

479 

FZCA52 TJSJ 101334

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

934 AM AST Sat Oct 10 2020



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.



AMZ700-110230-

934 AM AST Sat Oct 10 2020



.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...

A ridge of high pressure across the western Atlantic and a tropical 

wave crossing the Lesser Antilles will aid in creating light to 

gentle east to northeast trade winds today. Gentle seas are forecast

to persist through the weekend and become more tranquil by mid week. 

The tropical wave is forecast to move across the region today 

through Sunday with an increased chance of showers and thunderstorms.



$$



AMZ710-110230-

Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 8 seconds. Isolated thunderstorms late in the

morning. Scattered showers through the day.

.TONIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 8 seconds. Scattered

showers through the night. Isolated thunderstorms after midnight.

.SUNDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds. Isolated

showers.

.SUNDAY 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.

.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds.

Scattered showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Scattered showers.



$$



AMZ712-110230-

Coastal Waters of Northern Puerto Rico out 10 NM-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...East winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 8 seconds. Scattered showers and isolated

thunderstorms.

.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers and isolated thunderstorms.

.SUNDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated showers.

.MONDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds.

Scattered showers.

.TUESDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 8 seconds. Scattered showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 7 seconds. Isolated showers.



$$



AMZ715-110230-

Coastal Waters of Northern USVI and Culebra out 10 NM-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Scattered showers.

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers and isolated thunderstorms.

.SUNDAY...East winds around 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Scattered showers.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Scattered showers.

.MONDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Scattered showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 10 seconds. Scattered showers.



$$



AMZ722-110230-

Anegada Passage Southward to 17N-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated showers.

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 8 seconds. Scattered

showers.

.SUNDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds. Isolated

showers.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated showers.

.MONDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Isolated showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Isolated showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Isolated showers.



$$



AMZ725-110230-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 8 seconds. Scattered showers through the day.

Isolated thunderstorms in the afternoon.

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers and isolated thunderstorms.

.SUNDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Isolated thunderstorms in the morning. Scattered

showers through the day.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Scattered showers.

.MONDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Scattered showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 10 seconds. Scattered showers.



$$



AMZ732-110230-

Caribbean Waters of Puerto Rico from 10 NM to 17N-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Scattered showers.

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers through the night. Isolated

thunderstorms after midnight.

.SUNDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 7 seconds. Scattered showers.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 8 seconds. Isolated showers.

.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Scattered showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Scattered showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 10 seconds. Isolated showers.



$$



AMZ735-110230-

Coastal Waters of Southern Puerto Rico out 10 NM-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 7 seconds. Scattered showers.

.TONIGHT...East winds 5 to 10 knots. Seas 2 feet or less. Dominant

period 7 seconds. Scattered showers through the night. Isolated

thunderstorms after midnight.

.SUNDAY...East winds 10 to 15 knots. Seas 2 feet or less. Dominant

period 7 seconds. Isolated showers.

.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 7 seconds. Isolated showers.

.MONDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 7 seconds. Scattered showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 7 seconds. Scattered showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 7 seconds. Isolated showers.



$$



AMZ741-110230-

Mona Passage Southward to 17N-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated thunderstorms late in the

morning.

.TONIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Isolated showers through the night.

.SUNDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Isolated thunderstorms in the morning.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated thunderstorms.

.MONDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Isolated showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Isolated showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 7 seconds. Isolated showers.



$$



AMZ742-110230-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...Southeast winds 5 to 10 knots veering northwest

in the afternoon. Seas 1 to 3 feet. Dominant period 10 seconds.

Numerous showers and isolated thunderstorms.

.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Isolated showers.

.SUNDAY...East winds 5 to 10 knots backing north in the afternoon.

Seas 1 to 3 feet. Dominant period 8 seconds. Numerous showers

through the day. Isolated thunderstorms in the afternoon.

.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated showers.

.MONDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Isolated thunderstorms, then isolated showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Isolated showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 7 seconds. Isolated thunderstorms, then isolated

showers.



$$



AMZ745-110230-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

934 AM AST Sat Oct 10 2020



.REST OF TODAY...Southeast winds 5 to 10 knots. Seas 2 feet or

less. Dominant period 7 seconds. Scattered showers through the

day. Isolated thunderstorms in the afternoon.

.TONIGHT...East winds 5 to 10 knots. Seas 2 feet or less. Dominant

period 8 seconds. Isolated showers.

.SUNDAY...East winds 5 to 10 knots. Seas 2 feet or less. Dominant

period 8 seconds. Scattered showers through the day. Isolated

thunderstorms in the afternoon.

.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 10 seconds. Scattered showers.

.MONDAY...East winds 5 to 10 knots. Seas 2 feet or less. Dominant

period 10 seconds. Isolated showers.

.TUESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Isolated showers.

.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 7 seconds. Isolated showers.



$$

