Coastal Waters Forecast
Issued by NWS San Juan, PR

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000
FZCA52 TJSJ 220831
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
431 AM AST Mon Jan 22 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.

AMZ700-222130-
431 AM AST Mon Jan 22 2018

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Surface high pressure across the west and central Atlantic will maintain
moderate to locally fresh trade winds through Tuesday. A long dominant
period northerly swell will continue to affect the Atlantic waters and
local passages today but slowly subsiding through Tuesday.

$$

AMZ710-222130-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
431 AM AST Mon Jan 22 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY Afternoon...

.TODAY...East winds 15 to 20 knots. Seas subsiding 6 to 8 feet with
occasional seas up to 10 feet. Dominant Period 8 seconds. North
swell around 4 feet. Isolated showers.
.TONIGHT...East 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. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. North
swell around 4 Feet. Isolated showers.
.TUESDAY NIGHT...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...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell 4 to 5 feet. Scattered showers.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 12 seconds. North
swell 4 to 8 feet. Scattered showers.

$$

AMZ712-222130-
Coastal Waters of Northern Puerto Rico out 10 NM-
431 AM AST Mon Jan 22 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE Tonight...

.TODAY...East winds 15 to 20 knots. Seas subsiding  5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. Isolated
showers.
.TONIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 8 seconds. Isolated
showers.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Isolated
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 9 seconds. Scattered
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 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 11 seconds. North
swell around 4 feet. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds. North
swell 4 to 7 feet. Scattered showers.

$$

AMZ715-222130-
Coastal Waters of Northern USVI and Culebra out 10 NM-
431 AM AST Mon Jan 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM AST THIS Afternoon...

.TODAY...East winds 15 to 20 knots. Seas subsiding 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 10 seconds. North swell
4 to 5 Feet. Scattered 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.
.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.
.TUESDAY NIGHT...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 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Scattered
showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. Isolated
showers.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds. North
swell 4 to 6 feet. Scattered showers.

$$

AMZ722-222130-
Anegada Passage Southward to 17N-
431 AM AST Mon Jan 22 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE Tonight...

.TODAY...East winds 15 to 20 knots. Seas subsiding 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. North swell
4 to 5 feet. Isolated showers.
.TONIGHT...East 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. Isolated 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.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Scattered
showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Isolated
showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell around 4 feet. Isolated showers.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds. North
swell 4 to 7 feet. Scattered showers.

$$

AMZ725-222130-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
431 AM AST Mon Jan 22 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE Tonight...

.TODAY...East winds 15 to 20 knots. Seas subsiding 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. Northeast
swell around 4 Feet. Scattered showers.
.TONIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 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.
.TUESDAY NIGHT...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 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds. Scattered
showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. Isolated
showers.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northeast swell 4 to 6 feet. Scattered showers.

$$

AMZ732-222130-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
431 AM AST Mon Jan 22 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE Tonight...

.TODAY...East winds 15 to 20 knots. Seas 5 to 7 feet with occasional
seas up to 8 feet. Dominant Period 7 seconds. Isolated showers.
.TONIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 9 feet. Dominant Period 7 seconds. Scattered
showers.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Scattered
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Isolated
showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Isolated
showers.
.THURSDAY...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.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds. North
swell 4 to 7 feet. Scattered showers.

$$

AMZ735-222130-
Coastal Waters of Southern Puerto Rico out 10 NM-
431 AM AST Mon Jan 22 2018

.TODAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds. Scattered
showers.
.TONIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds. Isolated
showers through the night.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 7 seconds. Isolated
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Scattered
showers.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Scattered
showers.

$$

AMZ741-222130-
Mona Passage Southward to 17N-
431 AM AST Mon Jan 22 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE Tonight...

.TODAY...East 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. Isolated showers.
.TONIGHT...East 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. Scattered showers through the night.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 7 seconds. Isolated
showers.
.TUESDAY 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.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 8 seconds. Isolated
showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 10 seconds. East
swell 4 to 5 feet. Scattered showers.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northeast swell 4 to 7 feet. Isolated showers.

$$

AMZ742-222130-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
431 AM AST Mon Jan 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM AST THIS Morning...

.TODAY...East winds 10 to 15 knots. Seas subsiding 4 to 7 feet with
occasional seas up to 8 feet. Dominant Period 10 seconds. North swell
4 to 5 feet.
.TONIGHT...East 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 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 8 seconds. Isolated
showers.
.TUESDAY 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.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Scattered
showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
Scattered showers.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northeast swell 4 to 5 feet. Isolated showers.

$$

AMZ745-222130-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
431 AM AST Mon Jan 22 2018

.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. Scattered showers through the day.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 8 seconds. Scattered
showers.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 7 seconds. Isolated
showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant Period 7 seconds. Isolated showers.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 7 seconds. Isolated showers.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 7 seconds. Scattered showers.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant Period 8 seconds. Scattered showers.

$$



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