

095 

FZCA52 TJSJ 150807

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

407 AM AST Thu Oct 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.



AMZ700-152130-

407 AM AST Thu Oct 15 2020



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

High pressure across the western Atlantic and a broad surface trough

extending across the region from the central and eastern Caribbean 

will maintain light to moderate east to southeast trade winds for the

next several days. A tropical wave near the Lesser Antilles will

move across the regional waters later today, increasing seas and 

winds through at least late Friday night. Showers and thunderstorms 

are expected through the end of the workweek.



$$



AMZ710-152130-

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

407 AM AST Thu Oct 15 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH 2 PM AST TODAY...  

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM AST THIS AFTERNOON 

THROUGH FRIDAY MORNING...



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

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

showers and isolated thunderstorms.

.TONIGHT...Southeast winds 15 to 20 knots. Seas 5 to 7 feet with

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

swell around 4 feet. Numerous showers and isolated thunderstorms.

.FRIDAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet with

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

showers and isolated thunderstorms.

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

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

thunderstorms through the night. Scattered showers after midnight.

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

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

showers.

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

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

showers.

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

Dominant period 10 seconds. Isolated showers.



$$



AMZ712-152130-

Coastal Waters of Northern Puerto Rico out 10 NM-

407 AM AST Thu Oct 15 2020



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

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

showers through the day. Isolated thunderstorms in the afternoon.

.TONIGHT...Southeast winds 15 to 20 knots. Seas 2 to 4 feet with

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

showers and isolated thunderstorms.

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

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

showers and isolated thunderstorms.

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

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

thunderstorms in the evening. Scattered showers through the night.

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

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

thunderstorms. Scattered showers.

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

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

showers.

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

Dominant period 10 seconds. Isolated showers.



$$



AMZ715-152130-

Coastal Waters of Northern USVI and Culebra out 10 NM-

407 AM AST Thu Oct 15 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



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

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

showers and isolated thunderstorms.

.TONIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet with

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

showers and isolated thunderstorms.

.FRIDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet with

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

showers and isolated thunderstorms.

.FRIDAY 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.

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

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

showers.

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

Dominant period 10 seconds. Isolated showers.

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

period 10 seconds. Isolated showers.



$$



AMZ722-152130-

Anegada Passage Southward to 17N-

407 AM AST Thu Oct 15 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH 2 PM AST TODAY...

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM AST THIS AFTERNOON

THROUGH LATE TONIGHT...



.TODAY...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.

.TONIGHT...Southeast winds 15 to 20 knots. Seas 5 to 7 feet with

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

showers and isolated thunderstorms.

.FRIDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet with

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

thunderstorms through the day. Scattered showers in the afternoon.

.FRIDAY 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.

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

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

showers.

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

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

showers.

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

Dominant period 8 seconds. Isolated showers.



$$



AMZ725-152130-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

407 AM AST Thu Oct 15 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



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

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

showers and isolated thunderstorms.

.TONIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet with

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

showers and isolated thunderstorms.

.FRIDAY...Southeast winds 10 to 15 knots. Seas 4 to 6 feet with

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

showers and isolated thunderstorms.

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

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

showers.

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

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

showers.

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

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

showers.

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

Dominant period 8 seconds. Isolated showers.



$$



AMZ732-152130-

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

407 AM AST Thu Oct 15 2020



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

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

showers and isolated thunderstorms.

.TONIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet with

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

showers and isolated thunderstorms.

.FRIDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet with

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

showers and isolated thunderstorms.

.FRIDAY NIGHT...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.

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

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

showers.

.SUNDAY...Northeast 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 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Isolated showers.



$$



AMZ735-152130-

Coastal Waters of Southern Puerto Rico out 10 NM-

407 AM AST Thu Oct 15 2020



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

period 7 seconds. Scattered showers through the day. Isolated

thunderstorms in the afternoon.

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

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

showers and isolated thunderstorms.

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

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

showers and isolated thunderstorms.

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

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

thunderstorms in the evening. Scattered showers through the night.

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

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

showers.

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

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

showers.

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

Dominant period 7 seconds. Isolated showers.



$$



AMZ741-152130-

Mona Passage Southward to 17N-

407 AM AST Thu Oct 15 2020



.TODAY...East winds 10 to 15 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. Isolated thunderstorms in the evening. Scattered

showers through the night.

.FRIDAY...Southeast winds 15 to 20 knots. Seas 2 to 4 feet with

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

showers and isolated thunderstorms.

.FRIDAY NIGHT...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.

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

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

showers.

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

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

showers.

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

Dominant period 10 seconds. Isolated showers.



$$



AMZ742-152130-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

407 AM AST Thu Oct 15 2020



.TODAY...Northeast winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 7 seconds. Isolated thunderstorms in the

afternoon.

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

period 7 seconds. Isolated thunderstorms in the evening. Scattered

showers through the night.

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

period 7 seconds. Scattered showers through the day. Isolated

thunderstorms in the afternoon.

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

Dominant period 7 seconds. Isolated thunderstorms in the evening.

Scattered showers through the night.

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

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

thunderstorms, then isolated showers.

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

Dominant period 7 seconds. Isolated showers.

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

period 10 seconds. Isolated showers.



$$



AMZ745-152130-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

407 AM AST Thu Oct 15 2020



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

period 7 seconds. Isolated thunderstorms in the afternoon.

.TONIGHT...Northeast winds 10 to 15 knots veering east after

midnight. Seas 2 feet or less. Dominant period 7 seconds. Isolated

thunderstorms in the evening. Scattered showers through the night.

.FRIDAY...Southeast winds 15 to 20 knots. Seas 1 to 3 feet.

Dominant period 7 seconds. Scattered showers through the day.

Isolated thunderstorms in the afternoon.

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

Dominant period 7 seconds. Isolated thunderstorms in the evening.

Scattered showers through the night.

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

period 7 seconds. Scattered showers.

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

Dominant period 7 seconds. Isolated showers.

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

period 7 seconds. Isolated showers.



$$

