Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 201947
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
347 PM AST Mon Nov 20 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.

AMZ700-210830-
347 PM AST Mon Nov 20 2017

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A trough over Hispaniola and its associated moisture will continue
to linger across the Mona Passage into the Atlantic waters tonight.
This will result in periods of showers and thunderstorms over the
western waters of Puerto Rico during the evening hours. Easterly
winds and a more stable air mass are expected across the local waters
on Tuesday. Seas will increase briefly up to 7 feet on Wednesday
across the Atlantic waters and the Anegada Passage

$$

AMZ710-210830-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
347 PM AST Mon Nov 20 2017

.TONIGHT...East winds 5 to 10 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 thunderstorms in the
evening, then isolated showers after midnight.
.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 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds. Isolated
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet
with occasional seas up to 9 feet. Dominant Period 8 seconds.
Northeast swell around 4 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 9 seconds. Isolated
showers.
.FRIDAY...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.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 13 seconds.
Northeast swell around 4 feet. Isolated showers.

$$

AMZ712-210830-
Coastal Waters of Northern Puerto Rico out 10 NM-
347 PM AST Mon Nov 20 2017

.TONIGHT...Southeast winds 5 to 10 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 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.
.WEDNESDAY 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.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 9 seconds. Isolated
showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.

$$

AMZ715-210830-
Coastal Waters of Northern USVI and Culebra out 10 NM-
347 PM AST Mon Nov 20 2017

.TONIGHT...East winds around 10 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. 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. 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 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY 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.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 9 seconds. Scattered
showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds.
Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 12 seconds.
Scattered showers.

$$

AMZ722-210830-
Anegada Passage Southward to 17N-
347 PM AST Mon Nov 20 2017

.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 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.
Northeast swell around 4 feet. Isolated showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds. Northeast
swell around 4 feet in the evening. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet
with occasional seas up to 9 feet. Dominant Period 8 seconds.
Scattered showers.
.THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 9 seconds. Scattered
showers.
.FRIDAY...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. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 13 seconds.
Northeast swell around 4 feet. Scattered showers.

$$

AMZ725-210830-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
347 PM AST Mon Nov 20 2017

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. 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 7 seconds. Isolated
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Scattered
showers.
.WEDNESDAY 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.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Scattered showers.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 12 seconds.
Northeast swell around 4 feet. Scattered showers.

$$

AMZ732-210830-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
347 PM AST Mon Nov 20 2017

.TONIGHT...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 8 seconds. Northeast
swell around 4 Feet. Isolated showers through the day.
.TUESDAY 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.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Scattered
showers.
.WEDNESDAY 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.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.
.FRIDAY...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. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds. East
swell around 4 feet. Isolated showers.

$$

AMZ735-210830-
Coastal Waters of Southern Puerto Rico out 10 NM-
347 PM AST Mon Nov 20 2017

.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 8 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
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 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
showers.
.WEDNESDAY 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.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.FRIDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
Period 8 seconds. Isolated showers.
.SATURDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
Period 8 seconds. Isolated showers.

$$

AMZ741-210830-
Mona Passage Southward to 17N-
347 PM AST Mon Nov 20 2017

.TONIGHT...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. Isolated showers through the day.
.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 through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds. Isolated
showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 12 seconds. Isolated
showers.

$$

AMZ742-210830-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
347 PM AST Mon Nov 20 2017

.TONIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers through the night.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 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 8 seconds. Isolated
showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. Isolated
thunderstorms. Scattered showers.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 11 seconds. Isolated showers.

$$

AMZ745-210830-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
347 PM AST Mon Nov 20 2017

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers through the night.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 10 seconds. Isolated showers.
.THURSDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 8 seconds. Scattered showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 feet or less. Dominant
Period 10 seconds. Isolated showers.
.SATURDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 11 seconds. Isolated showers.

$$


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