDAY...Northeast winds 10 to 15 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 with isolated thunderstorms.

$$

AMZ745-161430-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
918 PM AST Mon Apr 15 2024

.REST OF TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers. Isolated
thunderstorms after midnight.
.TUESDAY...East winds 10 to 15 knots with gusts up to 25 knots.
Seas 1 to 3 feet. Dominant period 10 seconds. Scattered showers
with isolated thunderstorms.
.TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 1 to 3 feet.
Dominant period 7 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots, becoming northeast in the
afternoon. Seas 1 to 3 feet. Dominant period 6 seconds. Isolated
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 3
feet. Dominant period 6 seconds. Isolated showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Isolated thunderstorms through
the day. Scattered showers.
.FRIDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or
less. Dominant period 6 seconds. Scattered showers.
.SATURDAY...East winds 5 to 10 knots, becoming northeast. Seas
around 2 feet or less. Dominant period 6 seconds. Scattered
showers with isolated thunderstorms.

$$


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