Coastal Waters Forecast
Issued by NWS San Juan, PR

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000
FZCA52 TJSJ 191411
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
1011 AM AST Sat Aug 19 2017

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.

AMZ700-200230-
1011 AM AST Sat Aug 19 2017

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Tropical Storm Harvey will continue to move westward across the
Caribbean Sea, passing well south of the coastal waters. Hazardous
seas can be expected across the Caribbean waters and local passages.
Hazardous seas will continue across the offshore Atlantic waters
through Monday as a low pressure area northeast of the Leeward
Islands moves north of the forecast area.

$$

AMZ710-200230-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY Morning...

.REST OF TODAY...East winds 15 to 20 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant Period 8 seconds. North
swell around 4 feet. Isolated showers.
.TONIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. North
swell around 4 feet in the evening. Isolated showers.
.SUNDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 10 seconds.
Northeast swell 4 to 7 feet. Isolated thunderstorms through the
day. Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 10 seconds.
Northeast swell 4 to 7 feet. Numerous showers and isolated
thunderstorms.
.MONDAY...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 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds. East
swell around 4 feet. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. East
swell around 4 feet. Scattered showers.

$$

AMZ712-200230-
Coastal Waters of Northern Puerto Rico out 10 NM-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM AST THIS Evening...

.REST OF TODAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. North
swell around 4 feet. Scattered showers through the day. Isolated
thunderstorms in the afternoon.
.TONIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. North
swell around 4 feet in the evening. Isolated thunderstorms in the
evening, then isolated showers after midnight.
.SUNDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northeast swell around 4 feet in the afternoon. Scattered showers
through the day. Isolated thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Northeast swell 4 to 5 feet. Scattered showers in the evening.
Isolated thunderstorms through the night.
.MONDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 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 around 4 feet. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers.

$$

AMZ715-200230-
Coastal Waters of Northern USVI and Culebra out 10 NM-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM AST THIS Afternoon...

.REST OF TODAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. Scattered
showers late in the morning, then isolated thunderstorms in the
afternoon.
.TONIGHT...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...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Northeast swell 4 to 5 feet. Isolated thunderstorms through the
day. Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Northeast
swell around 4 feet in the evening. Numerous showers and isolated
thunderstorms.
.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.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY...East winds around 10 knots. Seas 1 to 3 feet.
Dominant Period 10 seconds. Scattered showers.

$$

AMZ722-200230-
Anegada Passage Southward to 17N-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM AST THIS Afternoon...

.REST OF TODAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. Northeast
swell around 4 feet. Scattered showers late in the morning.
Isolated thunderstorms through the day.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Isolated
thunderstorms in the evening, then isolated showers after
midnight.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Northeast swell 4 to 5 feet. Scattered showers and isolated
thunderstorms.
.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 and isolated thunderstorms.
.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.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ725-200230-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM AST THIS Afternoon...

.REST OF TODAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. Northeast
swell around 4 feet shifting to the southeast in the afternoon.
Scattered showers late in the morning, then isolated thunderstorms
in the afternoon.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Isolated
thunderstorms in the evening, then isolated showers after
midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds. East
swell 4 to 5 feet. Isolated thunderstorms through the day.
Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Southeast
swell 4 to 5 feet in the evening. Numerous showers and isolated
thunderstorms.
.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.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ732-200230-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE Tonight...

.REST OF TODAY...East winds 20 to 25 knots. Seas 8 to 10 feet with
occasional seas up to 11 feet. Dominant Period 8 seconds.
Northeast swell 4 to 5 feet. Scattered showers and isolated
thunderstorms.
.TONIGHT...East winds 15 to 20 knots. Seas 8 to 10 feet with
occasional seas up to 11 feet. Dominant Period 7 seconds. East
swell around 4 feet in the evening. Scattered showers in the
evening. Isolated thunderstorms through the night.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds. East
swell around 4 feet in the afternoon. Isolated thunderstorms
through the day. Scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds. East
swell around 4 feet. Scattered showers and isolated thunderstorms.
.MONDAY...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.
Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers.

$$

AMZ735-200230-
Coastal Waters of Southern Puerto Rico out 10 NM-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM AST THIS Evening...

.REST OF TODAY...East winds 15 to 20 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant Period 8 seconds. East
swell around 4 feet. Scattered showers through the day. Isolated
thunderstorms in the afternoon.
.TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant Period 7 seconds.
Southeast swell around 4 feet in the evening. Isolated
thunderstorms in the evening. Scattered showers through the night.
.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 in the morning, then isolated thunderstorms in the
afternoon.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
thunderstorms.
.MONDAY...East winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
showers.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
thunderstorms. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
Period 8 seconds. Scattered showers.

$$

AMZ741-200230-
Mona Passage Southward to 17N-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE Tonight...

.REST OF TODAY...East winds 15 to 20 knots. Seas 8 to 10 feet with
occasional seas up to 11 feet. Dominant Period 10 seconds. East
swell 4 to 6 feet. Isolated thunderstorms through the day.
Scattered showers in the afternoon.
.TONIGHT...East winds 15 to 20 knots. Seas 8 to 10 feet with
occasional seas up to 11 feet. Dominant Period 8 seconds. East
swell 4 to 6 feet. Scattered showers in the evening. Isolated
thunderstorms 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. Scattered
showers through the day. Isolated thunderstorms in the afternoon.
.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
thunderstorms in the evening, then isolated showers after
midnight.
.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.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers.

$$

AMZ742-200230-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM AST THIS Evening...

.REST OF TODAY...Northeast winds 20 to 25 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 10 seconds.
Scattered showers through the day. Isolated thunderstorms in the
afternoon.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Isolated
thunderstorms in the evening. Scattered showers through the night.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Scattered
showers through the day. Isolated thunderstorms in the afternoon.
.SUNDAY NIGHT...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 thunderstorms in the evening.
Scattered showers through the night.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
thunderstorms. Scattered showers.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 10 seconds. Scattered showers.

$$

AMZ745-200230-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
1011 AM AST Sat Aug 19 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM AST THIS Evening...

.REST OF TODAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Scattered showers through the day. Isolated thunderstorms in the
afternoon.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Isolated
thunderstorms in the evening. Scattered showers through the night.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 7 seconds. Isolated showers in the morning, then
isolated thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 7 seconds. Isolated thunderstorms in the evening,
then isolated showers after midnight.
.MONDAY...East winds 15 to 20 knots. Seas 1 to 3 feet. Dominant
Period 7 seconds. Isolated thunderstorms, then isolated showers.
.TUESDAY...East winds 5 to 10 knots. Seas 2 feet or less. Dominant
Period 7 seconds. Isolated thunderstorms. Scattered showers.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 feet or less.
Dominant Period 7 seconds. Scattered showers.

$$



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