Coastal Waters Forecast
Issued by NWS San Juan, PR

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000
FZCA52 TJSJ 170114
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
914 PM AST Sat Dec 16 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.

AMZ700-171345-
914 PM AST Sat Dec 16 2017

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
A surface 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 through the
weekend. A northerly swell will continue to subside across the
Atlantic waters, however hazardous seas will return across the
Caribbean Passages and offshore waters during the overnight hours due
to wind driven seas.

$$

AMZ710-171345-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
914 PM AST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM AST SUNDAY THROUGH
MONDAY Afternoon...

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

$$

AMZ712-171345-
Coastal Waters of Northern Puerto Rico out 10 NM-
914 PM AST Sat Dec 16 2017

...Small Craft should exercise caution...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM AST SUNDAY THROUGH
MONDAY Morning...

.REST OF TONIGHT...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. Isolated
showers.
.SUNDAY NIGHT...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...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 NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 8 seconds.
Scattered showers.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Scattered
showers.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.

$$

AMZ715-171345-
Coastal Waters of Northern USVI and Culebra out 10 NM-
914 PM AST Sat Dec 16 2017

...Small Craft should exercise caution...

.REST OF TONIGHT...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 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Isolated
showers.
.SUNDAY 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.
.MONDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds.
Scattered showers.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 10 seconds.
Scattered showers.
.TUESDAY...Northeast 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. Scattered showers.
.WEDNESDAY...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. Scattered showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ722-171345-
Anegada Passage Southward to 17N-
914 PM AST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM AST SUNDAY THROUGH
MONDAY Afternoon...

.REST OF TONIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7
feet with occasional seas up to 9 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. Isolated
showers.
.SUNDAY NIGHT...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...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 NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 8 seconds.
Scattered showers.
.TUESDAY...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.
.WEDNESDAY...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.
.THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ725-171345-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
914 PM AST Sat Dec 16 2017

...Small Craft should exercise caution...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM AST SUNDAY THROUGH
MONDAY Morning...

.REST OF TONIGHT...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 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. Isolated
showers.
.SUNDAY NIGHT...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...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Scattered
showers.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 8 seconds.
Scattered showers.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY...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.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ732-171345-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
914 PM AST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM AST SUNDAY THROUGH
MONDAY Afternoon...

.REST OF TONIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7
feet with occasional seas up to 9 feet. Dominant Period 7 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. North
swell around 4 feet. Scattered showers.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet
with occasional seas up to 9 feet. Dominant Period 7 seconds.
North swell around 4 feet. Scattered showers.
.MONDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. North
swell around 4 feet. Scattered showers.
.MONDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet
with occasional seas up to 9 feet. Dominant Period 7 seconds.
Isolated showers.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds.
Northeast swell around 4 feet. Isolated showers.
.THURSDAY...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.

$$

AMZ735-171345-
Coastal Waters of Southern Puerto Rico out 10 NM-
914 PM AST Sat Dec 16 2017

...Small Craft should exercise caution...

.REST OF TONIGHT...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 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Isolated
showers.
.SUNDAY 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.
.MONDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 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 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.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Isolated
showers.

$$

AMZ741-171345-
Mona Passage Southward to 17N-
914 PM AST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM AST SUNDAY THROUGH
MONDAY Afternoon...

.REST OF TONIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7
feet with occasional seas up to 9 feet. Dominant Period 7 seconds.
North swell around 4 feet after midnight. Isolated showers through
the night.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. North
swell around 4 feet shifting to the northeast in the afternoon.
Isolated showers.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet
with occasional seas up to 9 feet. Dominant Period 7 seconds. East
swell around 4 feet. Isolated showers.
.MONDAY...Northeast winds 15 to 20 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 NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet
with occasional seas up to 9 feet. Dominant Period 7 seconds.
Isolated showers.
.TUESDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 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...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.

$$

AMZ742-171345-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
914 PM AST Sat Dec 16 2017

...Small Craft should exercise caution...

.REST OF TONIGHT...Northeast 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.
.SUNDAY...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 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.
.MONDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds. Isolated
showers.
.MONDAY 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.
.TUESDAY...Northeast winds 15 to 20 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 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.

$$

AMZ745-171345-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
914 PM AST Sat Dec 16 2017

.REST OF TONIGHT...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 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 7 seconds.
Isolated showers.
.MONDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Isolated
showers.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 10 seconds.
Isolated showers.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 10 seconds. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 7 seconds. Isolated showers.

$$


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