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152 

FZCA52 TJSJ 271907

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

307 PM AST Sun Dec 27 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.



AMZ700-280730-

307 PM AST Sun Dec 27 2020



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

Tranquil to choppy conditions are expected for the first couple of

days of this week, with hazardous conditions once again early 

Wednesday through the weekend as a wind-driven swell impacts the 

region. Isolated to scattered showers can be expected across the 

local waters for the next several days.



$$



AMZ710-280730-

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

307 PM AST Sun Dec 27 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



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

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

showers.

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

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

Scattered showers.

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

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

Numerous showers.

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

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

Scattered showers in the morning, then isolated thunderstorms in

the afternoon.

.TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet

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

Northeast swell 4 to 5 feet. Scattered showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 6 to 8 feet with

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

swell 4 to 6 feet. Scattered showers. Isolated thunderstorms.

.THURSDAY...East winds 20 to 25 knots. Seas 10 to 12 feet with

occasional seas up to 14 feet. Dominant period 10 seconds. North

swell 5 to 10 feet. Scattered showers.

.FRIDAY...East winds 15 to 20 knots. Seas 10 to 12 feet with

occasional seas up to 14 feet. Dominant period 11 seconds.

Northeast swell 5 to 10 feet. Isolated showers.



$$



AMZ712-280730-

Coastal Waters of Northern Puerto Rico out 10 NM-

307 PM AST Sun Dec 27 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



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

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

showers.

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

occasional seas up to 8 feet. Dominant period 9 seconds. Scattered

showers.

.MONDAY NIGHT...North winds 5 to 10 knots. Seas 3 to 5 feet with

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

showers.

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

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

showers through the day. Isolated thunderstorms in the afternoon.

.TUESDAY NIGHT...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 after midnight. Scattered showers.

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

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

Northeast swell around 4 feet. Numerous showers. Isolated

thunderstorms.

.THURSDAY...East winds 15 to 20 knots. Seas 8 to 10 feet with

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

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

.FRIDAY...East winds 15 to 20 knots. Seas 8 to 10 feet with

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

Northeast swell 4 to 5 feet. Scattered showers.



$$



AMZ715-280730-

Coastal Waters of Northern USVI and Culebra out 10 NM-

307 PM AST Sun Dec 27 2020



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

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

showers.

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

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

Scattered showers.

.MONDAY NIGHT...Southeast winds 5 to 10 knots backing northeast

after midnight. Seas 3 to 5 feet with occasional seas up to 6

feet. Dominant period 9 seconds. Numerous showers.

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

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

showers through the day. Isolated thunderstorms in the afternoon.

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

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

Scattered showers.

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

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

swell around 4 feet. Numerous showers. Isolated thunderstorms.

.THURSDAY...East winds 20 to 25 knots. Seas 6 to 8 feet with

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

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

.FRIDAY...East winds 15 to 20 knots. Seas 6 to 8 feet with

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

swell 4 to 5 feet. Isolated showers.



$$



AMZ722-280730-

Anegada Passage Southward to 17N-

307 PM AST Sun Dec 27 2020



.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.

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

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

showers.

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

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

Scattered showers.

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

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

Northeast swell around 4 feet in the afternoon. Scattered showers

through the day. Isolated thunderstorms in the afternoon.

.TUESDAY NIGHT...Northeast winds 5 to 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.

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

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

Northeast swell 4 to 5 feet. Scattered showers. Isolated

thunderstorms.

.THURSDAY...East winds 20 to 25 knots. Seas 8 to 10 feet with

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

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

.FRIDAY...East winds 15 to 20 knots. Seas 8 to 10 feet with

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

Northeast swell 5 to 10 feet. Isolated showers.



$$



AMZ725-280730-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

307 PM AST Sun Dec 27 2020



.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.

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

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

Scattered showers.

.MONDAY NIGHT...Southeast winds 5 to 10 knots backing northeast

after midnight. Seas 3 to 5 feet with occasional seas up to 6

feet. Dominant period 10 seconds. Scattered showers.

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

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

Scattered showers through the day. Isolated thunderstorms in the

afternoon.

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

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

Scattered showers.

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

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

Northeast swell around 4 feet. Numerous showers. Isolated

thunderstorms.

.THURSDAY...East winds 20 to 25 knots. Seas 6 to 8 feet with

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

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

.FRIDAY...East winds 15 to 20 knots. Seas 6 to 8 feet with

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

Northeast swell 4 to 5 feet. Isolated showers.



$$



AMZ732-280730-

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

307 PM AST Sun Dec 27 2020



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

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

Scattered showers.

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

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

showers.

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

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

showers.

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

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

Scattered showers through the day. Isolated thunderstorms in the

afternoon.

.TUESDAY NIGHT...Northeast 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.

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

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

Northeast swell 4 to 5 feet. Scattered showers. Isolated

thunderstorms.

.THURSDAY...East winds 20 to 25 knots. Seas 8 to 10 feet with

occasional seas up to 11 feet. Dominant period 7 seconds. North

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

.FRIDAY...East winds 15 to 20 knots. Seas 8 to 10 feet with

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

swell 4 to 5 feet. Isolated showers.



$$



AMZ735-280730-

Coastal Waters of Southern Puerto Rico out 10 NM-

307 PM AST Sun Dec 27 2020



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

Dominant period 10 seconds. Isolated showers.

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

period 10 seconds. Isolated showers.

.MONDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 8 seconds. Isolated showers.

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

afternoon. Seas 1 to 3 feet. Dominant period 8 seconds. Isolated

showers in the morning, then isolated thunderstorms in the

afternoon.

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

Dominant period 7 seconds. Isolated showers.

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

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

showers, then isolated thunderstorms.

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

occasional seas up to 8 feet. Dominant period 7 seconds. Isolated

showers.

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

occasional seas up to 9 feet. Dominant period 7 seconds. Isolated

showers.



$$



AMZ741-280730-

Mona Passage Southward to 17N-

307 PM AST Sun Dec 27 2020



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

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

showers through the night.

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

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

showers.

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

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

Isolated showers.

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

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

showers.

.TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet

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

Isolated showers.

.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet with

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

Northeast swell around 4 feet. Isolated showers.

.THURSDAY...East winds 20 to 25 knots. Seas 6 to 8 feet with

occasional seas up to 10 feet. Dominant period 7 seconds. North

swell 4 to 5 feet. Isolated showers.

.FRIDAY...East winds 15 to 20 knots. Seas 8 to 10 feet with

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

Northeast swell 4 to 5 feet. Isolated showers.



$$



AMZ742-280730-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

307 PM AST Sun Dec 27 2020



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

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

showers.

.MONDAY...East winds 5 to 10 knots backing north in the afternoon.

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

period 10 seconds. Isolated showers.

.MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 3 to 5 feet

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

Scattered showers.

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

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

showers.

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

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

Isolated showers.

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

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

showers.

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

occasional seas up to 9 feet. Dominant period 8 seconds. East

swell around 4 feet. Isolated showers.

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

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

Northeast swell around 4 feet. Isolated showers.



$$



AMZ745-280730-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

307 PM AST Sun Dec 27 2020



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

period 11 seconds. Isolated showers.

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

Dominant period 10 seconds.

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

Dominant period 8 seconds. Isolated showers.

.TUESDAY...North winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 8 seconds. Scattered showers through the day. Isolated

thunderstorms in the afternoon.

.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 7 seconds. Isolated

thunderstorms. Scattered showers.

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

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

thunderstorms, then isolated showers.

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

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

showers.



$$

