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121 

FZCA52 TJSJ 200111

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

911 PM AST Mon Oct 19 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.



AMZ700-201415-

911 PM AST Mon Oct 19 2020



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

Light to gentle northerly winds are expected through Tuesday due to 

the effect of high pressure in the western Atlantic and Tropical 

Storm Epsilon well northeast of the local area. A northeasterly swell

generated by Epsilon is forecast to enter and spread across the 

Atlantic waters from Tuesday onwards. This will result in 

deteriorating and hazardous seas for the rest of the work-week and 

possibly into the upcoming weekend as a secondary northerly swell is 

also forecast to follow.



$$



AMZ710-201415-

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

911 PM AST Mon Oct 19 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH 

FRIDAY AFTERNOON...



.REST OF TONIGHT...Northwest winds 5 to 10 knots. Seas 4 to 6 feet

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

Isolated showers.

.TUESDAY...North winds 5 to 10 knots. Seas 6 to 8 feet with

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

Northeast swell 4 to 8 feet in the afternoon. Isolated showers.

.TUESDAY NIGHT...North winds 5 to 10 knots backing southwest after

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

Dominant period 11 seconds. Northeast swell 4 to 9 feet. Isolated

showers.

.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 8 to 10 feet with

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

Northeast swell 8 to 9 feet. Isolated showers through the day.

.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 8 to 10

feet with occasional seas up to 11 feet. Dominant period 12

seconds. Northeast swell 8 to 9 feet. Scattered showers.

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

occasional seas up to 11 feet. Dominant period 12 seconds.

Northeast swell 5 to 9 feet. Scattered showers. Isolated

thunderstorms.

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

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

swell 5 to 6 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 5 to 7 feet. Isolated showers, then isolated thunderstorms.



$$



AMZ712-201415-

Coastal Waters of Northern Puerto Rico out 10 NM-

911 PM AST Mon Oct 19 2020



...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH

FRIDAY AFTERNOON...



.REST OF TONIGHT...North winds 5 to 10 knots backing southwest

after midnight. Seas 2 to 4 feet with occasional seas up to 5

feet. Dominant period 10 seconds. Isolated showers.

.TUESDAY...Southwest winds 5 to 10 knots veering north in the

afternoon. Seas 4 to 6 feet with occasional seas up to 8 feet.

Dominant period 10 seconds. Isolated showers.

.TUESDAY NIGHT...Northeast winds 5 to 10 knots veering south after

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

Dominant period 10 seconds. Northeast swell 4 to 8 feet. Isolated

showers.

.WEDNESDAY...Southwest winds 5 to 10 knots veering north in the

afternoon. Seas 8 to 10 feet with occasional seas up to 11 feet.

Dominant period 11 seconds. Northeast swell 7 to 9 feet.

.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 8 to 10 feet

with occasional seas up to 11 feet. Dominant period 12 seconds.

Northeast swell 7 to 9 feet. Isolated showers through the night.

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

occasional seas up to 11 feet. Dominant period 12 seconds.

Northeast swell 6 to 8 feet. Isolated thunderstorms. Scattered

showers.

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

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

swell 4 to 6 feet. Isolated thunderstorms, then scattered showers.

.SATURDAY...Southeast 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.



$$



AMZ715-201415-

Coastal Waters of Northern USVI and Culebra out 10 NM-

911 PM AST Mon Oct 19 2020



...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH

FRIDAY MORNING...



.REST OF TONIGHT...Northwest winds 5 to 10 knots. Seas 2 to 4 feet

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

Isolated showers.

.TUESDAY...Northwest winds 5 to 10 knots. Seas 4 to 6 feet with

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

showers.

.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 6 to 8 feet

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

North swell 4 to 8 feet. Isolated showers.

.WEDNESDAY...South winds 5 to 10 knots. Seas 8 to 10 feet with

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

swell 4 to 8 feet. Isolated showers.

.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 8 to 10 feet

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

North swell 4 to 8 feet. Scattered showers.

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

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

swell 4 to 8 feet. Isolated thunderstorms. Scattered showers.

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

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

swell 4 to 5 feet. Isolated showers.



$$



AMZ722-201415-

Anegada Passage Southward to 17N-

911 PM AST Mon Oct 19 2020



...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH

THURSDAY EVENING...



.REST OF TONIGHT...West winds 5 to 10 knots. Seas 3 to 5 feet with

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

showers.

.TUESDAY...West winds 5 to 10 knots. Seas 5 to 7 feet with

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

swell 4 to 6 feet in the afternoon. Isolated showers.

.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 8 to 10 feet

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

North swell 4 to 9 feet. Isolated showers.

.WEDNESDAY...South winds 5 to 10 knots. Seas 8 to 10 feet with

occasional seas up to 11 feet. Dominant period 12 seconds.

Northeast swell 5 to 9 feet. Isolated showers through the day.

.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 8 to 10

feet with occasional seas up to 11 feet. Dominant period 12

seconds. Northeast swell 5 to 8 feet. Isolated showers through the

night.

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

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

swell 5 to 8 feet. Isolated showers.

.FRIDAY...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. Scattered showers.

.SATURDAY...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 6 feet. Isolated showers.



$$



AMZ725-201415-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

911 PM AST Mon Oct 19 2020



.REST OF TONIGHT...Northwest winds 5 to 10 knots. Seas 1 to 3

feet. Dominant period 10 seconds. Isolated showers.

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

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

showers.

.TUESDAY NIGHT...Southwest 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.

.WEDNESDAY...South 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 7 feet. Isolated showers through the day.

.WEDNESDAY NIGHT...Southeast 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 7 feet. Scattered showers.

.THURSDAY...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 6 feet. Isolated thunderstorms. Scattered

showers.

.FRIDAY...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. Scattered 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 4 to 5 feet. Isolated showers, then isolated

thunderstorms.



$$



AMZ732-201415-

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

911 PM AST Mon Oct 19 2020



...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH

THURSDAY EVENING...



.REST OF TONIGHT...North winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated showers.

.TUESDAY...North winds 5 to 10 knots veering south in the

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

Dominant period 10 seconds. Isolated showers.

.TUESDAY NIGHT...Southeast 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. Isolated showers.

.WEDNESDAY...Southeast 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. Isolated showers through the day.

.WEDNESDAY NIGHT...Southeast 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.

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

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

swell 4 to 7 feet. Isolated showers.

.FRIDAY...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. Scattered showers.

.SATURDAY...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. Scattered showers. Isolated thunderstorms.



$$



AMZ735-201415-

Coastal Waters of Southern Puerto Rico out 10 NM-

911 PM AST Mon Oct 19 2020



.REST OF TONIGHT...Northeast winds 5 to 10 knots. Seas 2 feet or

less. Dominant period 7 seconds. Isolated showers through the

night.

.TUESDAY...Northwest winds 5 to 10 knots backing southwest in the

afternoon. Seas 2 feet or less. Dominant period 7 seconds.

.TUESDAY NIGHT...Southwest winds 5 to 10 knots backing southeast

after midnight. Seas 2 feet or less. Dominant period 8 seconds.

Isolated showers through the night.

.WEDNESDAY...Northeast winds 5 to 10 knots veering southeast in

the afternoon. Seas 2 feet or less. Dominant period 10 seconds.

Isolated showers.

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

Dominant period 10 seconds. Scattered showers.

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

period 10 seconds. Scattered showers.

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

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

showers.

.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, then isolated thunderstorms.



$$



AMZ741-201415-

Mona Passage Southward to 17N-

911 PM AST Mon Oct 19 2020



...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH

FRIDAY AFTERNOON...



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

feet. Dominant period 10 seconds. Isolated showers.

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

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

showers.

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

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

swell 4 to 7 feet after midnight. Isolated showers.

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

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

swell 4 to 7 feet. Isolated showers.

.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 6 to 8 feet

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

North swell 4 to 7 feet. Scattered showers.

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

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

swell 4 to 8 feet. Scattered showers. Isolated thunderstorms.

.FRIDAY...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 7 feet. Scattered showers.

.SATURDAY...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 6 feet. Isolated thunderstorms.



$$



AMZ742-201415-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

911 PM AST Mon Oct 19 2020



...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TUESDAY NIGHT THROUGH

FRIDAY AFTERNOON...



.REST OF TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated showers.

.TUESDAY...East winds 5 to 10 knots backing northwest in the

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

Dominant period 10 seconds. Isolated showers.

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

after midnight. Seas 5 to 7 feet with occasional seas up to 9

feet. Dominant period 10 seconds. North swell 4 to 7 feet after

midnight. Isolated showers through the night.

.WEDNESDAY...Southeast winds 5 to 10 knots veering southwest in

the afternoon. Seas 6 to 8 feet with occasional seas up to 10

feet. Dominant period 10 seconds. North swell 4 to 7 feet.

.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 6 to 8 feet

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

North swell 4 to 7 feet. Isolated showers.

.THURSDAY...East 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, then isolated

showers.

.FRIDAY...East winds 5 to 10 knots. Seas 3 to 7 feet with occasional

seas up to 6 feet. Dominant period 11 seconds. North swell 4 to 7 

feet. Isolated thunderstorms, then 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. North

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



$$



AMZ745-201415-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

911 PM AST Mon Oct 19 2020



.REST OF TONIGHT...Northeast winds 5 to 10 knots. Seas 2 feet or

less. Dominant period 7 seconds. Isolated showers through the

night.

.TUESDAY...Northeast winds 5 to 10 knots backing northwest in the

afternoon. Seas 2 feet or less. Dominant period 10 seconds.

Isolated showers.

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

midnight. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated

showers through the night.

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

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

.WEDNESDAY 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.

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

period 12 seconds. Scattered showers.

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

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

showers.

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

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

Southwest swell around 4 feet. Isolated thunderstorms. Scattered

showers.



$$

