

095 

FZCA52 TJSJ 250136

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

936 PM AST Thu Dec 24 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.



AMZ700-251415-

936 PM AST Thu Dec 24 2020



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

Fresh to locally strong easterly wind flow across the regional waters

will continue for the next few days as surface high pressure over 

the central Atlantic holds over the region. A northerly swell 

combined with fresh to locally strong trade winds will promote choppy

to hazardous marine conditions across most of the regional waters 

through at least Saturday.



$$



AMZ710-251415-

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

936 PM AST Thu Dec 24 2020



...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...



.REST OF TONIGHT...East winds 15 to 20 knots. Seas 8 to 10 feet

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

Northeast 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 9 seconds.

Northeast swell 4 to 5 feet. Isolated showers.

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

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

Northeast swell around 4 feet. Scattered showers.

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

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

swell around 4 Feet. Isolated showers.

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

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

showers.

.SUNDAY...East winds 10 to 15 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 5 to 7 feet with

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

Scattered showers.

.TUESDAY...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. Isolated showers.



$$



AMZ712-251415-

Coastal Waters of Northern Puerto Rico out 10 NM-

936 PM AST Thu Dec 24 2020



...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT...



.REST OF TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet

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

Northeast swell around 4 feet. Showers.

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

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

Northeast swell around 4 feet. Isolated showers.

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

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

swell around 4 feet in the evening. Isolated showers.

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

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

showers.

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

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

showers.

.SUNDAY...East winds 10 to 15 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.

.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. Isolated showers.



$$



AMZ715-251415-

Coastal Waters of Northern USVI and Culebra out 10 NM-

936 PM AST Thu Dec 24 2020



...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT...



.REST OF TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet

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

North swell 4 to 6 feet. Isolated thunderstorms late in the

evening. Numerous showers through the night.

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

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

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

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

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

swell 4 to 5 feet in the evening. Isolated showers.

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

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

showers.

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

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

showers.

.SUNDAY...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...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.

Scattered showers.



$$



AMZ722-251415-

Anegada Passage Southward to 17N-

936 PM AST Thu Dec 24 2020



...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT...



.REST OF TONIGHT...East winds 15 to 20 knots. Seas 8 to 10 feet

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

Northeast 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 8 seconds.

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

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

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

swell around 4 feet. Isolated showers.

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

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

showers.

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

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

showers.

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

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

showers.

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

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

Scattered showers.

.TUESDAY...East 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.



$$



AMZ725-251415-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

936 PM AST Thu Dec 24 2020



...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT...



.REST OF TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet

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

Northeast swell around 4 feet. Isolated showers.

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

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

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

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

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

showers.

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

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

showers.

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

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

Scattered showers.

.SUNDAY...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...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.

Scattered showers.



$$



AMZ732-251415-

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

936 PM AST Thu Dec 24 2020



...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT...



.REST OF TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet

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

North swell around 4 feet. Scattered showers.

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

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

swell around 4 feet. Scattered showers through the day.

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

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

showers.

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

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

showers.

.SATURDAY 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.

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

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

Scattered showers.



$$



AMZ735-251415-

Coastal Waters of Southern Puerto Rico out 10 NM-

936 PM AST Thu Dec 24 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



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

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

Isolated thunderstorms late in the evening. Numerous showers

through the night.

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

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

showers through the day.

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

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

Isolated showers.

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

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

showers.

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

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

Isolated showers.

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

Dominant period 10 seconds. Isolated showers.

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

Dominant period 8 seconds. Isolated showers.

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

Dominant period 8 seconds. Scattered showers.



$$



AMZ741-251415-

Mona Passage Southward to 17N-

936 PM AST Thu Dec 24 2020



...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...



.REST OF TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet

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

Northeast swell 4 to 6 feet. Scattered showers.

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

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

Northeast swell around 4 feet. Scattered showers.

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

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

showers through the night.

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

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

showers.

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

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

Scattered showers.

.SUNDAY...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...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 10 seconds. Isolated

showers.



$$



AMZ742-251415-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

936 PM AST Thu Dec 24 2020



...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...



.REST OF TONIGHT...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.

.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 5 feet.

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

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

Northeast swell around 4 feet in the evening. Isolated showers.

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

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

showers.

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

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

showers.

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

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

Scattered showers.

.MONDAY...Northeast 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 10 to 15 knots. Seas 2 to 4 feet with

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

showers.



$$



AMZ745-251415-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

936 PM AST Thu Dec 24 2020



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

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

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

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

.FRIDAY 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.

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

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

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

Dominant period 8 seconds. Scattered showers.

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

period 11 seconds. Scattered showers.

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

Dominant period 10 seconds. Scattered showers.

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

Dominant period 7 seconds. Isolated showers.



$$

