Coastal Waters Forecast
Issued by NWS San Juan, PR

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FZCA52 TJSJ 252051
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
451 PM AST Mon Sep 25 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.

AMZ700-261200-
451 PM AST Mon Sep 25 2017

.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...
Long period northwesterly swell from Hurricane Maria will continue to
promote elevated seas of 4-6 feet, especially across the Atlantic
waters north and west of Puerto Rico through midweek. Small craft
will need to exercise caution in these waters. Winds will be easterly
generally 10-15 knots. A weak tropical wave will continue moving
west of the region through tonight, before drier weather and
decreased rain chances in its wake prevail over the local waters
through midweek. Deeper tropical moisture will promote higher rain
chances heading towards the weekend.

$$

AMZ710-261200-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
451 PM AST Mon Sep 25 2017

Small Craft should exercise caution...

.TONIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northwest swell 4 to 5 feet. Thunderstorms likely.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northwest swell 4 to 5 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northwest swell 4 to 5 feet. Slight chance of thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 11 seconds.
Northwest swell 4 to 5 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 12 seconds.
North swell 4 to 5 feet. Slight chance of thunderstorms through
the night.
.THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northeast swell 4 to 5 feet. Slight chance of thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds. North
swell 4 to 5 feet. Slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds. North
swell 4 to 5 feet. Slight chance of thunderstorms.

$$

AMZ712-261200-
Coastal Waters of Northern Puerto Rico out 10 NM-
451 PM AST Mon Sep 25 2017

Small Craft should exercise caution...

.TONIGHT...Southeast winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northwest swell 4 to 5 feet. Slight chance of thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northwest swell 4 to 5 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northwest swell 4 to 5 feet. Slight chance of thunderstorms
through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms
through the day.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant Period 12 seconds.
North swell around 4 feet. Slight chance of thunderstorms through
the night.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell 4 to 5 feet. Slight chance of thunderstorms.
.FRIDAY...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. Chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds. North
swell around 4 feet. Thunderstorms.

$$

AMZ715-261200-
Coastal Waters of Northern USVI and Culebra out 10 NM-
451 PM AST Mon Sep 25 2017

.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms
through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.WEDNESDAY NIGHT...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. Slight chance of thunderstorms through
the night.
.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. Slight chance of thunderstorms.
.FRIDAY...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. Slight chance of thunderstorms.
.SATURDAY...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. Slight chance of thunderstorms.

$$

AMZ722-261200-
Anegada Passage Southward to 17N-
451 PM AST Mon Sep 25 2017

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. East
swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 12 seconds.
Northeast swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northeast swell around 4 feet. Slight chance of thunderstorms
through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northeast swell around 4 feet. Slight chance of thunderstorms
through the day.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant Period 12 seconds.
Northeast swell 4 to 5 feet. Slight chance of thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell 4 to 5 feet. Slight chance of thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell around 4 feet. Slight chance of thunderstorms.
.SATURDAY...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. Thunderstorms likely.

$$

AMZ725-261200-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM-
451 PM AST Mon Sep 25 2017

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. Slight
chance of thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. Slight
chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. Chance
of thunderstorms through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. Slight
chance of thunderstorms through the day.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant Period 11 seconds.
East swell around 4 feet. Slight chance of thunderstorms through
the night.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds. East
swell around 4 feet. Thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. East
swell around 4 feet. Slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds.
Thunderstorms.

$$

AMZ732-261200-
Caribbean Waters of Puerto Rico from 10 NM to 17N-
451 PM AST Mon Sep 25 2017

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 11 seconds. East
swell 4 to 5 feet. Slight chance of thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds. East
swell 4 to 5 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northeast swell 4 to 5 feet. Slight chance of thunderstorms
through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northeast swell 4 to 5 feet. Slight chance of thunderstorms.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell 4 to 5 feet. Slight chance of thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 11 seconds.
Northeast swell 4 to 5 feet. Chance of thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell around 4 feet. Chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northeast swell around 4 feet. Thunderstorms.

$$

AMZ735-261200-
Coastal Waters of Southern Puerto Rico out 10 NM-
451 PM AST Mon Sep 25 2017

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds.
Southeast swell around 4 feet after midnight. Slight chance of
thunderstorms.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Southeast swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Southeast swell around 4 feet. Slight chance of thunderstorms
through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds.
Southeast swell around 4 feet. Slight chance of thunderstorms
through the day.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet
with occasional seas up to 5 feet. Dominant Period 8 seconds.
Southeast swell around 4 feet in the evening. Slight chance of
thunderstorms through the night.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds.
Southeast swell around 4 feet. Slight chance of thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. Slight
chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds.
Thunderstorms.

$$

AMZ741-261200-
Mona Passage Southward to 17N-
451 PM AST Mon Sep 25 2017

Small Craft should exercise caution...

.TONIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northwest swell 4 to 5 feet. Slight chance of thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds.
Northwest swell 4 to 5 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 11 seconds.
Northwest swell 4 to 5 feet. Slight chance of thunderstorms
through the night.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 11 seconds.
Northwest swell 4 to 5 feet.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant Period 11 seconds.
North swell 4 to 5 feet. Slight chance of thunderstorms through
the night.
.THURSDAY...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. Slight chance of thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds. North
swell 4 to 5 feet. Chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant Period 12 seconds. North
swell 4 to 5 feet. Thunderstorms.

$$

AMZ742-261200-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
451 PM AST Mon Sep 25 2017

.TONIGHT...Southeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 5 feet
with occasional seas up to 6 feet. Dominant Period 12 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.WEDNESDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northwest swell around 4 feet.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds.
Northwest swell around 4 feet. Chance of thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds. North
swell around 4 feet. Chance of thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds. North
swell around 4 feet. Thunderstorms likely.
.SATURDAY...East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds. North
swell around 4 feet. Thunderstorms likely.

$$

AMZ745-261200-
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
451 PM AST Mon Sep 25 2017

.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 12 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant Period 11 seconds.
Northwest swell around 4 feet. Slight chance of thunderstorms.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds.
Northwest swell around 4 feet.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds.
.THURSDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 10 seconds. Slight
chance of thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
Period 12 seconds. Slight chance of thunderstorms.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas up to 5 feet. Dominant Period 11 seconds. Slight
chance of thunderstorms.

$$



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