National Weather Service Marine Forecast FZCA52 TJSJ

FZCA52 TJSJ 200821
CWFSJU

Coastal Waters Forecast
National Weather Service San Juan PR
342 AM AST Mon Mar 20 2023

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.

AMZ700-202015-
342 AM AST Mon Mar 20 2023

SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS

A surface high pressure northeast of the forecast area will continue
to promote moderate to locally fresh trades across the regional
waters. A northerly swell combined with wind-driven seas will
maintain hazardous conditions through this afternoon in our outer
Atlantic waters and the Caribbean passages. An improvement in marine
conditions is expected by Tuesday.


AMZ711-202015-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
342 AM AST Mon Mar 20 2023

SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING


TODAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 7 feet with occasional seas up to 9 feet. Dominant period 11
seconds. Isolated showers.

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant
period 11 seconds. Scattered showers.

TUESDAY
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 10 seconds. Scattered showers.

TUESDAY NIGHT
East winds 15 to 20 knots with gusts up to 25
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 7 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,
increasing to 10 seconds. Scattered showers.

THURSDAY
Northeast winds 10 to 15 knots. Gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 10 seconds. Isolated showers.

FRIDAY
Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 10 seconds. Scattered showers.


AMZ712-202015-
Coastal Waters of Northern Puerto Rico out 10 NM-
342 AM AST Mon Mar 20 2023

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
East winds 15 to 20 knots, increasing to east 15 to 20
knots with gusts up to 25 knots this afternoon. Seas 4 to 6 feet
with occasional seas up to 8 feet. Dominant period 12 seconds.
Isolated showers.

TONIGHT
East winds 10 to 15 knots with gusts up to 25 knots,
diminishing to east 10 to 15 knots after midnight. Seas 4 to 6
feet with occasional seas up to 8 feet. Dominant period 11
seconds. Scattered showers.

TUESDAY
East winds 15 to 20 knots. Gusts up to 30 knots. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 11
seconds. Scattered showers.

TUESDAY NIGHT
East winds 15 to 20 knots with gusts up to 25
knots, diminishing to east 15 to 20 knots after midnight. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 7
seconds. Numerous showers.

WEDNESDAY
East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 6 seconds,
increasing to 10 seconds. Numerous showers.

THURSDAY
Northeast winds 10 to 15 knots. Gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 10 seconds. Isolated showers.

FRIDAY
Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Scattered showers.


AMZ716-202015-
Coastal Waters from Cabo San Juan to the waters between Anegada
Island and Virgin Gorda and North 10 NM-
342 AM AST Mon Mar 20 2023

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
East winds 10 to 15 knots with gusts up to 25 knots. Seas
4 to 6 feet with occasional seas up to 8 feet. Dominant period 11
seconds. Scattered showers.

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 11 seconds. Scattered showers.

TUESDAY
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 11 seconds. Scattered showers.

TUESDAY NIGHT
East winds 15 to 20 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Numerous showers.

WEDNESDAY
East winds 15 to 20 knots, becoming northeast. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 7
seconds, increasing to 11 seconds. Scattered showers.

THURSDAY
Northeast winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds. Isolated
showers.

FRIDAY
Northeast winds 15 to 20 knots, increasing to northeast
15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 10 seconds.
Scattered showers.


AMZ723-202015-
Anegada Passage east of Virgin Gorda and Saint Croix south to 17N-
342 AM AST Mon Mar 20 2023

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM AST THIS AFTERNOON


TODAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 7 feet with occasional seas up to 9 feet. Dominant period 10
seconds. Scattered showers.

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 7 seconds. Isolated showers.

TUESDAY
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 7 seconds. Isolated showers.

TUESDAY NIGHT
East winds 15 to 20 knots with gusts up to 25
knots. Seas 4 to 6 feet with occasional seas up to 8 feet.
Dominant period 7 seconds. Scattered showers.

WEDNESDAY
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 7 seconds. Isolated showers.

THURSDAY
Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 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 10 seconds. Isolated
showers.


AMZ726-202015-
Coastal waters east of Puerto Rico, around Vieques, and around and
just north of Culebra and Saint John-
342 AM AST Mon Mar 20 2023

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
East winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 11 seconds.
Scattered showers.

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 11 seconds. Isolated showers.

TUESDAY
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 10 seconds. Scattered showers.

TUESDAY NIGHT
East winds 15 to 20 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Numerous showers.

WEDNESDAY
East winds 15 to 20 knots, becoming northeast. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 7
seconds. Scattered showers.

THURSDAY
Northeast winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.

FRIDAY
Northeast winds 15 to 20 knots, increasing to northeast
15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Scattered showers.


AMZ733-202015-
Caribbean waters of Puerto Rico from 10 NM to 17N, including the
coastal waters of Saint Croix-
342 AM AST Mon Mar 20 2023

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas
4 to 6 feet with occasional seas up to 8 feet. Dominant period 7
seconds. Scattered showers.

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 6 seconds. Scattered showers.

TUESDAY
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 6 seconds. Isolated showers.

TUESDAY NIGHT
East winds 15 to 20 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 6 seconds. Scattered showers.

WEDNESDAY
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 6 seconds. Scattered showers.

THURSDAY
Northeast winds 15 to 20 knots with gusts up to 30
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Scattered showers.

FRIDAY
Northeast winds 15 to 20 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Isolated showers.


AMZ735-202015-
Coastal Waters of Southern Puerto Rico out 10 NM-
342 AM AST Mon Mar 20 2023

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas
3 to 5 feet with occasional seas up to 6 feet. Dominant period 7
seconds. Isolated showers.

TONIGHT
East winds 10 to 15 knots. Gusts up to 25 knots in the
evening. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 7 seconds. Isolated showers.

TUESDAY
East winds 15 to 20 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 7 seconds. Isolated
showers.

TUESDAY NIGHT
East winds 15 to 20 knots, becoming northeast
after midnight. Seas 3 to 5 feet with occasional seas up to 6
feet. Dominant period 7 seconds. Numerous showers.

WEDNESDAY
East winds 15 to 20 knots, becoming northeast. Seas 3
to 5 feet with occasional seas up to 6 feet. Dominant period 7
seconds. Scattered showers.

THURSDAY
Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 7 seconds. Isolated showers.

FRIDAY
Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 7 seconds. Isolated showers.


AMZ741-202015-
Mona Passage Southward to 17N-
342 AM AST Mon Mar 20 2023

SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM AST THIS AFTERNOON


TODAY
East winds 15 to 20 knots with gusts up to 25 knots. Seas
5 to 7 feet with occasional seas up to 9 feet. Dominant period 11
seconds. Isolated showers.

TONIGHT
East winds 15 to 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 11 seconds. Scattered showers.

TUESDAY
East winds 10 to 15 knots with gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 11 seconds.

TUESDAY NIGHT
East winds 15 to 20 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 11 seconds. Scattered showers.

WEDNESDAY
East winds 15 to 20 knots with gusts up to 30 knots.
Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant
period 7 seconds. Scattered showers.

THURSDAY
Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 4 to 6 feet with occasional seas up to 8 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 10 seconds. Isolated
showers.


AMZ742-202015-
Coastal Waters of Northwestern Puerto Rico out 10 NM-
342 AM AST Mon Mar 20 2023

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
East winds 5 to 10 knots. Seas 4 to 6 feet with
occasional seas up to 8 feet. Dominant period 11 seconds.

TONIGHT
East winds 5 to 10 knots. Seas 3 to 5 feet with
occasional seas up to 6 feet. Dominant period 11 seconds.
Scattered showers.

TUESDAY
Northeast winds 5 to 10 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.

TUESDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 11 seconds.
Isolated showers.

WEDNESDAY
Northeast winds 15 to 20 knots with gusts up to 25
knots. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 11 seconds. Scattered showers.

THURSDAY
Northeast winds 10 to 15 knots. Gusts up to 25 knots.
Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant
period 10 seconds. Isolated showers.

FRIDAY
Northeast winds 10 to 15 knots with gusts up to 25
knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Dominant period 10 seconds. Isolated showers.


AMZ745-202015-
Coastal Waters of Southwestern Puerto Rico out 10 NM-
342 AM AST Mon Mar 20 2023

TODAY
East winds 15 to 20 knots, becoming southeast this
afternoon. Seas 2 to 4 feet with occasional seas around 5 feet.
Dominant period 10 seconds.

TONIGHT
East winds 10 to 15 knots. Seas 2 to 4 feet with
occasional seas around 5 feet. Dominant period 10 seconds.
Isolated showers.

TUESDAY
East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant
period 10 seconds.

TUESDAY NIGHT
East winds 10 to 15 knots, becoming northeast
after midnight. Seas 1 to 3 feet. Dominant period 10 seconds.
Isolated showers.

WEDNESDAY
East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant
period 7 seconds. Numerous showers.

THURSDAY
Northeast winds 10 to 15 knots. Seas 1 to 3 feet.
Dominant period 11 seconds. Scattered showers.

FRIDAY
Northeast winds 5 to 10 knots. Seas 1 to 3 feet.
Dominant period 10 seconds. Scattered showers.