Coastal Waters Forecast
Issued by NWS San Juan, PR

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000
FZCA52 TJSJ 210100
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
900 PM AST Sat Apr 20 2019

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.

AMZ700-211330-
900 PM AST Sat Apr 20 2019

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
As a surface high pressure ridge spreads across the north-central
Atlantic, winds will increase slightly through rest of the weekend.
Moderate to fresh easterly winds will therefore prevail across the
local waters. This will create choppy conditions across the local
waters and passages with hazardous seas forecast across the outer
Atlantic waters beginning on Sunday and continuing through early
Monday.

$$

AMZ710-211330-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
900 PM AST Sat Apr 20 2019

...SMALL CRAFT OPERATORS SHOULD EXERCISE CAUTION...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY
MORNING...

.REST OF TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 7 seconds.
Isolated showers.
.SUNDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 7 seconds. Isolated
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 8 seconds. Isolated
showers.
.MONDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Isolated
showers.
.TUESDAY...East winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds.
Northeast swell around 4 feet. Isolated showers.

$$

AMZ712-211330-
Coastal Waters of Northern Puerto Rico out 10 NM-
900 PM AST Sat Apr 20 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 7 seconds.
Scattered showers.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Isolated
showers.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Isolated
showers.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Numerous
showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Isolated
showers.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. Isolated
showers.

$$

AMZ715-211330-
Coastal Waters of Northern USVI and Culebra out 10 NM-
900 PM AST Sat Apr 20 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 7 seconds.
Isolated showers.
.SUNDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY NIGHT...East winds around 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers.
.TUESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. Isolated
showers.

$$

AMZ722-211330-
Anegada Passage Southward to 17N-
900 PM AST Sat Apr 20 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 7 seconds.
Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Isolated
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers.
.TUESDAY...East winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds.
Scattered showers.

$$

AMZ725-211330-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
900 PM AST Sat Apr 20 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 7 seconds.
Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Scattered
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers.
.TUESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. East
swell around 4 feet. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. East
swell around 4 feet. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Isolated showers.

$$

AMZ732-211330-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
900 PM AST Sat Apr 20 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 7 seconds.
Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Isolated
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 7 seconds. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Isolated
showers.
.TUESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds.
Northeast swell around 4 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. Isolated
showers.

$$

AMZ735-211330-
Coastal Waters of Southern Puerto Rico out 10 NM-
900 PM AST Sat Apr 20 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 7 seconds.
Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Isolated
showers.
.MONDAY...East winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 7 seconds. Scattered
showers.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant period 7 seconds.
Isolated showers.
.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.
Dominant period 8 seconds. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 2 feet or less.
Dominant period 7 seconds. Isolated showers.

$$

AMZ741-211330-
Mona Passage Southward to 17N-
900 PM AST Sat Apr 20 2019

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 7 seconds.
Isolated showers through the night.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 7 seconds. Isolated
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers through the night.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Scattered
showers.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. Isolated
showers.

$$

AMZ742-211330-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
900 PM AST Sat Apr 20 2019

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant period 8 seconds.
Scattered showers through the night.
.SUNDAY...East winds 10 to 15 knots backing northwest in the
afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Numerous showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.MONDAY...East winds 10 to 15 knots veering south in the
afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 8 seconds. Scattered showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds.
Northeast swell around 4 feet. Isolated showers.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. Isolated
showers.

$$

AMZ745-211330-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
900 PM AST Sat Apr 20 2019

.REST OF TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 7 seconds. Isolated
showers through the night.
.SUNDAY...East winds 10 to 15 knots backing north in the
afternoon. Seas 2 to 4 feet with occasional seas up to 5 feet.
Dominant period 10 seconds. Scattered showers.
.SUNDAY NIGHT...North winds 5 to 10 knots veering east after
midnight. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated
showers through the night.
.MONDAY...Southeast winds 5 to 10 knots backing northwest in the
afternoon. Seas 1 to 3 feet. Dominant period 11 seconds. Numerous
showers.
.MONDAY NIGHT...Northeast winds 10 to 15 knots veering east after
midnight. Seas 1 to 3 feet. Dominant period 11 seconds. Isolated
showers.
.TUESDAY...East winds 10 to 15 knots. Seas 2 feet or less.
Dominant period 10 seconds. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.
Dominant period 10 seconds. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 2 feet or less.
Dominant period 8 seconds. Isolated showers.

$$



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