

127 

FZCA52 TJSJ 100842

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

442 AM AST Thu Sep 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.



AMZ700-102130-

442 AM AST Thu Sep 10 2020



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

A surface high pressure ridge will continue north of the area for 

the next several days. Based on the latest guidance from the National

Hurricane Center, Tropical Storm Paulette over the central tropical 

Atlantic is forecast to move west northwest into the west Atlantic 

over the weekend into early next week. This expected forecast track 

will promote light to moderate northeast trades today through the 

weekend. Seas will gradually build later today and become hazardous 

due to a northeasterly swell over the offshore Atlantic and portions

of the Anegada passage. 



$$



AMZ710-102130-

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

442 AM AST Thu Sep 10 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION TONIGHT...



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

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

showers through the day.

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

occasional seas up to 8 feet. Dominant period 11 seconds. East

swell 4 to 5 feet after midnight. Scattered showers.

.FRIDAY...Northeast winds 5 to 10 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 11 seconds. East

swell 4 to 7 feet. Isolated showers.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 6 to 8 feet

with occasional seas up to 10 feet. Dominant period 11 seconds.

East swell 4 to 7 feet. Scattered showers.

.SATURDAY...East winds 5 to 10 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 11 seconds.

Northeast swell 4 to 7 feet. Scattered showers.

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

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

Northeast swell 4 to 5 feet. Isolated showers.

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

occasional seas up to 6 feet. Dominant period 11 seconds.

Northeast swell around 4 feet. Isolated showers.



$$



AMZ712-102130-

Coastal Waters of Northern Puerto Rico out 10 NM-

442 AM AST Thu Sep 10 2020



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

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

showers through the day.

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

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

Scattered 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.

.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas 4 to 6 feet

with occasional seas up to 8 feet. Dominant period 11 seconds.

Northeast swell 4 to 5 feet. Scattered showers.

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

occasional seas up to 9 feet. Dominant period 11 seconds.

Northeast swell 4 to 6 feet. 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.

Northeast swell 4 to 6 feet. Isolated showers.

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

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

showers.



$$



AMZ715-102130-

Coastal Waters of Northern USVI and Culebra out 10 NM-

442 AM AST Thu Sep 10 2020



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

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

Scattered showers.

.TONIGHT...Northeast winds around 10 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 11 seconds.

Northeast swell around 4 feet after midnight. Scattered showers.

.FRIDAY...Northeast winds 5 to 10 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 11 seconds.

Northeast swell 4 to 6 feet. Isolated showers.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 5 to 7 feet

with occasional seas up to 9 feet. Dominant period 11 seconds.

Northeast swell 4 to 6 feet. Scattered showers.

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

occasional seas up to 8 feet. Dominant period 11 seconds.

Northeast swell 4 to 6 feet. Scattered showers.

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

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

Scattered showers.

.MONDAY...Southeast 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. Scattered showers.



$$



AMZ722-102130-

Anegada Passage Southward to 17N-

442 AM AST Thu Sep 10 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION TONIGHT...



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

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

showers through the day.

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

occasional seas up to 8 feet. Dominant period 11 seconds. East

swell 4 to 5 feet after midnight. Isolated showers.

.FRIDAY...Northeast winds 5 to 10 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 12 seconds.

Northeast swell 4 to 6 feet. Isolated showers.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 5 to 7 feet

with occasional seas up to 9 feet. Dominant period 12 seconds.

Northeast swell 4 to 7 feet. Isolated showers.

.SATURDAY...South winds 5 to 10 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 11 seconds.

Northeast swell 4 to 6 feet. Isolated showers.

.SUNDAY...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 around 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.



$$



AMZ725-102130-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

442 AM AST Thu Sep 10 2020



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

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

Scattered showers.

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

occasional seas up to 6 feet. Dominant period 11 seconds. East

swell 4 to 5 feet after midnight. Scattered showers.

.FRIDAY...Northeast winds 5 to 10 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 11 seconds. East

swell 4 to 6 feet. Isolated showers.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 5 to 7 feet

with occasional seas up to 9 feet. Dominant period 11 seconds.

East swell 4 to 7 feet. Scattered showers.

.SATURDAY...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 6 feet. 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.

Scattered showers.

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

occasional seas up to 6 feet. Dominant period 12 seconds. East

swell around 4 feet. Scattered showers.



$$



AMZ732-102130-

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

442 AM AST Thu Sep 10 2020



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

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

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 11 seconds. Isolated

showers.

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

occasional seas up to 6 feet. Dominant period 11 seconds. East

swell around 4 feet. Isolated showers.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 4 to 6 feet

with occasional seas up to 8 feet. Dominant period 11 seconds.

East swell 4 to 5 feet. Isolated showers.

.SATURDAY...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.

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

occasional seas up to 6 feet. Dominant period 11 seconds. Isolated

showers.

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

occasional seas up to 5 feet. Dominant period 11 seconds. Isolated

showers.



$$



AMZ735-102130-

Coastal Waters of Southern Puerto Rico out 10 NM-

442 AM AST Thu Sep 10 2020



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

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

showers.

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

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

showers through the night.

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

period 10 seconds. Scattered showers through the day. Isolated

thunderstorms in the afternoon.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet

with occasional seas up to 5 feet. Dominant period 11 seconds.

Scattered showers.

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

occasional seas up to 5 feet. Dominant period 11 seconds. Isolated

showers.

.SUNDAY...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 2 feet or less. Dominant

period 12 seconds. Isolated showers.



$$



AMZ741-102130-

Mona Passage Southward to 17N-

442 AM AST Thu Sep 10 2020



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

period 7 seconds. Isolated showers through the day.

.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 through the night.

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

period 10 seconds. Isolated showers.

.FRIDAY 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.

.SATURDAY...Northeast 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.

.SUNDAY...Southeast 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.

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

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

showers.



$$



AMZ742-102130-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

442 AM AST Thu Sep 10 2020



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

period 7 seconds.

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

period 7 seconds. Isolated showers through the night.

.FRIDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 7 seconds. Isolated showers in the morning, then

isolated thunderstorms in the afternoon.

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

Dominant period 7 seconds. Isolated showers.

.SATURDAY...East 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. Isolated showers.

.SUNDAY...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. 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. Isolated

showers.



$$



AMZ745-102130-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

442 AM AST Thu Sep 10 2020



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

Dominant period 10 seconds. Isolated thunderstorms in the

afternoon.

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

period 10 seconds.

.FRIDAY...East winds 5 to 10 knots veering west in the afternoon.

Seas 2 feet or less. Dominant period 10 seconds. Scattered showers

through the day. Isolated thunderstorms in the afternoon.

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

Dominant period 10 seconds. Scattered showers.

.SATURDAY...East winds 5 to 10 knots. Seas 1 foot or less.

Dominant period 10 seconds. Scattered showers.

.SUNDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.

Dominant period 11 seconds. Isolated showers.

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

period 7 seconds. Isolated showers.



$$

