Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 121353
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
953 AM AST Tue Dec 12 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.

AMZ700-130215-
953 AM AST Tue Dec 12 2017

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface high pressure across the east central Atlantic and frontal
boundary to our northwest will maintain light to moderate
southeasterly winds across the local area. On Wednesday winds will
become even lighter and more southerly. On Thursday, an east-west
ridge will build across the Atlantic between 20 and 30 degrees north
to maintain easterly trade winds into the weekend. A northerly swell
will arrive by Thursday night.

$$

AMZ710-130215-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...Southeast 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.
.TONIGHT...South winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Northeast
swell around 4 feet in the evening. Isolated showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.
.WEDNESDAY NIGHT...Southeast 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.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds. North
swell 4 to 5 feet. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 10 seconds. North
swell 4 to 6 feet. Isolated showers.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds. North
swell around 4 feet. Isolated showers.

$$

AMZ712-130215-
Coastal Waters of Northern Puerto Rico out 10 NM-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...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.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 9 seconds. Isolated
showers through the night.
.WEDNESDAY...Southeast winds 5 to 10 knots backing northeast in
the afternoon. Seas 2 to 4 feet with occasional seas up to 5 feet.
Dominant Period 8 seconds.
.WEDNESDAY NIGHT...Southeast 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 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell 4 to 5 feet. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northwest swell 4 to 5 feet. Isolated showers.
.SATURDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. Isolated
showers.

$$

AMZ715-130215-
Coastal Waters of Northern USVI and Culebra out 10 NM-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 11 seconds.
Northeast swell around 4 feet. Scattered showers.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.WEDNESDAY NIGHT...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 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. North
swell 4 to 5 feet. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northwest swell around 4 feet. Isolated showers.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.

$$

AMZ722-130215-
Anegada Passage Southward to 17N-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 11 seconds.
Northeast swell around 4 feet. Scattered showers.
.TONIGHT...South 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 in the evening. Scattered showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.WEDNESDAY NIGHT...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 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. Isolated showers.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds. North
swell 4 to 5 feet. Isolated showers.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds. North
swell around 4 feet. Isolated showers.

$$

AMZ725-130215-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 11 seconds.
Scattered showers.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.WEDNESDAY NIGHT...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 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. East
swell around 4 feet. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. Isolated
showers.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. East
swell around 4 feet. Isolated showers.

$$

AMZ732-130215-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 11 seconds.
Scattered showers.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.WEDNESDAY NIGHT...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 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. 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...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds. North
swell 4 to 5 feet. Isolated showers.

$$

AMZ735-130215-
Coastal Waters of Southern Puerto Rico out 10 NM-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 8 seconds.
.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 8 seconds. Isolated showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 feet or less.
Dominant Period 10 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet or less.
Dominant Period 10 seconds. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
Period 8 seconds. Isolated showers.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.

$$

AMZ741-130215-
Mona Passage Southward to 17N-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 11 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.WEDNESDAY NIGHT...Southeast 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 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds. North
swell 4 to 5 feet. Isolated showers.
.FRIDAY...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.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. North
swell around 4 feet. Isolated showers.

$$

AMZ742-130215-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers through the night.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds.
.WEDNESDAY NIGHT...Southeast 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 11 seconds. North
swell around 4 feet. Isolated showers.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northwest swell around 4 feet. Isolated showers.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.

$$

AMZ745-130215-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
953 AM AST Tue Dec 12 2017

.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 10 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 8 seconds. Isolated showers through the night.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 8 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 7 seconds. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 12 seconds. Isolated showers.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 10 seconds. Isolated showers.

$$



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