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703 

FZCA52 TJSJ 041412

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

1012 AM AST Mon Jan 4 2021



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.



AMZ700-050315-

1012 AM AST Mon Jan 4 2021



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

A fading northeasterly swell and gradually diminishing wind driven 

seas will allow hazardous condtions to fade this afternoon and 

overnight. Moderate east northeast tradewinds will continue across 

the local waters. Seas will continue to improve through Wednesday. 

Another small northeasterly swell is forecast to move across the 

local Atlantic Waters and Caribbean Passages around late Tuesday 

night and early Wednesday morning. Showers will increase Monday night

and Tuesday.



$$



AMZ710-050315-

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

1012 AM AST Mon Jan 4 2021



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

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



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

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

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

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

showers.

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

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

showers.

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

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

Northeast swell around 4 feet. Scattered showers.

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

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

swell around 4 feet. Isolated showers.

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

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

swell 4 to 5 feet. Scattered showers.

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

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

swell 4 to 5 feet. Isolated showers.



$$



AMZ712-050315-

Coastal Waters of Northern Puerto Rico out 10 NM-

1012 AM AST Mon Jan 4 2021



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

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



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

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

Isolated showers through the day.

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

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

showers.

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

occasional seas up to 6 feet. Dominant period 9 seconds. Scattered

showers.

.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet

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

Scattered showers.

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

occasional seas up to 5 feet. Dominant period 13 seconds. North

swell around 4 feet. Scattered showers.

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

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

swell 4 to 5 feet. Scattered showers.

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

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

swell 4 to 5 feet. Isolated showers.



$$



AMZ715-050315-

Coastal Waters of Northern USVI and Culebra out 10 NM-

1012 AM AST Mon Jan 4 2021



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

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



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

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

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

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

showers.

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

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

showers.

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

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

showers.

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

occasional seas up to 5 feet. Dominant period 13 seconds. North

swell around 4 feet. Isolated showers.

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

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

swell around 4 feet. Numerous showers.

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

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

swell 4 to 5 feet. Scattered showers.



$$



AMZ722-050315-

Anegada Passage Southward to 17N-

1012 AM AST Mon Jan 4 2021



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

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



.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 4 to 7 feet

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

Isolated showers.

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

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

Scattered showers.

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

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

showers.

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

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

Northeast swell around 4 feet. Isolated showers.

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

occasional seas up to 5 feet. Dominant period 13 seconds. North

swell around 4 feet. Scattered showers.

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

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

swell around 4 feet. Scattered showers.

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

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

swell 4 to 5 feet. Scattered showers.



$$



AMZ725-050315-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

1012 AM AST Mon Jan 4 2021



...SMALL CRAFT SHOULD EXERCISE CAUTION...



.REST OF TODAY...Northeast winds 10 to 15 knots. Seas 4 to 6 feet 

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

swell 4 to 5 feet.

.TONIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with

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

showers.

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

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

Scattered showers.

.TUESDAY 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.

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

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

Scattered showers.

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

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

Northeast swell around 4 feet. Numerous showers.

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

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

Northeast swell around 4 feet. Scattered showers.



$$



AMZ732-050315-

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

1012 AM AST Mon Jan 4 2021



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

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



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

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

East swell 4 to 6 feet. Isolated showers through the day.

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

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

Scattered showers.

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

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

Scattered showers.

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

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

showers.

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

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

swell around 4 feet. Isolated showers.

.THURSDAY...East 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. Scattered showers.

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

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

swell around 4 feet. Isolated showers.



$$



AMZ735-050315-

Coastal Waters of Southern Puerto Rico out 10 NM-

1012 AM AST Mon Jan 4 2021



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

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

.TONIGHT...Northeast 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.

.TUESDAY...Northeast winds 5 to 10 knots veering east in the

afternoon. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered

showers.

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

Dominant period 7 seconds. Isolated showers.

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

Dominant period 10 seconds. Isolated showers.

.THURSDAY...Northeast winds 10 to 15 knots. Seas 2 feet or less.

Dominant period 11 seconds. Isolated showers.

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

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

showers.



$$



AMZ741-050315-

Mona Passage Southward to 17N-

1012 AM AST Mon Jan 4 2021



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

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



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

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

East swell 4 to 6 feet.

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

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

swell 4 to 5 feet.

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

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

showers.

.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet

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

Isolated showers.

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

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

Northeast swell around 4 feet. Isolated showers.

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

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

swell around 4 feet. Isolated showers.

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

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

swell around 4 feet. Isolated showers.



$$



AMZ742-050315-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

1012 AM AST Mon Jan 4 2021



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

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



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

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

Northeast swell 4 to 6 feet.

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

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

Northeast swell 4 to 5 feet in the evening.

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

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

Scattered showers.

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

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

showers.

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

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

showers.

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

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

swell around 4 feet. Isolated showers.

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

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

swell 4 to 5 feet. Isolated showers.



$$



AMZ745-050315-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

1012 AM AST Mon Jan 4 2021



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

Dominant period 11 seconds.

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

Dominant period 10 seconds. Isolated showers.

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

Dominant period 7 seconds.

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

Dominant period 8 seconds. Scattered showers.

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

Dominant period 12 seconds. Isolated showers.

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

period 12 seconds. Isolated showers.

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

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

showers.



$$

