Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 162024
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
424 PM AST Tue Jan 16 2018

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.

AMZ700-170915-
424 PM AST Tue Jan 16 2018

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Strong surface high pressure in the north central Atlantic will
continue to weaken. A frontal system will remain to the west of this
high pressure. An induced surface trough will continue north of the
region until Friday. High pressure will move into the western
Atlantic over the weekend. This will maintain a moderate east trade
wind flow across the regional waters. Hazardous seas will continue
through at least Wednesday night.

$$

AMZ710-170915-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
424 PM AST Tue Jan 16 2018

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

.TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds.
Northeast swell 4 to 6 feet. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds. East
swell 5 to 7 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet
with occasional seas up to 9 feet. Dominant period 10 seconds.
East swell 4 to 6 feet. Isolated showers through the night.
.THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. North
swell up to 5 Feet. Isolated showers.
.THURSDAY 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 through the night.
.FRIDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 9 seconds. Isolated
showers.
.SATURDAY...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 6 feet. Isolated showers.
.SUNDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 8 seconds. Scattered
showers.

$$

AMZ712-170915-
Coastal Waters of Northern Puerto Rico out 10 NM-
424 PM AST Tue Jan 16 2018

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

.TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds.
Northeast swell 4 to 6 feet. Scattered showers through the night.
.WEDNESDAY...East winds 5 to 10 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds.
Northeast swell 4 to 6 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds.
Northeast swell 4 to 6 feet. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. North
swell up to 5 Feet. Isolated showers.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 9 seconds. Scattered
showers.
.FRIDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. Isolated
showers.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Isolated
showers.

$$

AMZ715-170915-
Coastal Waters of Northern USVI and Culebra out 10 NM-
424 PM AST Tue Jan 16 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM AST WEDNESDAY...

.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. Scattered showers.
.WEDNESDAY...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.
.WEDNESDAY NIGHT...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.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. North
swell up to 4 Feet. Isolated showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 9 seconds. Isolated
showers through the night.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.
.SATURDAY...East 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.
.SUNDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Scattered
showers.

$$

AMZ722-170915-
Anegada Passage Southward to 17N-
424 PM AST Tue Jan 16 2018

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

.TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds.
Northeast swell 4 to 6 feet. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds.
Northeast swell 4 to 6 feet. Isolated showers.
.WEDNESDAY 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 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 9 seconds. Isolated
showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Isolated
showers.
.FRIDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. Isolated
showers.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. Isolated
showers.
.SUNDAY...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.

$$

AMZ725-170915-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
424 PM AST Tue Jan 16 2018

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

.TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds.
Northeast swell 4 to 6 feet. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds. East
swell 4 to 6 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 10 seconds.
East swell 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 8 seconds. North
swell up to 4 Feet. Isolated showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Scattered
showers through the night.
.FRIDAY...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. Scattered showers.
.SATURDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. Isolated
showers.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Scattered showers.

$$

AMZ732-170915-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
424 PM AST Tue Jan 16 2018

...Small Craft should exercise caution...

.TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds.
Northeast swell up to 5 feet. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. East
swell 4 to 5 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 10 seconds.
East swell 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. North
swell up to 4 Feet. Isolated showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers.
.FRIDAY...East 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.
.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.
.SUNDAY...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 5 feet. Scattered showers.

$$

AMZ735-170915-
Coastal Waters of Southern Puerto Rico out 10 NM-
424 PM AST Tue Jan 16 2018

.TONIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds.
Scattered showers through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. Isolated
showers.
.WEDNESDAY 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.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 8 seconds. Isolated
showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant period 8 seconds.
Scattered showers through the night.
.FRIDAY...East 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 10 seconds. Isolated
showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers.

$$

AMZ741-170915-
Mona Passage Southward to 17N-
424 PM AST Tue Jan 16 2018

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

.TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds.
Northeast swell 4 to 6 feet. Isolated showers through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant period 10 seconds. East
swell 4 to 6 feet. Isolated showers.
.WEDNESDAY 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 4 to 5 feet. Isolated showers.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. North
swell up to 5 Feet. Isolated showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers through the night.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 10 seconds. Isolated
showers.
.SUNDAY...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 6 feet. Isolated showers.

$$

AMZ742-170915-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
424 PM AST Tue Jan 16 2018

...Small Craft should exercise caution...

.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 up to 5 feet. Scattered showers.
.WEDNESDAY...East winds 5 to 10 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 NIGHT...East winds 5 to 10 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...Northeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds. North
swell up to 4 Feet. Scattered showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers through the night.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds.
Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. North
swell around 4 feet. Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 8 seconds. Isolated
showers.

$$

AMZ745-170915-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
424 PM AST Tue Jan 16 2018

.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Numerous showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 9 seconds. Isolated showers.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds. Scattered showers.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 9 seconds. Scattered showers.
.FRIDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 8 seconds. Scattered showers.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 10 seconds. Isolated
showers.
.SUNDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant period 8 seconds. Isolated
showers.

$$



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