

140 

FZCA52 TJSJ 151931

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

331 PM AST Sat Aug 15 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.



AMZ700-160830-

331 PM AST Sat Aug 15 2020



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

Moderate to locally fresh trade winds will persist across most of 

the regional waters through the rest of the weekend, resulting in 

choppy seas. Tropical Storm Josephine will track well north of the 

region tonight through Sunday. This will result in seas of up to 7 

feet across portions of the offshore Atlantic waters. Scattered

showers and isolated thunderstorms are also expected as some of the 

outer moisture bands move across the area.





$$



AMZ710-160830-

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

331 PM AST Sat Aug 15 2020



...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM AST THIS EVENING

THROUGH SUNDAY AFTERNOON...



.TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 10 seconds. East

swell around 4 feet after midnight. Scattered showers and isolated

thunderstorms.

.SUNDAY...East winds 5 to 10 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 10 seconds. East

swell around 4 feet. Isolated thunderstorms in the morning.

Numerous showers through the day.

.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 5 to 7 feet

with occasional seas up to 9 feet. Dominant period 10 seconds.

Isolated showers.

.MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds.

Scattered showers.

.MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 8 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 8 seconds. North

swell around 4 feet. Isolated showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 8 seconds. North

swell around 4 feet. Scattered showers.

.THURSDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 8 seconds. North

swell around 4 feet. Scattered showers. Isolated thunderstorms.



$$



AMZ712-160830-

Coastal Waters of Northern Puerto Rico out 10 NM-

331 PM AST Sat Aug 15 2020



.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Scattered

showers and isolated thunderstorms.

.SUNDAY...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 day. Isolated thunderstorms in the afternoon.

.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 5 feet

with occasional seas up to 6 feet. Dominant period 10 seconds.

Isolated showers.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds.

Scattered showers through the day. Isolated thunderstorms in the

afternoon.

.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...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Scattered

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Isolated

thunderstorms. Scattered showers.

.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers.



$$



AMZ715-160830-

Coastal Waters of Northern USVI and Culebra out 10 NM-

331 PM AST Sat Aug 15 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



.TONIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds.

Scattered showers and isolated thunderstorms.

.SUNDAY...Southeast winds 5 to 10 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds.

Scattered showers.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds. Isolated

showers.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Isolated

thunderstorms in the morning. Scattered showers through the day.

.MONDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Scattered

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers. Isolated thunderstorms.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 8 seconds. Isolated

thunderstorms. Scattered showers.

.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

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

showers. Isolated thunderstorms.



$$



AMZ722-160830-

Anegada Passage Southward to 17N-

331 PM AST Sat Aug 15 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



.TONIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds. Isolated

showers.

.SUNDAY...Southeast winds 5 to 10 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds. Isolated

showers.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Scattered

showers.

.MONDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Isolated

showers.

.MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. North

swell around 4 feet. Scattered showers. Isolated thunderstorms.

.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 8 seconds. Isolated

thunderstorms. Scattered showers.

.THURSDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. Scattered

showers. Isolated thunderstorms.



$$



AMZ725-160830-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

331 PM AST Sat Aug 15 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



.TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds. Isolated

thunderstorms in the evening. Scattered showers through the night.

.SUNDAY...Southeast winds 5 to 10 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds.

Scattered showers.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds.

Scattered showers through the night. Isolated thunderstorms after

midnight.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Isolated

thunderstorms in the morning. Scattered showers through the day.

.MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. North

swell around 4 feet. Scattered showers. Isolated thunderstorms.

.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. Scattered

showers and isolated thunderstorms.

.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers. Isolated thunderstorms.



$$



AMZ732-160830-

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

331 PM AST Sat Aug 15 2020



.TONIGHT...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...Southeast 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.

Scattered showers through the night. Isolated thunderstorms after

midnight.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds.

Scattered showers.

.MONDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. North

swell around 4 feet. Scattered showers. Isolated thunderstorms.

.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. North

swell around 4 feet. Scattered showers and isolated thunderstorms.

.THURSDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. Scattered

showers. Isolated thunderstorms.



$$



AMZ735-160830-

Coastal Waters of Southern Puerto Rico out 10 NM-

331 PM AST Sat Aug 15 2020



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

occasional seas up to 5 feet. Dominant period 7 seconds. Isolated

showers.

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

Dominant period 10 seconds. Isolated showers.

.SUNDAY 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 through the night. Isolated thunderstorms after

midnight.

.MONDAY...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 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.

.TUESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Isolated

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers. Isolated thunderstorms.

.THURSDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers.



$$



AMZ741-160830-

Mona Passage Southward to 17N-

331 PM AST Sat Aug 15 2020



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

occasional seas up to 5 feet. Dominant period 7 seconds. Isolated

showers through the night.

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

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

showers.

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

Dominant period 10 seconds. Scattered 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.

.MONDAY NIGHT...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...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Isolated

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. North

swell around 4 feet. Scattered showers and isolated thunderstorms.

.THURSDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. Scattered

showers.



$$



AMZ742-160830-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

331 PM AST Sat Aug 15 2020



.TONIGHT...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.

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

Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers in

the morning, then isolated thunderstorms in the afternoon.

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

Dominant period 7 seconds. Isolated showers.

.MONDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 8 seconds. Scattered showers through the day.

Isolated thunderstorms in the afternoon.

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

occasional seas up to 5 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. Scattered

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 7 seconds. Isolated

thunderstorms, then scattered showers.

.THURSDAY...East winds 15 to 20 knots. Seas 2 to 4 feet with

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

thunderstorms, then isolated showers.



$$



AMZ745-160830-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

331 PM AST Sat Aug 15 2020



.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 7 seconds. Isolated showers through the night.

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

Dominant period 8 seconds. Isolated showers.

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

Dominant period 8 seconds. Isolated showers.

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

Dominant period 8 seconds. Isolated showers.

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

Dominant period 7 seconds. Isolated showers.

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

period 7 seconds. Isolated showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 2 to 4 feet with

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

showers.

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

occasional seas up to 5 feet. Dominant period 7 seconds. Isolated

showers.



$$

