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627 

FZCA52 TJSJ 171422 AAA

CWFSJU



Coastal Waters Forecast...UPDATED

National Weather Service San Juan PR

1022 AM AST Thu Sep 17 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.



AMZ700-180315-

1022 AM AST Thu Sep 17 2020



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

Moderate northeast winds will persist across the regional waters. 

The remnants of Rene will move from the Atlantic waters and across 

the local area, increasing shower and thunderstorm activity. Winds 

will decrease and become more southerly during the weekend as 

Hurricane Teddy moves northwestward across the Atlantic, and stays 

far away to our north. However, northeasterly swells generated from 

Teddy are forecast to move across the Atlantic and eastern waters of 

the islands this afternoon, deteriorating the marine conditions and 

becoming hazardous through Monday.



$$



AMZ710-180315-

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

1022 AM AST Thu Sep 17 2020



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

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

THROUGH MONDAY MORNING...



.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 6 to 8 feet

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

Northeast swell 4 to 8 feet. Scattered showers and isolated

thunderstorms.

.TONIGHT...Northeast winds 10 to 15 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 12 seconds. East

swell 4 to 8 feet. Isolated thunderstorms in the evening.

Scattered showers through the night.

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

occasional seas up to 11 feet. Dominant period 13 seconds. East

swell 4 to 9 feet. Scattered showers.

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

with occasional seas up to 11 feet. Dominant period 13 seconds.

East swell 5 to 9 feet. Scattered showers.

.SATURDAY...Southeast winds 5 to 10 knots. Seas 8 to 10 feet with

occasional seas up to 11 feet. Dominant period 13 seconds.

Northeast swell 5 to 9 feet. Isolated showers.

.SUNDAY...South winds 5 to 10 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 13 seconds.

Northeast swell 5 to 8 feet. Isolated showers.

.MONDAY...Southeast winds 5 to 10 knots. Seas 5 to 7 feet with

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

swell 5 to 6 feet. Scattered showers.



$$



AMZ712-180315-

Coastal Waters of Northern Puerto Rico out 10 NM-

1022 AM AST Thu Sep 17 2020



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

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

Northeast swell around 4 feet. Scattered showers and isolated

thunderstorms.

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

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

Northeast swell 4 to 5 feet. Numerous showers and isolated

thunderstorms.

.FRIDAY...Northeast 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. Isolated showers.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots veering southeast

after midnight. Seas 4 to 6 feet with occasional seas up to 8

feet. Dominant period 12 seconds. Northeast swell 4 to 5 feet.

Scattered showers.

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

occasional seas up to 10 feet. Dominant period 13 seconds.

Northeast swell 4 to 8 feet. Isolated showers.

.SUNDAY...South winds 5 to 10 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 13 seconds.

Northeast swell 5 to 8 feet. Scattered showers.

.MONDAY...Southeast winds 5 to 10 knots. Seas 5 to 7 feet with

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

swell 5 to 6 feet. Isolated thunderstorms. Scattered showers.



$$



AMZ715-180315-

Coastal Waters of Northern USVI and Culebra out 10 NM-

1022 AM AST Thu Sep 17 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH 8 PM AST... 

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

LATE SUNDAY NIGHT...



.REST OF TODAY...Northeast 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. Scattered showers and isolated

thunderstorms.

.TONIGHT...East winds 10 to 15 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 12 seconds. North

swell 4 to 7 feet. Isolated thunderstorms in the evening.

Scattered showers through the night.

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

occasional seas up to 10 feet. Dominant period 12 seconds. North

swell 4 to 8 feet. Isolated showers.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots veering east after

midnight. Seas 6 to 8 feet with occasional seas up to 10 feet.

Dominant period 13 seconds. North swell 4 to 8 feet. Isolated

showers.

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

occasional seas up to 9 feet. Dominant period 13 seconds.

Northeast swell 4 to 8 feet. Scattered showers.

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

occasional seas up to 9 feet. Dominant period 13 seconds. North

swell 4 to 7 feet. Scattered showers.

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

occasional seas up to 8 feet. Dominant period 12 seconds. North

swell 4 to 5 feet. Isolated thunderstorms. Scattered showers.



$$



AMZ722-180315-

Anegada Passage Southward to 17N-

1022 AM AST Thu Sep 17 2020



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

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

THROUGH SUNDAY AFTERNOON...



.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 5 to 7 feet

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

Northeast swell 4 to 7 feet. Scattered showers and isolated

thunderstorms through the day.

.TONIGHT...East winds 10 to 15 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 13 seconds. East

swell 4 to 8 feet. Isolated thunderstorms in the evening.

Scattered showers through the night.

.FRIDAY...East winds 5 to 10 knots. Seas 8 to 10 feet with

occasional seas up to 11 feet. Dominant period 13 seconds.

Northeast swell 4 to 8 feet. Isolated showers.

.FRIDAY NIGHT...Northeast winds 5 to 10 knots veering southeast

after midnight. Seas 8 to 10 feet with occasional seas up to 11

feet. Dominant period 13 seconds. Northeast swell 4 to 9 feet.

Isolated showers.

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

occasional seas up to 10 feet. Dominant period 13 seconds.

Northeast swell 4 to 9 feet. Isolated showers.

.SUNDAY...South winds 5 to 10 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 12 seconds. North

swell 4 to 7 feet. Scattered showers.

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

occasional seas up to 8 feet. Dominant period 12 seconds. North

swell 4 to 5 feet. Isolated thunderstorms. Scattered showers.



$$



AMZ725-180315-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

1022 AM AST Thu Sep 17 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION THROUGH 8 PM AST... 

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

THROUGH SUNDAY AFTERNOON...



.REST OF TODAY...Northeast 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. Isolated thunderstorms through the day.

Scattered showers in the afternoon.

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

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

swell 4 to 7 feet. Isolated thunderstorms in the evening.

Scattered showers through the night.

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

occasional seas up to 10 feet. Dominant period 12 seconds. East

swell 4 to 7 feet. Isolated showers.

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

occasional seas up to 10 feet. Dominant period 13 seconds. East

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 12 seconds.

Northeast swell 4 to 7 feet. Scattered showers.

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

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

Northeast swell 4 to 5 feet. Scattered showers.

.MONDAY...South 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. Isolated thunderstorms. Scattered showers.



$$



AMZ732-180315-

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

1022 AM AST Thu Sep 17 2020



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

THROUGH SUNDAY AFTERNOON...



.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet

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

East swell around 4 feet in the afternoon. Isolated thunderstorms

through the day.

.TONIGHT...East winds 10 to 15 knots. Seas 4 to 7 feet with 

occasional seas up to 8 feet. Dominant period 12 seconds. East swell 

4 to 5 feet. Scattered showers and isolated thunderstorms.

.FRIDAY...East winds 10 to 15 knots. Seas 4 to 7 feet with 

occasional seas up to 8 feet. Dominant period 12 seconds. East swell 

4 to 5 feet. Isolated showers.

.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 5 to 7 feet with

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

swell 4 to 6 feet. Isolated showers through the night.

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

occasional seas up to 9 feet. Dominant period 13 seconds.

Northeast swell 4 to 7 feet. Isolated showers.

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

occasional seas up to 8 feet. Dominant period 12 seconds. East

swell 4 to 7 feet. 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.

Southeast swell around 4 feet. Isolated thunderstorms. Scattered

showers.



$$



AMZ735-180315-

Coastal Waters of Southern Puerto Rico out 10 NM-

1022 AM AST Thu Sep 17 2020



.REST OF TODAY...Southeast 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...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with

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

thunderstorms in the evening. Scattered showers through the night.

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

occasional seas up to 5 feet. Dominant period 12 seconds. Isolated

showers.

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

Dominant period 12 seconds. Scattered showers.

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

occasional seas up to 5 feet. Dominant period 12 seconds. East

swell around 4 feet. Isolated showers.

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

Dominant period 11 seconds. Scattered showers.

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

Dominant period 11 seconds. Isolated showers.



$$



AMZ741-180315-

Mona Passage Southward to 17N-

1022 AM AST Thu Sep 17 2020



.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet

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

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

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

Northeast swell around 4 feet after midnight. Isolated

thunderstorms in the evening.

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

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

Northeast swell around 4 feet. Isolated thunderstorms in the

morning. Scattered showers through the day.

.FRIDAY NIGHT...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.

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

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

Northeast swell 4 to 7 feet. Isolated showers.

.MONDAY...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 7 feet. Isolated showers.



$$



AMZ742-180315-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

1022 AM AST Thu Sep 17 2020



.REST OF TODAY...Northeast 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 day.

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

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

thunderstorms in the evening, then isolated showers after

midnight.

.FRIDAY...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.

.FRIDAY NIGHT...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. Scattered showers.

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

occasional seas up to 5 feet. Dominant period 12 seconds.

Northeast swell 4 to 5 feet. Isolated showers.

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

occasional seas up to 8 feet. Dominant period 12 seconds.

Northeast swell 4 to 7 feet. Isolated thunderstorms. Scattered

showers.

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

occasional seas up to 6 feet. Dominant period 13 seconds. North

swell 4 to 7 feet. Isolated thunderstorms. Scattered showers.



$$



AMZ745-180315-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

1022 AM AST Thu Sep 17 2020



.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet

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

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

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

.FRIDAY...Northeast winds 5 to 10 knots veering southwest in the

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

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

Dominant period 11 seconds. Isolated showers.

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

Dominant period 11 seconds. Isolated showers.

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

Dominant period 12 seconds. Isolated showers.

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

Dominant period 13 seconds. Isolated showers.



$$

