Alert archive / Puerto Rico / Small Craft Advisories in 2017

Small Craft Advisory 24, NWS JSJ

April 21, 2017

NWS JSJ issued this small craft advisory at Apr 21, 2017, 4:19 PM CDT. It took effect at Apr 22, 2017, 7:00 PM CDT. It was in force for 56 hr.

The area

The counties it named.

The facts

Issued
Apr 21, 2017, 4:19 PM CDT (21:19 UTC)
In effect from
Apr 22, 2017, 7:00 PM CDT
Expired
Apr 25, 2017, 3:03 AM CDT
In force
56 hr
Issued by
NWS JSJ

The text

As transmitted.

519 
WHCA72 TJSJ 212119
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
519 PM AST FRI APR 21 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED BY SATURDAY EVENING...

.A LONG PERIOD NORTHERLY SWELL IS FORECAST TO MOVE ACROSS THE 
ATLANTIC AND CARIBBEAN PASSAGES BY SATURDAY EVENING.

AMZ710-712-715-741-220530-
/O.NEW.TJSJ.SC.Y.0024.170423T0000Z-170424T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
519 PM AST FRI APR 21 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM SATURDAY TO 8 PM AST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A SMALL CRAFT
ADVISORY, WHICH IS IN EFFECT FROM 8 PM SATURDAY TO 8 PM AST
SUNDAY. 

* WINDS...EAST WINDS 15 TO 20 KNOTS. 

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 10 
  FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ722-725-732-742-220530-
/O.NEW.TJSJ.SC.Y.0024.170423T0600Z-170424T0000Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
519 PM AST FRI APR 21 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM AST SUNDAY...

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A SMALL CRAFT
ADVISORY, WHICH IS IN EFFECT FROM 2 AM TO 8 PM AST SUNDAY. 

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$
16 follow-up statements
972 
WHCA72 TJSJ 220130
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
930 PM AST FRI APR 21 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED BY SATURDAY EVENING...

.A LONG PERIOD NORTHERLY SWELL IS FORECAST TO INVADE THE LOCAL
WATERS AND LOCAL PASSAGES BY SATURDAY EVENING.

AMZ710-712-715-741-220930-
/O.CON.TJSJ.SC.Y.0024.170423T0000Z-170424T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
930 PM AST FRI APR 21 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM SATURDAY TO
8 PM AST SUNDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS.

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 10 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS 
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE 
CONDITIONS.

&&

$$

AMZ722-725-732-742-220930-
/O.CON.TJSJ.SC.Y.0024.170423T0600Z-170424T0000Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
930 PM AST FRI APR 21 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM AST SUNDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS 
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE 
CONDITIONS.

&&

$$
847 
WHCA72 TJSJ 220830
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
430 AM AST SAT APR 22 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED BY THIS EVENING... 

.A LONG PERIOD NORTHERLY SWELL IS FORECAST TO INVADE THE LOCAL
WATERS AND LOCAL PASSAGES THIS EVENING.

AMZ710-712-715-741-221630-
/O.CON.TJSJ.SC.Y.0024.170423T0000Z-170424T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
430 AM AST SAT APR 22 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 8 PM AST SUNDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS.

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 10 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ722-725-732-742-221630-
/O.CON.TJSJ.SC.Y.0024.170423T0600Z-170424T0000Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
430 AM AST SAT APR 22 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM AST
SUNDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
693 
WHCA72 TJSJ 221412
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
1012 AM AST SAT APR 22 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED BY THIS EVENING AND
CONTINUING THROUGH THE REST OF THE WEEKEND...

.THE GRADUALLY INCREASING TRADE WINDS AND A LONG PERIOD NORTHERLY
SWELL WILL INVADE THE ATLANTIC WATERS AND SPREAD ACROSS THE LOCAL
PASSAGES THIS EVENING THROUGH SUNDAY.

AMZ710-712-715-741-222215-
/O.CON.TJSJ.SC.Y.0024.170423T0000Z-170424T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
1012 AM AST SAT APR 22 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 8 PM AST SUNDAY...

* WINDS...EAST WINDS INCREASING 15 TO 20 KNOTS WITH OCCASIONALLY
  HIGHER GUSTS.

* WAVES/SEAS...SEAS INCREASING 6 TO 8 FEET WITH OCCASIONAL SEAS 
  UP TO 10 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ722-725-732-742-222215-
/O.CON.TJSJ.SC.Y.0024.170423T0600Z-170424T0000Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
1012 AM AST SAT APR 22 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM AST
SUNDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
861 
WHCA72 TJSJ 222056
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
456 PM AST SAT APR 22 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED BY THIS EVENING AND
CONTINUING THROUGH THE REST OF THE WEEKEND...

.THE GRADUALLY INCREASING TRADE WINDS AND A LONG PERIOD NORTHERLY
SWELL WILL INVADE THE ATLANTIC WATERS AND SPREAD ACROSS THE LOCAL
PASSAGES THIS EVENING THROUGH SUNDAY.

AMZ710-712-715-741-230500-
/O.CON.TJSJ.SC.Y.0024.170423T0000Z-170424T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
456 PM AST SAT APR 22 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 8 PM AST SUNDAY...

* WINDS...EAST WINDS INCREASING 15 TO 20 KNOTS WITH OCCASIONALLY 
  HIGHER GUSTS. 

* WAVES/SEAS...SEAS INCREASING 6 TO 8 FEET WITH OCCASIONAL SEAS 
  UP TO 10 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ722-725-732-742-230500-
/O.CON.TJSJ.SC.Y.0024.170423T0600Z-170424T0000Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
456 PM AST SAT APR 22 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM AST
SUNDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
082 
WHCA72 TJSJ 230103
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
903 PM AST SAT APR 22 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED BY THIS EVENING AND
CONTINUING THROUGH THE REST OF THE WEEKEND...

.THE GRADUALLY INCREASING TRADE WINDS AND A LONG PERIOD NORTHERLY
SWELL WILL INVADE THE ATLANTIC WATERS AND SPREAD ACROSS THE LOCAL
PASSAGES THIS EVENING THROUGH SUNDAY.

AMZ710-712-715-741-230915-
/O.EXT.TJSJ.SC.Y.0024.000000T0000Z-170424T1200Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
903 PM AST SAT APR 22 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM AST MONDAY...

* WINDS...EAST WINDS INCREASING 15 TO 20 KNOTS WITH OCCASIONALLY 
  HIGHER GUSTS. 

* WAVES/SEAS...SEAS INCREASING 6 TO 8 FEET WITH OCCASIONAL SEAS 
  UP TO 10 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ722-725-732-742-230915-
/O.EXT.TJSJ.SC.Y.0024.170423T0600Z-170424T1200Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
903 PM AST SAT APR 22 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 AM SUNDAY TO 8 AM
AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
527 
WHCA72 TJSJ 230758
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
358 AM AST SUN APR 23 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED TO CONTINUE THROUGH EARLY
IN THE WEEK...

.THE INCREASING TRADE WINDS AND A LONG PERIOD NORTHERLY SWELL 
WILL CONTINUE TO INVADE THE ATLANTIC WATERS AND SPREAD ACROSS THE
LOCAL PASSAGES TODAY AND MONDAY.

AMZ710-712-715-722-732-741-231600-
/O.EXT.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
358 AM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ725-742-231600-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170424T1200Z/
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
358 AM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
444 
WHCA72 TJSJ 231507
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
1107 AM AST SUN APR 23 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED TO CONTINUE THROUGH EARLY
IN THE WEEK...

.THE INCREASING TRADE WINDS AND A LONG PERIOD NORTHERLY SWELL
WILL CONTINUE TO INVADE THE ATLANTIC WATERS AND SPREAD ACROSS THE
LOCAL PASSAGES TODAY AND MONDAY.

AMZ710-712-715-722-732-741-232315-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
1107 AM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ725-742-232315-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170424T1200Z/
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
1107 AM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
670 
WHCA72 TJSJ 232055
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
455 PM AST SUN APR 23 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED TO CONTINUE THROUGH EARLY
IN THE WEEK...

.THE INCREASING TRADE WINDS AND A LONG PERIOD NORTHERLY SWELL
WILL CONTINUE TO PROPAGATE ACROSS THE ATLANTIC WATERS AND LOCAL  
PASSAGES.

AMZ710-712-715-722-732-741-240500-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
455 PM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ725-742-240500-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170424T1200Z/
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
455 PM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
488 
WHCA72 TJSJ 240112
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
912 PM AST SUN APR 23 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED TO CONTINUE THROUGH MONDAY
NIGHT...

.MODERATE TO FRESH TRADE WINDS AND A LONG PERIOD NORTHERLY SWELL 
WILL PRODUCE HAZARDOUS MARINE CONDITIONS ACROSS THE ATLANTIC 
WATERS AND LOCAL PASSAGES.

AMZ710-712-715-722-732-741-240915-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
912 PM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 10 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ725-742-240915-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170424T1200Z/
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
912 PM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
869 
WHCA72 TJSJ 240144 AAA
MWWSJU

URGENT - MARINE WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
944 PM AST SUN APR 23 2017

...HAZARDOUS MARINE CONDITIONS EXPECTED TO CONTINUE THROUGH
MONDAY NIGHT...

.MODERATE TO FRESH TRADE WINDS AND A LONG PERIOD NORTHERLY SWELL
WILL PRODUCE HAZARDOUS MARINE CONDITIONS ACROSS THE ATLANTIC
WATERS AND LOCAL PASSAGES.

AMZ742-240945-
/O.EXT.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
944 PM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ710-240945-
/O.EXT.TJSJ.SC.Y.0024.000000T0000Z-170425T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
944 PM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 AM AST TUESDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 10 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ712-715-722-732-741-240945-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
944 PM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 10 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ725-240945-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170424T1200Z/
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-
944 PM AST SUN APR 23 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM AST MONDAY...

* WINDS...EAST WINDS 15 TO 20 KNOTS

* WAVES/SEAS...SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 
  FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
529 
WHCA72 TJSJ 240817
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
417 AM AST MON APR 24 2017

...A DECAYING NORTHERLY SWELL WILL CREATE HAZARDOUS MARINE 
CONDITIONS THROUGH TONIGHT...

AMZ725-240930-
/O.CAN.TJSJ.SC.Y.0024.000000T0000Z-170424T1200Z/
COASTAL WATERS OF SOUTHERN USVI VIEQUES AND EASTERN PUERTO RICO
OUT 10 NM-
417 AM AST MON APR 24 2017

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS CANCELLED THE SMALL
CRAFT ADVISORY. 

$$

AMZ742-240930-
/O.CAN.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
417 AM AST MON APR 24 2017

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS CANCELLED THE SMALL
CRAFT ADVISORY. 

$$

AMZ712-715-722-732-741-241630-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
417 AM AST MON APR 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM AST THIS EVENING...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ710-241630-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
417 AM AST MON APR 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM AST TUESDAY...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
957 
WHCA72 TJSJ 240835 AAA
MWWSJU

URGENT - MARINE WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
435 AM AST MON APR 24 2017

...A DECAYING NORTHERLY SWELL WILL CREATE HAZARDOUS MARINE
CONDITIONS THROUGH TONIGHT...

AMZ712-715-722-732-741-241645-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
435 AM AST MON APR 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM AST THIS
EVENING...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ710-241645-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
435 AM AST MON APR 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM AST
TUESDAY...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
826 
WHCA72 TJSJ 241408
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
1008 AM AST MON APR 24 2017

...A DECAYING NORTHERLY SWELL WILL CONTINUE TO CREATE HAZARDOUS 
MARINE CONDITIONS THROUGH TONIGHT...

AMZ712-715-722-732-741-242215-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
1008 AM AST MON APR 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM AST THIS
EVENING...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ710-242215-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
1008 AM AST MON APR 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM AST
TUESDAY...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
975 
WHCA72 TJSJ 242052
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
452 PM AST MON APR 24 2017

...A DECAYING NORTHERLY SWELL WILL CONTINUE TO CREATE HAZARDOUS
MARINE CONDITIONS THROUGH TONIGHT...

AMZ712-715-722-732-741-250000-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0000Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
MONA PASSAGE SOUTHWARD TO 17N-
452 PM AST MON APR 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM AST THIS
EVENING...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$

AMZ710-250500-
/O.CON.TJSJ.SC.Y.0024.000000T0000Z-170425T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
452 PM AST MON APR 24 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM AST
TUESDAY...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
847 
WHCA72 TJSJ 250032
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
832 PM AST MON APR 24 2017

...A DECAYING NORTHERLY SWELL WILL CONTINUE TO CREATE HAZARDOUS
MARINE CONDITIONS THROUGH TUESDAY MORNING...

AMZ710-250845-
/O.EXT.TJSJ.SC.Y.0024.000000T0000Z-170425T1200Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
832 PM AST MON APR 24 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM AST TUESDAY...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND/OR SEAS 7 FEET OR GREATER ARE EXPECTED TO PRODUCE HAZARDOUS
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS...
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID
NAVIGATING IN THESE CONDITIONS.

&&

$$
530 
WHCA72 TJSJ 250803
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
403 AM AST TUE APR 25 2017

...NORTHERLY SWELL HAS DIMINISHED ACROSS THE ATLANTIC WATERS...

.SEAS ARE CURRENTLY BELOW 7 FEET ACROSS THE ATLANTIC WATERS.
THEREFORE, THE SMALL CRAFT ADVISORY WAS CANCELED.

AMZ710-250915-
/O.CAN.TJSJ.SC.Y.0024.000000T0000Z-170425T1200Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
403 AM AST TUE APR 25 2017

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS CANCELLED THE SMALL
CRAFT ADVISORY. 

HOWEVER, SMALL CRAFTS SHOULD EXERCISE CAUTION DUE TO SEAS UP TO 6
FEET AND SOUTHEAST WINDS UP TO 20 KNOTS.

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS JSJ wrote its last area forecast discussion before this small craft advisory went out at Apr 21, 2:44 PM CDT, 1 hour 35 minutes earlier.

Area forecast discussion, Apr 21, 2:44 PM CDT, 1 hour 35 minutes before
Area Forecast Discussion
National Weather Service San Juan PR
344 PM AST Fri Apr 21 2017

.SYNOPSIS...
An eroding ridge aloft will holds until Saturday afternoon, when a
short wave trough swing by the local region. A mid-level ridge is
inducing a trade wind inversion over the islands. In addition, a
subtropical jet will holds aloft through the weekend. A surface
high pressure north of the Hispaniola over the Western Atlantic
will drift eastward into the Central Atlantic ocean through early
next week.

&&

.SHORT TERM...
An easterly wind flow induced by a high pressure system to the
north of the Hispaniola will result in afternoon convection
across the islands. A mid level ridge is producing a strong trade
wind inversion aloft, which limit the vertical development of
this showers. Shallow clouds with embedded showers are forecast at
least until Saturday morning. However, periods of moderate to
heavy rainfalls can be expected with this showers.

A short wave trough will swing over the region by Saturday
afternoon. As a result, the combination of the available
moisture with the local and diurnal effect will aid in the
development of afternoon cloudiness and some showers over parts of
the central and west interior sections of PR. Model guidance
brings plenty of moisture advection by Sunday Afternoon.

.LONG TERM...Previous Discussion...
Sunday An upper level trough and an associated surface low is
expected to develop across the western Atlantic late in the
weekend into early next week. This will result in a significant
increase in moisture across the northeast Caribbean. In fact, PWAT
values will increase up to 2.20 inches early in the upcoming
week. As the surface high pressure drift slowly toward the central
Atlantic, the local winds will shift from the southeast beginning
late Sunday. This change in wind direction will bring a frontal
boundary remnants from the Caribbean waters across the local
islands Sunday night and early Monday. A moist and unstable
tropical moisture will also move across the region from the
southeast Caribbean. This moisture will result in a significant
increase in shower and thunderstorm activity across the region
Monday and Tuesday. With the ground across Puerto Rico still
saturated from previous days rainfall, urban and small stream
flooding and possible river flooding is likely to occur Monday
Afternoon and Tuesday. Weather conditions will slowly improve by
Wednesday. Due to expected southeast wind flow, warmer than normal
temperatures are expected especially along the northern coastal
municipalities of Puerto Rico Wednesday through at least Friday.

&&

.AVIATION...
VFR conds will prevail durg entire prd at all TAF sites.
-SHRA/SHRA with brief MVFR over the east and central Mtn range of PR
and mainly VCTY TJMZ/TJPS/TJNR and mainly downwind of the USVI til
21/22z...bcmg mostly CLR ovr land areas. Few passing -SHRA/SHRA en
route btw islands durg entire prd. Wnds fm E-NE 15-20 kts BLO
FL100...bcmg fm W and incr w/ht ABV. No sig AVN wx impact attm.

&&

.MARINE...
Tranquil marine conditions will continue today, with east to
northeast winds between 10-15 knots with higher gusts and seas of
less than 5 feet across the coastal waters and local passages. A
northerly swell is forecast to deteriorate the local marine
conditions across the Atlantic and Caribbean Passages from
Saturday afternoon through at least the upcoming week.

&&

AVIATION...VFR conditions are expected to prevail across all TAF
sites through at least 21/16Z. Brief periods of MVFR conditions with
mountain obscurations can be expected across and in the vicinity of
TJMZ in the afternoon. Low level winds will be mainly east at 10 to
15 kts except for sea breeze variations in coastal areas.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  84  74  83  74 /  30  20  20  10
STT  84  72  85  73 /  30  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...None.
VI...None.
AM...None.
&&

SHORT TERM...CAM
LONG TERM....RAM
AVIATION...
Hazardous weather outlook, Apr 21, 4:37 AM CDT, 11 hours 42 minutes before
Perspectivas sobre condiciones peligrosas del tiempo
Servicio Nacional de Meteorologia San Juan PR
454 AM AST viernes 21 de abril de 2017

AMZ710>745-PRZ001>013-220900-
San Juan y Vecindad-Noreste-Sureste-Este Interior-Norte Central-
Interior Central-Ponce y Vecindad-Noroeste-Oeste Interior-
Mayaguez y Vecindad-Suroeste-Culebra-Vieques-Aguas cercanas y
aguas mar afuera del Atlantico y aguas costeras del Caribe-
454 AM AST viernes 21 de abril de 2017

Esta perspectiva sobre las condiciones peligrosas del tiempo es
para Puerto Rico y las aguas costeras adyacentes del Atlantico.

.Dia uno...Hoy y Esta Noche

.Viento...Vientos sostenidos de hasta 20 nudos se esperan a traves
de las aguas cercanas del sur de Puerto Rico.

.Corrientes marinas...Existe un riesgo de moderado de corrientes
marinas a lo largo de la costa del Atlantico de Puerto Rico.

.Dias dos a siete...Sabado a jueves

Riesgo de corrientes marinas de moderado a alto se espera a traves
de las costas del Atlantico durante los proximos dias. Ademas,
existe la probabilidad de inundaciones urbanas y de riachuelos
para principios de la semana entrante.

.Comunicado sobre informacion reportada por observadores...

No se anticipa activacion amplia de observadores, sin embargo se les
exhorta a observadores a reportar corrientes marinas al Servicio
Nacional de Meteorologia en San Juan.

AMZ715-725-VIZ001-002-220900-
San Tomas, San John e islas adyacentes-
Santa Cruz-Aguas cercanas del Atlantico y aguas costeras adyacentes
del Caribe-
454 AM AST viernes 21 de abril de 2017

Esta perspectiva sobre las condiciones del tiempo peligrosas es
para Puerto Rico y las aguas costeras adyacentes del Atlantico.

.Dia uno...Hoy y Esta Noche

.Corrientes marinas...Existe un riesgo moderado de corrientes marinas
a traves de las playas del norte de Santa Cruz.

.Dias dos a siete...Sabado a jueves

Riesgo de corrientes marinas continuara de moderado a fuerte a
traves de algunas de las playas durante los proximos dias. Ademas,
existe la probabilidad de inundaciones urbanas y de riachuelos
durante el proximo fin de semana y principios de la semana entrante.

.Comunicado sobre informacion reportada por observadores...

No se anticipa activacion amplia de observadores, sin embargo se les
exhorta a observadores a reportar corrientes marinas al Servicio
Nacional de Meteorologia en San Juan.

Nearby

Small Craft Advisories in Puerto Rico, 2017Every small craft advisory in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.