Coastal Waters Forecast
Issued by NWS San Juan, PR

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000
FZCA52 TJSJ 201304
CWFSJU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE SAN JUAN PR
904 AM AST FRI JAN 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.

AMZ700-210130-
904 AM AST FRI JAN 20 2017

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
SURFACE HIGH PRESSURE OVER THE WESTERN ATLANTIC AND AN AREA OF
LOW PRESSURE ACROSS THE NORTH CENTRAL ATLANTIC WILL CREATE A
GENTLE NORTH TO NORTHEAST FLOW TODAY AND SATURDAY. THE REMNANTS
OF A COLD FRONT ARE EXPECTED TO SINK SOUTHWARD ACROSS THE LOCAL
ATLANTIC WATERS BY SUNDAY, AS HIGH PRESSURE WILL SPREAD ACROSS THE
WEST AND SOUTHWEST ATLANTIC. BY SUNDAY AND MONDAY THE HIGH
PRESSURE RIDGE WILL SINK FARTHER SOUTH ACROSS THE NORTHEASTERN
CARIBBEAN AND LOCAL WINDS WILL BECOME MORE SOUTHERLY.

$$

AMZ710-210130-
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...NORTH 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 DAY.
.TONIGHT...NORTH WINDS 5 TO 10 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...NORTH WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 10 SECONDS. NORTH
SWELL 4 TO 5 FEET. SCATTERED SHOWERS.
.SATURDAY NIGHT...NORTHEAST 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. SCATTERED SHOWERS.
.SUNDAY...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.
.MONDAY...SOUTH WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 8 FEET. DOMINANT PERIOD 12 SECONDS. NORTH
SWELL 4 TO 5 FEET. ISOLATED SHOWERS.
.TUESDAY...WEST WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 8 FEET. DOMINANT PERIOD 11 SECONDS. NORTH
SWELL 4 TO 5 FEET. ISOLATED SHOWERS.

$$

AMZ712-210130-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...SOUTHEAST WINDS 5 TO 10 KNOTS BACKING NORTH IN
THE AFTERNOON. SEAS 1 TO 3 FEET. DOMINANT PERIOD 8 SECONDS.
ISOLATED SHOWERS.
.TONIGHT...NORTH WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 11 SECONDS. NORTH
SWELL AROUND 4 FEET AFTER MIDNIGHT. SCATTERED SHOWERS.
.SATURDAY...NORTH 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.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET
WITH OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 10 SECONDS.
SCATTERED SHOWERS.
.SUNDAY...EAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 11 SECONDS. NORTH
SWELL 4 TO 5 FEET. SCATTERED SHOWERS.
.MONDAY...SOUTH WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 8 FEET. DOMINANT PERIOD 12 SECONDS. NORTH
SWELL 4 TO 5 FEET. ISOLATED SHOWERS.
.TUESDAY...WEST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 12 SECONDS. NORTH
SWELL AROUND 4 FEET. ISOLATED SHOWERS.

$$

AMZ715-210130-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 8 SECONDS. ISOLATED SHOWERS.
.TONIGHT...NORTH 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 AFTER MIDNIGHT. SCATTERED SHOWERS.
.SATURDAY...NORTH 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.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET
WITH OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 10 SECONDS.
SCATTERED SHOWERS.
.SUNDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 12 SECONDS. NORTH
SWELL 4 TO 5 FEET. SCATTERED SHOWERS.
.MONDAY...SOUTHEAST 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.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET WITH
OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 11 SECONDS. NORTH
SWELL AROUND 4 FEET. SCATTERED SHOWERS.

$$

AMZ722-210130-
ANEGADA PASSAGE SOUTHWARD TO 17N-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 8 SECONDS. ISOLATED SHOWERS.
.TONIGHT...NORTH 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. ISOLATED SHOWERS THROUGH THE
NIGHT.
.SATURDAY...NORTHEAST 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 SHOWERS THROUGH THE DAY.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET
WITH OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 10 SECONDS.
ISOLATED SHOWERS.
.SUNDAY...EAST WINDS 10 TO 15 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.
.MONDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 8 FEET. DOMINANT PERIOD 12 SECONDS. NORTH
SWELL 4 TO 5 FEET. SCATTERED SHOWERS.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 12 SECONDS. NORTH
SWELL AROUND 4 FEET. SCATTERED SHOWERS.

$$

AMZ725-210130-
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO OUT
10 NM-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 7 SECONDS.
.TONIGHT...NORTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET WITH
OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 10 SECONDS. ISOLATED
SHOWERS.
.SATURDAY...NORTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET WITH
OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 10 SECONDS.
SCATTERED SHOWERS.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET
WITH OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 10 SECONDS.
SCATTERED SHOWERS.
.SUNDAY...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.
.MONDAY...SOUTHEAST WINDS 10 TO 15 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.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET WITH
OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 11 SECONDS.
SCATTERED SHOWERS.

$$

AMZ732-210130-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 8 SECONDS. ISOLATED SHOWERS.
.TONIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 10 SECONDS.
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 10 SECONDS. ISOLATED SHOWERS THROUGH THE DAY.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 10 SECONDS. ISOLATED SHOWERS.
.SUNDAY...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. ISOLATED SHOWERS.
.MONDAY...SOUTHEAST WINDS 10 TO 15 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.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 12 SECONDS.
SOUTHEAST SWELL AROUND 4 FEET. ISOLATED SHOWERS.

$$

AMZ735-210130-
COASTAL WATERS OF SOUTHERN PUERTO RICO OUT 10 NM-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...EAST WINDS 5 TO 10 KNOTS VEERING SOUTHEAST BY MID
MORNING. SEAS 2 FEET OR LESS. DOMINANT PERIOD 7 SECONDS.
.TONIGHT...NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET. DOMINANT
PERIOD 10 SECONDS.
.SATURDAY...NORTH WINDS 5 TO 10 KNOTS BECOMING SOUTHWEST IN THE
AFTERNOON. SEAS 2 TO 4 FEET WITH OCCASIONAL SEAS UP TO 5 FEET.
DOMINANT PERIOD 10 SECONDS.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET
WITH OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 8 SECONDS.
ISOLATED SHOWERS.
.SUNDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 8 SECONDS. ISOLATED SHOWERS.
.MONDAY...SOUTH WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET. DOMINANT
PERIOD 11 SECONDS. ISOLATED SHOWERS.
.TUESDAY...WEST WINDS 5 TO 10 KNOTS. SEAS 2 FEET OR LESS. DOMINANT
PERIOD 11 SECONDS. ISOLATED SHOWERS.

$$

AMZ741-210130-
MONA PASSAGE SOUTHWARD TO 17N-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 8 SECONDS.
.TONIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 11 SECONDS. NORTH
SWELL AROUND 4 FEET AFTER MIDNIGHT.
.SATURDAY...NORTH 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.
.SATURDAY NIGHT...NORTHEAST 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. ISOLATED SHOWERS.
.SUNDAY...EAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 11 SECONDS. NORTH
SWELL AROUND 4 FEET. ISOLATED SHOWERS.
.MONDAY...SOUTH 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.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 12 SECONDS.
NORTHEAST SWELL AROUND 4 FEET. ISOLATED SHOWERS.

$$

AMZ742-210130-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 7 SECONDS.
.TONIGHT...NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. DOMINANT PERIOD 11 SECONDS. NORTH
SWELL AROUND 4 FEET AFTER MIDNIGHT. ISOLATED SHOWERS THROUGH THE
NIGHT.
.SATURDAY...NORTH 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.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET
WITH OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 10 SECONDS.
SCATTERED SHOWERS.
.SUNDAY...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. SCATTERED SHOWERS.
.MONDAY...SOUTH 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.
.TUESDAY...WEST 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.

$$

AMZ745-210130-
COASTAL WATERS OF SOUTHWESTERN PUERTO RICO OUT 10 NM-
904 AM AST FRI JAN 20 2017

.REST OF TODAY...EAST WINDS 5 TO 10 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. SEAS 1 TO 3 FEET. DOMINANT PERIOD 7 SECONDS.
.TONIGHT...NORTHEAST 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 AFTER MIDNIGHT.
.SATURDAY...NORTH 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.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET
WITH OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 10 SECONDS.
ISOLATED SHOWERS.
.SUNDAY...EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET WITH
OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 12 SECONDS. ISOLATED
SHOWERS.
.MONDAY...SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET WITH
OCCASIONAL SEAS UP TO 5 FEET. DOMINANT PERIOD 12 SECONDS. ISOLATED
SHOWERS.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.
DOMINANT PERIOD 12 SECONDS. ISOLATED SHOWERS.

$$


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