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FZCA52 TJSJ 090118

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

918 PM AST Fri Jan 8 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.



AMZ700-091430-

918 PM AST Fri Jan 8 2021



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

Moderate to locally fresh easterly winds are expected to continue 

through the weekend into early next week. A small northerly swell 

will continue to spread across the Atlantic waters and local passages

tonight, but seas will remain generally at 6 feet or less. 

Thereafter, a northeasterly swell is forecast to spread across the 

local waters, resulting in choppy to hazardous seas through early 

next week.



$$



AMZ710-091430-

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

918 PM AST Fri Jan 8 2021



...SMALL CRAFT SHOULD EXERCISE CAUTION...



.REST OF TONIGHT...East 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. Isolated showers through the night.

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

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

swell 4 to 5 feet. Isolated showers.

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

occasional seas up to 8 feet. Dominant period 13 seconds. North

swell 4 to 5 feet. Isolated showers.

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

occasional seas up to 8 feet. Dominant period 13 seconds.

Northeast swell 4 to 5 feet. Isolated showers.

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

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

Northeast swell 4 to 5 feet. Isolated showers.

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

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

Northeast swell 5 to 7 feet. Isolated showers.

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

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

Northeast swell 4 to 7 feet. Isolated showers.

.WEDNESDAY...East winds 10 to 15 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.



$$



AMZ712-091430-

Coastal Waters of Northern Puerto Rico out 10 NM-

918 PM AST Fri Jan 8 2021



.REST OF TONIGHT...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 after midnight. Isolated showers through

the night.

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

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

swell 4 to 5 feet. Isolated showers.

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

occasional seas up to 8 feet. Dominant period 13 seconds. North

swell 4 to 5 feet. Isolated showers.

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

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

Northeast swell 4 to 5 feet. Isolated showers.

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

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

Northeast swell around 4 feet. Scattered showers.

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

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

Northeast swell 4 to 5 feet. Isolated showers.

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

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

Northeast swell 4 to 5 feet. Isolated showers.

.WEDNESDAY...East winds 10 to 15 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.



$$



AMZ715-091430-

Coastal Waters of Northern USVI and Culebra out 10 NM-

918 PM AST Fri Jan 8 2021



.REST OF TONIGHT...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 after midnight. Isolated showers.

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

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

swell 4 to 5 feet. Scattered showers.

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

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

swell 4 to 5 feet. Isolated showers.

.SUNDAY...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.

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

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

swell around 4 feet. Isolated showers.

.MONDAY...East winds 15 to 20 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.

.TUESDAY...East winds 15 to 20 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.

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

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

Scattered showers.



$$



AMZ722-091430-

Anegada Passage Southward to 17N-

918 PM AST Fri Jan 8 2021



...SMALL CRAFT SHOULD EXERCISE CAUTION...



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

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

North swell 4 to 5 feet. Scattered showers.

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

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

swell 4 to 5 feet. Isolated showers.

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

occasional seas up to 8 feet. Dominant period 13 seconds. North

swell 4 to 5 feet. Isolated showers.

.SUNDAY...East winds 10 to 15 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.

.SUNDAY NIGHT...East winds 10 to 15 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.

.MONDAY...East winds 15 to 20 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.

.TUESDAY...East winds 15 to 20 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.

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

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

showers.



$$



AMZ725-091430-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

918 PM AST Fri Jan 8 2021



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

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

Isolated showers.

.SATURDAY...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.

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

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

swell around 4 feet. Isolated showers.

.SUNDAY...East 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. Scattered showers.

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

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

swell 4 to 5 feet. Scattered showers.

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

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

swell 4 to 6 feet. Scattered showers.

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

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

swell 4 to 6 feet. Scattered showers.

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

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

Scattered showers.



$$



AMZ732-091430-

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

918 PM AST Fri Jan 8 2021



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

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

increasing to 10 seconds. Isolated showers.

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

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

Northeast swell around 4 feet. Isolated showers.

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

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

swell around 4 feet. Isolated showers.

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

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

Northeast swell 4 to 5 feet. Isolated showers.

.SUNDAY NIGHT...East winds 15 to 20 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.

.MONDAY...East winds 15 to 20 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.

.TUESDAY...East winds 15 to 20 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.

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

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

showers.



$$



AMZ735-091430-

Coastal Waters of Southern Puerto Rico out 10 NM-

918 PM AST Fri Jan 8 2021



.REST OF 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.

.SATURDAY...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 day.

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

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

showers.

.SUNDAY...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.

.SUNDAY 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 through the night.

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

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

showers.

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

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

showers.

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

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

showers.



$$



AMZ741-091430-

Mona Passage Southward to 17N-

918 PM AST Fri Jan 8 2021



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

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

North swell around 4 feet. Isolated showers through the night.

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

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

swell around 4 feet. Isolated showers.

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

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

swell around 4 feet. Isolated showers through the night.

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

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

Northeast swell around 4 feet. Isolated showers through the day.

.SUNDAY NIGHT...East winds 15 to 20 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 through the night.

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

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

Northeast swell 4 to 5 feet. Isolated showers.

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

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

Northeast swell 4 to 5 feet. Isolated showers.

.WEDNESDAY...East 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 5 feet. Isolated showers.



$$



AMZ742-091430-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

918 PM AST Fri Jan 8 2021



.REST OF TONIGHT...Southeast winds 5 to 10 knots backing east.

Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant

period 10 seconds. North swell around 4 feet in the evening.

Scattered showers through the night.

.SATURDAY...East 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. Scattered showers.

.SATURDAY 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. Isolated showers.

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

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

swell around 4 feet.

.SUNDAY NIGHT...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 through the night.

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

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

Northwest swell 4 to 5 feet. Isolated showers.

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

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

Northwest swell 4 to 5 feet. Isolated showers.

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

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

swell around 4 feet. Isolated showers.



$$



AMZ745-091430-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

918 PM AST Fri Jan 8 2021



.REST OF 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 in the evening.

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

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

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

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

showers.

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

Dominant period 10 seconds.

.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.

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

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

showers.

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

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

showers.



$$

