Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 151423
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
1023 AM AST Fri Dec 15 2017

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.

AMZ700-160315-
1023 AM AST Fri Dec 15 2017

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A high pressure ridge will build and spread across the forecast
area, tightening the local pressure gradient. This will result in a
moderate to fresh east to northeast wind flow during the next several
days. A northerly swell will continue to spread across the Atlantic
waters and local passages throughout the day.

$$

AMZ710-160315-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1023 AM AST Fri Dec 15 2017

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

.REST OF TODAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 10 seconds.
Northwest swell 5 to 6 feet. Isolated showers.
.TONIGHT...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 6 feet. Isolated showers through the night.
.SATURDAY...Northeast 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 through the day.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 8 seconds.
Isolated showers.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant Period 7 seconds.
Northwest swell around 4 feet. Scattered showers.
.MONDAY...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 7 feet. Scattered showers.
.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 11 seconds. North
swell 4 to 7 feet. Scattered showers.

$$

AMZ712-160315-
Coastal Waters of Northern Puerto Rico out 10 NM-
1023 AM AST Fri Dec 15 2017

...Small Craft should exercise caution...

.REST OF TODAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Northwest swell 4 to 5 feet. Isolated showers.
.TONIGHT...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.
.SATURDAY...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 through the day.
.SATURDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Isolated
showers.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. Scattered
showers.
.MONDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 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. North
swell 4 to 5 feet. Scattered showers.

$$

AMZ715-160315-
Coastal Waters of Northern USVI and Culebra out 10 NM-
1023 AM AST Fri Dec 15 2017

...Small Craft should exercise caution...

.REST OF TODAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Northwest swell 4 to 5 feet. Isolated showers through the day.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Northwest swell 4 to 5 feet. Isolated showers.
.SATURDAY...Northeast 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. Scattered showers.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 8 seconds.
Isolated showers.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. Scattered
showers.
.MONDAY...East winds 15 to 20 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.
.TUESDAY...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.

$$

AMZ722-160315-
Anegada Passage Southward to 17N-
1023 AM AST Fri Dec 15 2017

...Small Craft should exercise caution...

.REST OF TODAY...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.
.TONIGHT...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 through the night.
.SATURDAY...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.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 8 seconds.
Isolated showers.
.SUNDAY...Northeast winds 20 to 25 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant Period 7 seconds.
Northeast swell around 4 feet. Scattered showers.
.MONDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 11 seconds. North
swell 4 to 7 feet. Scattered showers.
.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 11 seconds. North
swell 4 to 6 feet. Scattered showers.

$$

AMZ725-160315-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
1023 AM AST Fri Dec 15 2017

.REST OF TODAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. East
swell around 4 feet. Isolated showers through the day.
.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. East
swell around 4 feet. Isolated showers.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. East
swell around 4 feet. Scattered showers.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 7 seconds.
Scattered showers.
.SUNDAY...Northeast winds 20 to 25 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. North
swell around 4 feet. Scattered showers.
.MONDAY...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. 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 5 feet. Scattered showers.

$$

AMZ732-160315-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
1023 AM AST Fri Dec 15 2017

.REST OF TODAY...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. Isolated showers.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Isolated
showers through the night.
.SATURDAY...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.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 7 seconds.
Isolated showers.
.SUNDAY...Northeast winds 20 to 25 knots. Seas 6 to 8 feet with
occasional seas up to 10 feet. Dominant Period 7 seconds. North
swell around 4 feet. Scattered showers.
.MONDAY...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 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. Isolated showers.

$$

AMZ735-160315-
Coastal Waters of Southern Puerto Rico out 10 NM-
1023 AM AST Fri Dec 15 2017

.REST OF TODAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 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.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds.
.SATURDAY 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.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds.
.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 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
showers.

$$

AMZ741-160315-
Mona Passage Southward to 17N-
1023 AM AST Fri Dec 15 2017

.REST OF TODAY...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.
.TONIGHT...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.
.SATURDAY...Northeast 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.
.SATURDAY NIGHT...Northeast 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 night.
.SUNDAY...Northeast winds 20 to 25 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. Northeast
swell around 4 feet. Isolated showers.
.MONDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 10 seconds. North
swell 4 to 7 feet. Isolated showers.
.TUESDAY...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 6 feet. Isolated showers.

$$

AMZ742-160315-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
1023 AM AST Fri Dec 15 2017

.REST OF TODAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northwest swell around 4 feet.
.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. Isolated showers through the night.
.SATURDAY...Northeast 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.
.SATURDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant Period 8 seconds.
Isolated showers.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds. Isolated
showers.
.MONDAY...East winds 15 to 20 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.
.TUESDAY...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.

$$

AMZ745-160315-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
1023 AM AST Fri Dec 15 2017

.REST OF TODAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Northwest swell around 4 feet.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. Isolated
showers.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 8 seconds.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.MONDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.TUESDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 10 seconds. Isolated showers.

$$


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