Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 192021
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
421 PM AST Sun Nov 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.

AMZ700-200930-
421 PM AST Sun Nov 19 2017

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A shear line and associated moisture will continue to linger across
the local Atlantic waters tonight through Monday. This will result
in periods of showers and thunderstorms. Easterly winds and a more
stable air mass are expected across the local waters on Tuesday.

$$

AMZ710-200930-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
421 PM AST Sun Nov 19 2017

.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet. Isolated thunderstorms in the evening.
Scattered showers through the night.
.MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet. Isolated thunderstorms.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant Period 9 seconds.
Northeast swell around 4 feet in the evening. Isolated showers.
.TUESDAY...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 NIGHT...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 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 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.

$$

AMZ712-200930-
Coastal Waters of Northern Puerto Rico out 10 NM-
421 PM AST Sun Nov 19 2017

.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet after midnight. Numerous showers early in the
evening. Isolated thunderstorms in the evening, then isolated
showers after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet. Numerous showers and isolated thunderstorms.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant Period 9 seconds.
Northeast swell around 4 feet in the evening. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
showers.
.THURSDAY...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.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.

$$

AMZ715-200930-
Coastal Waters of Northern USVI and Culebra out 10 NM-
421 PM AST Sun Nov 19 2017

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. North
swell around 4 feet after midnight. Numerous showers and isolated
thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet in the evening. 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. Isolated
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 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 10 seconds.
Scattered showers.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northeast swell around 4 feet. Scattered showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers.

$$

AMZ722-200930-
Anegada Passage Southward to 17N-
421 PM AST Sun Nov 19 2017

.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. North
swell around 4 feet after midnight. Scattered showers and isolated
thunderstorms.
.MONDAY...Southeast winds around 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northeast swell around 4 feet. Isolated thunderstorms in the
morning. Scattered showers through the day.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell around 4 feet. 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 around 4 feet. Isolated showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Northeast swell around 4 feet in the evening. Scattered showers.
.WEDNESDAY...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. Scattered showers.
.THURSDAY...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.
.FRIDAY...East winds around 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ725-200930-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
421 PM AST Sun Nov 19 2017

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Numerous
showers and isolated thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers and isolated thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 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.
.THURSDAY...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. Scattered showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ732-200930-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
421 PM AST Sun Nov 19 2017

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers and isolated thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Southeast swell around 4 feet in the afternoon. Scattered showers
and isolated thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds. East
swell around 4 feet shifting to the northeast after midnight.
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 around 4 feet. Isolated showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Northeast
swell around 4 feet in the evening. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. East
swell 4 to 5 feet. Isolated showers.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ735-200930-
Coastal Waters of Southern Puerto Rico out 10 NM-
421 PM AST Sun Nov 19 2017

.TONIGHT...West winds 5 to 10 knots veering east. Seas 1 to 3
feet. Dominant Period 7 seconds. Isolated thunderstorms in the
evening. Scattered showers through the night.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 10 seconds. Numerous showers and isolated
thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 8 seconds. Scattered showers and isolated
thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
Period 7 seconds. Isolated showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 7 seconds. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
Period 8 seconds. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 7 seconds. Isolated showers.
.FRIDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 8 seconds. Isolated showers.

$$

AMZ741-200930-
Mona Passage Southward to 17N-
421 PM AST Sun Nov 19 2017

.TONIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet after midnight. Numerous showers and isolated
thunderstorms.
.MONDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet. Scattered showers and isolated thunderstorms.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet. 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. North
swell around 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Northeast
swell around 4 feet in the evening. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northeast swell around 4 feet. Isolated showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.

$$

AMZ742-200930-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
421 PM AST Sun Nov 19 2017

.TONIGHT...Southeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds increasing
to 10 seconds. North swell around 4 feet after midnight. Isolated
thunderstorms in the evening. Scattered showers through the night.
.MONDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet. Numerous showers and isolated thunderstorms.
.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...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. 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. 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.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 8 seconds. Isolated showers.

$$

AMZ745-200930-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
421 PM AST Sun Nov 19 2017

.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 7 seconds increasing to 10 seconds. 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 10 seconds. Numerous
showers through the day. Isolated thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
Period 10 seconds. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 2 feet or less.
Dominant Period 10 seconds. Isolated showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 feet or less. Dominant
Period 7 seconds. Isolated showers.

$$



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