Alert archive / Puerto Rico / Small Craft Advisories in 2017

Small Craft Advisory 21, NWS JSJ

April 3, 2017

NWS JSJ issued this small craft advisory at Apr 3, 2017, 2:21 PM CDT. It took effect at Apr 4, 2017, 7:00 PM CDT. It was in force for 54 hr.

The area

The counties it named.

The facts

Issued
Apr 3, 2017, 2:21 PM CDT (19:21 UTC)
In effect from
Apr 4, 2017, 7:00 PM CDT
Expired
Apr 7, 2017, 1:00 AM CDT
In force
54 hr
Issued by
NWS JSJ

The text

As transmitted.

733 
WHCA72 TJSJ 031921
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
321 PM AST MON APR 3 2017

...ANOTHER PULSE OF NORTHERLY SWELL WILL RAISE SEAS LATE TUESDAY...

.LOW PRESSURE MOVING INTO THE NORTHERN ATLANTIC WILL SEND ANOTHER
SWELL TRAIN INTO AND EAST OF THE LOCAL AREA. THIS WILL MAKE SEAS
IN THE ATLANTIC AND PASSAGES HAZARDOUS.

AMZ710-712-741-040330-
/O.NEW.TJSJ.SC.Y.0021.170405T0000Z-170406T1800Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
321 PM AST MON APR 3 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 2 PM AST
THURSDAY...

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

* WINDS...INCREASING TO 10 TO 20 KNOTS.

* WAVES/SEAS...INCREASING TO 5 TO 7 FEET OCCASIONALLY 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.

&&

$$

SNELL
13 follow-up statements
997 
WHCA72 TJSJ 040116
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
916 PM AST MON APR 3 2017

...ANOTHER PULSE OF NORTHERLY SWELL WILL ARRIVE ACROSS THE LOCAL 
WATERS LATE TUESDAY...

.DISTANT LOW PRESSURE MOVING INTO THE NORTHERN ATLANTIC WILL GENERATE
ANOTHER NORTHERLY SWELL WHICH WILL ARRIVE AND SPREAD ACROSS THE LOCAL
ATLANTIC BY LATE TUESDAY. THIS WILL MAINTAIN HAZARDOUS SEAS OVER THE
ATLANTIC AND LOCAL PASSAGES.

AMZ710-712-741-040930-
/O.CON.TJSJ.SC.Y.0021.170405T0000Z-170406T1800Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
916 PM AST MON APR 3 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM TUESDAY TO
2 PM AST THURSDAY...

* WINDS...INCREASING TO 10 TO 20 KNOTS.

* WAVES/SEAS...INCREASING TO 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
508 
WHCA72 TJSJ 040835
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
435 AM AST TUE APR 4 2017

...ANOTHER PULSE OF NORTHERLY SWELL WILL ARRIVE ACROSS THE LOCAL
WATERS TONIGHT AND INTO WEDNESDAY...

.DISTANT LOW PRESSURE MOVING INTO THE NORTHERN ATLANTIC WILL
GENERATE ANOTHER NORTHERLY SWELL WHICH WILL ARRIVE AND SPREAD
ACROSS THE LOCAL ATLANTIC WATERS TONIGHT. THIS WILL MAINTAIN 
HAZARDOUS SEAS OVER THE ATLANTIC WATERS AND THE LOCAL PASSAGES.

AMZ715-722-742-041645-
/O.EXB.TJSJ.SC.Y.0021.170405T1200Z-170406T1200Z/
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
435 AM AST TUE APR 4 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM WEDNESDAY TO 8 AM
AST THURSDAY...

* WINDS...INCREASING TO 10 TO 20 KNOTS.

* WAVES/SEAS...INCREASING TO 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ710-712-741-041645-
/O.EXT.TJSJ.SC.Y.0021.170405T0000Z-170406T1200Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
435 AM AST TUE APR 4 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM 
AST THURSDAY...

* WINDS...INCREASING TO 10 TO 20 KNOTS.

* WAVES/SEAS...INCREASING 6 TO 8 FEET OCCASIONALLY 10 FEET BY
  WEDNESDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
341 
WHCA72 TJSJ 041402
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
1002 AM AST TUE APR 4 2017

...ANOTHER PULSE OF NORTHERLY SWELL WILL ARRIVE ACROSS THE LOCAL
WATERS TONIGHT AND INTO WEDNESDAY...

.DISTANT LOW PRESSURE MOVING INTO THE NORTHERN ATLANTIC WILL
GENERATE ANOTHER NORTHERLY SWELL WHICH WILL ARRIVE AND SPREAD
ACROSS THE LOCAL ATLANTIC WATERS TONIGHT. THIS WILL MAINTAIN
HAZARDOUS SEAS OVER THE ATLANTIC WATERS AND THE LOCAL PASSAGES.

AMZ710-712-741-042215-
/O.CON.TJSJ.SC.Y.0021.170405T0000Z-170406T1200Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
1002 AM AST TUE APR 4 2017

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

* WINDS...INCREASING TO 10 TO 20 KNOTS.

* WAVES/SEAS...INCREASING 6 TO 8 FEET OCCASIONALLY 10 FEET BY 
  WEDNESDAY NIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ715-722-742-042215-
/O.CON.TJSJ.SC.Y.0021.170405T1200Z-170406T1200Z/
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
1002 AM AST TUE APR 4 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM WEDNESDAY TO
8 AM AST THURSDAY...

* WINDS...INCREASING TO 10 TO 20 KNOTS.

* WAVES/SEAS...INCREASING TO 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
267 
WHCA72 TJSJ 041958
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
358 PM AST TUE APR 4 2017

...ANOTHER PULSE OF NORTHERLY SWELL WILL ARRIVE ACROSS THE LOCAL
WATERS TONIGHT AND INTO WEDNESDAY...

.DISTANT LOW PRESSURE MOVING INTO THE NORTHERN ATLANTIC HAS
GENERATED ANOTHER NORTHERLY SWELL WHICH WILL ARRIVE AND SPREAD 
ACROSS THE LOCAL ATLANTIC WATERS AND CARIBBEAN PASSAGES TONIGHT
THROUGH WEDNESDAY NIGHT. THIS WILL MAINTAIN HAZARDOUS SEAS OVER 
THE ATLANTIC WATERS AND THE LOCAL PASSAGES.

AMZ710-712-741-050400-
/O.CON.TJSJ.SC.Y.0021.170405T0000Z-170406T1200Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
358 PM AST TUE APR 4 2017

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

* WINDS...INCREASING TO 15 TO 20 KNOTS.

* WAVES/SEAS...INCREASING 6 TO 8 FEET OCCASIONALLY 10 FEET BY 
  WEDNESDAY NIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ715-722-742-050400-
/O.CON.TJSJ.SC.Y.0021.170405T1200Z-170406T1200Z/
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
358 PM AST TUE APR 4 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM WEDNESDAY TO
8 AM AST THURSDAY...

* WINDS...15 TO 20 KNOTS.

* WAVES/SEAS...INCREASING TO 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
104 
WHCA72 TJSJ 050124
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
924 PM AST TUE APR 4 2017

...A NORTHERLY SWELL WILL CONTINUE TO SPREAD ACROSS THE LOCAL WATERS
OVERNIGHT THROUGH WEDNESDAY...

.DISTANT LOW PRESSURE MOVING ACROSS THE NORTHERN ATLANTIC HAS GENERATED
ANOTHER NORTHERLY SWELL WHICH WILL ARRIVE AND SPREAD ACROSS THE LOCAL
ATLANTIC WATERS AND CARIBBEAN PASSAGES OVERNIGHT THROUGH WEDNESDAY.
THIS WILL MAINTAIN HAZARDOUS SEAS OVER THE ATLANTIC WATERS AND THE
LOCAL PASSAGES.

AMZ732-050930-
/O.EXB.TJSJ.SC.Y.0021.170405T1800Z-170406T1800Z/
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
924 PM AST TUE APR 4 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM WEDNESDAY TO 2 PM AST
THURSDAY...

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

* WINDS...INCREASING 15 TO 20 KNOTS.

* WAVES/SEAS...INCREASING TO 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ710-712-741-050930-
/O.EXT.TJSJ.SC.Y.0021.000000T0000Z-170407T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
MONA PASSAGE SOUTHWARD TO 17N-
924 PM AST TUE APR 4 2017

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

* WINDS...INCREASING TO 15 TO 20 KNOTS.

* WAVES/SEAS...INCREASING 6 TO 8 FEET OCCASIONALLY 10 FEET BY 
  WEDNESDAY NIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ722-742-050930-
/O.EXT.TJSJ.SC.Y.0021.170405T1200Z-170407T0600Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
924 PM AST TUE APR 4 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM WEDNESDAY TO 2 AM AST
FRIDAY...

* WINDS...INCREASING 15 TO 20 KNOTS.

* WAVES/SEAS...INCREASING TO 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ715-050930-
/O.EXT.TJSJ.SC.Y.0021.170405T1800Z-170406T1800Z/
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
924 PM AST TUE APR 4 2017

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 PM WEDNESDAY TO 2 PM
AST THURSDAY...

* WINDS...INCREASING 15 TO 20 KNOTS.

* WAVES/SEAS...INCREASING TO 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
577 
WHCA72 TJSJ 050830
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
430 AM AST WED APR 5 2017

...A NORTHERLY SWELL WILL CONTINUE TO SPREAD ACROSS THE LOCAL
WATERS TODAY...

.A DISTANT LOW PRESSURE MOVING ACROSS THE NORTHERN ATLANTIC HAS 
GENERATED ANOTHER NORTHERLY SWELL WHICH WILL CONTINUE TO SPREAD 
ACROSS THE LOCAL ATLANTIC WATERS AND PASSAGES THROUGHOUT THE DAY.
THIS WILL MAINTAIN HAZARDOUS SEAS TODAY AND INTO THURSDAY.

AMZ710-741-051630-
/O.EXT.TJSJ.SC.Y.0021.000000T0000Z-170407T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
MONA PASSAGE SOUTHWARD TO 17N-
430 AM AST WED APR 5 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM AST THURSDAY...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ712-051630-
/O.EXT.TJSJ.SC.Y.0021.000000T0000Z-170406T1800Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
430 AM AST WED APR 5 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM AST THURSDAY...

* WINDS...EASTERLY 15 TO 20 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ722-051630-
/O.EXT.TJSJ.SC.Y.0021.170405T1200Z-170407T0000Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-
430 AM AST WED APR 5 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 PM 
AST THURSDAY...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ742-051630-
/O.EXT.TJSJ.SC.Y.0021.170405T1200Z-170406T1800Z/
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
430 AM AST WED APR 5 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 2 PM 
AST THURSDAY...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ715-732-051630-
/O.CON.TJSJ.SC.Y.0021.170405T1800Z-170406T1800Z/
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
430 AM AST WED APR 5 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 
PM AST THURSDAY...

* WINDS...EASTERLY 15 TO 20 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
003 
WHCA72 TJSJ 051432
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
1032 AM AST WED APR 5 2017

...A NORTHERLY SWELL WILL CONTINUE TO SPREAD ACROSS THE LOCAL
WATERS TODAY...

.A DISTANT LOW PRESSURE MOVING ACROSS THE NORTHERN ATLANTIC HAS
GENERATED ANOTHER NORTHERLY SWELL WHICH WILL CONTINUE TO SPREAD
ACROSS THE LOCAL ATLANTIC WATERS AND PASSAGES THROUGHOUT THE DAY.
THIS WILL MAINTAIN HAZARDOUS SEAS TODAY AND INTO THURSDAY.

AMZ710-722-741-060200-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170407T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
ANEGADA PASSAGE SOUTHWARD TO 17N-MONA PASSAGE SOUTHWARD TO 17N-
1032 AM AST WED APR 5 2017

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

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ712-742-060200-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170406T1800Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
1032 AM AST WED APR 5 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM AST
THURSDAY...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ715-732-060200-
/O.CON.TJSJ.SC.Y.0021.170405T1800Z-170406T1800Z/
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
1032 AM AST WED APR 5 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 2 PM AST THURSDAY...

* WINDS...EASTERLY 15 TO 20 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
674 
WHCA72 TJSJ 052256
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
656 PM AST WED APR 5 2017

...A NORTHERLY SWELL WILL CONTINUE TO IMPACT THE LOCAL WATERS 
TONIGHT...

.A DISTANT LOW PRESSURE MOVING ACROSS THE NORTHERN ATLANTIC HAS
GENERATED A NORTHERLY SWELL WHICH WILL CONTINUE TO IMPACT THE 
LOCAL ATLANTIC WATERS AND PASSAGES THROUGHOUT TONIGHT. THIS WILL 
MAINTAIN HAZARDOUS SEAS TONIGHT AND INTO THURSDAY.

AMZ710-722-741-060800-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170407T0000Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
ANEGADA PASSAGE SOUTHWARD TO 17N-MONA PASSAGE SOUTHWARD TO 17N-
656 PM AST WED APR 5 2017

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

* WINDS...EASTERLY 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ712-715-732-742-060800-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170406T1800Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
656 PM AST WED APR 5 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM AST
THURSDAY...

* WINDS...EASTERLY 15 TO 20 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
786 
WHCA72 TJSJ 060840
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
440 AM AST THU APR 6 2017

...A NORTHERLY SWELL WILL CONTINUE TO IMPACT THE LOCAL WATERS
TODAY...

.A NORTHERLY SWELL WILL CONTINUE TO IMPACT THE LOCAL ATLANTIC 
WATERS AND PASSAGES THROUGHOUT THE DAY WITH SWELL ACTION 
SUBSIDING TONIGHT AND INTO FRIDAY.

AMZ722-741-061645-
/O.EXT.TJSJ.SC.Y.0021.000000T0000Z-170407T0100Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-MONA PASSAGE SOUTHWARD TO 17N-
440 AM AST THU APR 6 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM AST THIS EVENING...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ710-061645-
/O.EXT.TJSJ.SC.Y.0021.000000T0000Z-170407T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
440 AM AST THU APR 6 2017

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

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ712-715-732-742-061645-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170406T1800Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
440 AM AST THU APR 6 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM AST THIS
AFTERNOON...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
087 
WHCA72 TJSJ 061426
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
1026 AM AST THU APR 6 2017

...A NORTHERLY SWELL WILL CONTINUE TO IMPACT THE LOCAL WATERS
TODAY...

.A NORTHERLY SWELL WILL CONTINUE TO IMPACT THE LOCAL ATLANTIC
WATERS AND PASSAGES THROUGHOUT THE DAY WITH SWELL ACTION
SUBSIDING TONIGHT AND INTO FRIDAY.

AMZ722-741-062230-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170407T0100Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-MONA PASSAGE SOUTHWARD TO 17N-
1026 AM AST THU APR 6 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM AST THIS
EVENING...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ712-715-732-742-061800-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170406T1800Z/
COASTAL WATERS OF NORTHERN PUERTO RICO OUT 10 NM-
COASTAL WATERS OF NORTHERN USVI AND CULEBRA OUT 10 NM-
CARIBBEAN WATERS OF PUERTO RICO FROM 10 NM TO 17N-
COASTAL WATERS OF NORTHWESTERN PUERTO RICO OUT 10 NM-
1026 AM AST THU APR 6 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM AST THIS
AFTERNOON...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ710-062230-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170407T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
1026 AM AST THU APR 6 2017

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

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
532 
WHCA72 TJSJ 062021
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
421 PM AST THU APR 6 2017

...A NORTHERLY SWELL WILL CONTINUE TO IMPACT THE ATLANTIC WATERS 
TONIGHT SUBSIDING ON FRIDAY...

AMZ722-741-070100-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170407T0100Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-MONA PASSAGE SOUTHWARD TO 17N-
421 PM AST THU APR 6 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM AST THIS
EVENING...

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

AMZ710-070430-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170407T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
421 PM AST THU APR 6 2017

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

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
410 
WHCA72 TJSJ 062053
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
453 PM AST THU APR 6 2017

...A NORTHERLY SWELL WILL CONTINUE TO IMPACT THE ATLANTIC WATERS
TONIGHT SUBSIDING ON FRIDAY...

AMZ722-741-062200-
/O.CAN.TJSJ.SC.Y.0021.000000T0000Z-170407T0100Z/
ANEGADA PASSAGE SOUTHWARD TO 17N-MONA PASSAGE SOUTHWARD TO 17N-
453 PM AST THU APR 6 2017

...SMALL CRAFT ADVISORY IS CANCELLED...

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

$$

AMZ710-070500-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170407T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
453 PM AST THU APR 6 2017

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

* WINDS...EASTERLY 10 TO 15 KNOTS.

* WAVES/SEAS...SEAS 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$
567 
WHCA72 TJSJ 070044
MWWSJU

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
844 PM AST THU APR 6 2017

...A NORTHERLY SWELL WILL CONTINUE TO IMPACT THE OFFSHORE ATLANTIC
WATERS TONIGHT SUBSIDING ON FRIDAY...

AMZ710-070600-
/O.CON.TJSJ.SC.Y.0021.000000T0000Z-170407T0600Z/
ATLANTIC WATERS OF PUERTO RICO AND USVI FROM 10 NM TO 19.5N-
844 PM AST THU APR 6 2017

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

* WINDS...EASTERLY 15 TO 20 KNOTS.

* WAVES/SEAS...SEAS SUBSIDING 5 TO 7 FEET OCCASIONALLY 9 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
AND OR SEAS OF 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.

&&

$$

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 3, 10:03 AM CDT, 4 hours 18 minutes earlier.

Area forecast discussion, Apr 3, 10:03 AM CDT, 4 hours 18 minutes before
Area Forecast Discussion
National Weather Service San Juan PR
1103 AM AST Mon Apr 3 2017

.UPDATE...Showers developed and affected the northeastern sections
of PR and portions of the San Juan metro. Some of these showers
were heavy and persistent enough to cause some minor urban
flooding and river rises. As of this writing most of the showers
have dissipated with the exception of lingering showers near Rio
Grande municipality. A couple of flood advisories were issued for
urban and small stream flooding.

Some changes were made to the very short term to account for the
showers that have been developing across the northeastern and
northern sections of PR, but no changes were made to the afternoon
and evening forecasts. So we are still expecting numerous showers
to develop across the interior and western sections of PR with
isolated to scattered showers elsewhere. These showers across the
interior and west could cause urban and small stream flooding as
it has been raining in those areas for the past few days and
runoff has been occurring quicker with each passing day.

&&

.AVIATION...VFR conds expected through the forecast period with
VCSH across the terminals in PR. SHRA developing across central
and western PR would cause MTN obscurations and TEMPO MVFR conds
are possible at TJMZ between 03/18Z and 03/22Z. Winds will be from
the ENE at 10-15KT with sea breeze variations, decreasing after
03/23Z.

&&

.MARINE...Small craft operators should exercise caution as seas
are expected to be up to 6 feet across the Atlantic waters and
local passages, 2-5 feet elsewhere. Local nearshore buoys are
currently reporting seas of about 5 feet. Wave heights are
expected to remain in this range today and tonight.

&&

.PREV DISCUSSION... /issued 339 AM AST Mon Apr 3 2017/

SYNOPSIS...An area of moisture associated with an old frontal
boundary will enhance shower activity mainly over the interior of
Puerto Rico during the afternoon hours today and Tuesday. Drier
air will filter in from the north and northeast beginning late
Tuesday as high pressure moves into the central Atlantic. Moisture
will begin to return next Sunday when a cold front pushes into
Hispaniola.

SHORT TERM...Rain-free conditions and clear skies prevailed
across the forecast area except over northeast Puerto Rico where
few passing showers were observed. However, Rainfall accumulations
associated with these showers were minimal. Winds were light and
variable with coastal temperatures in the mid to upper 70s.

A mid to upper level ridge will hold across the forecast area
through the end of the workweek. This feature is forecast to erode
Friday and into the upcoming weekend as a broad mid to upper level
trough moves across the western Atlantic with its associated surface
front approaching the local islands Saturday. A building surface
high north of the area will promote east northeast winds through at
least midweek, resulting in near normal temperatures along the north
coast of Puerto Rico.

Therefore, under ridge aloft and near normal precipitable water
expect a seasonable weather pattern with shower development over
central and west Puerto Rico each afternoon due to diurnal heating
and sea breezes.

LONG TERM...A ridge will prevail over the local region from
Wednesday through the incoming weekend. Guidance suggest that this
weather scenario will change as a trough will move from NW. This
weather feature will increase the chances of rain for next Sunday
through Wednesday.

AVIATION...VFR conds expected to prevail at all TAF sites through
03/16z with VCSH possible at JSJ/IST early this morning. SHRA
possible in and around JBQ/JPS between 03/16-22z with brief MVFR
conds. East northeast winds at around 10 knots with some sea breeze
variations expected today.

MARINE...Seas will continue subside today. Seas up to 6 feet are
expected across the Atlantic waters today. There is a High Risk
of Rip Currents for northwest to northeast facing beaches of
Puerto Rico and Culebra until at least this afternoon. There is
also a high risk of rip current for St Thomas and St. John also
until this afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  85  76  85  75 /  40  30  30  30
STT  86  74  86  74 /  20  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...High Rip Current Risk through late tonight for Culebra-Mayaguez
     and Vicinity-North Central-Northeast-Northwest-San Juan and
     Vicinity-Southeast-Western Interior.

VI...High Rip Current Risk through late tonight for St.Thomas...St.
     John...and Adjacent Islands.

AM...High Rip Current Risk through late tonight for Coastal Waters of
     Northern USVI and Culebra out 10 NM-Coastal Waters of
     Southern USVI Vieques and Eastern Puerto Rico out 10 NM.

&&

SHORT TERM...JA
LONG TERM....99
Hazardous weather outlook, Apr 3, 4:41 AM CDT, 9 hours 40 minutes before
Perspectivas sobre condiciones peligrosas del tiempo
Servicio Nacional de Meteorologia San Juan PR
435 AM AST lunes 3 de abril de 2017

AMZ710>745-PRZ001>013-040845-
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-
435 AM AST lunes 3 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

.Inundaciones...Lluvias fuertes pudieran resultar en inundaciones
urbanas y de riachuelos pequenos particularmente sobre el centro
de Puerto Rico

.Olas...Se espera oleaje de 4 a 6 pies a traves de las del
Atlantico y las aguas mar afuera del Caribe asi como los pasajes
locales.

.Corrientes Submarinas...Existe un riesgo alto de corrientes
submarinas para las costas del noroeste a noreste de Puerto Rico y
Culebra.

.Dias dos a siete...martes a domingo

Riesgo de moderado a alto de corrientes submarinas continuara
prevaleciendo a traves de las playas locales, particularmente las
costas Atlantico hasta por los menos el fin de semana entrante.
Hay potencial de inundaciones urbanas y de riachuelos cada tarde
a traves del centro de PR.

.Comunicado sobre informacion reportada por observadores...

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

AMZ715-725-VIZ001-002-040845-
San Tomas, San John e islas adyacentes-
Santa Cruz-Aguas cercanas del Atlantico y aguas costeras adyacentes
del Caribe-
435 AM AST lunes 3 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

.Olas...Se espera oleaje de 4 a 6 pies a traves de las del
Atlantico y las aguas mar afuera del Caribe asi como los pasajes
locales.

.Corrientes submarinas...Existe un riesgo de moderado a alto de
corrientes submarinas para las costas del Atlantico de San Thomas
y San John.

.Dias dos a siete...martes a domingo

Se espera riesgo de moderado a alto de corrientes submarinas a
traves de las playas locales hasta por lo menos el fin de 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 submarinas al Servicio
Nacional de Meteorologia en San Juan.

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 3, 7:39 AM CDTAreal Flood AdvisoryJSJ3 hr
Apr 3, 7:41 AM CDTAreal Flood AdvisoryJSJ2 hr

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.