Alert archive / Puerto Rico / Small Craft Advisories in 2018

Small Craft Advisory 41, NWS JSJ

October 2, 2018

NWS JSJ issued this small craft advisory at Oct 2, 2018, 4:17 PM CDT. It took effect at Oct 3, 2018, 1:00 PM CDT. It was in force for 62 hr.

The area

The counties it named.

The facts

Issued
Oct 2, 2018, 4:17 PM CDT (21:17 UTC)
In effect from
Oct 3, 2018, 1:00 PM CDT
Expired
Oct 6, 2018, 3:00 AM CDT
In force
62 hr
Issued by
NWS JSJ

The text

As transmitted.

008 
WHCA72 TJSJ 022117
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
517 PM AST Tue Oct 2 2018

...Hazardous seas expected across the regional waters on
Wednesday...

.A long period northerly swell generated by Tropical Storm Leslie
will move across the Atlantic waters on Wednesday afternoon and
spread across the Caribbean Passages by Wednesday evening.
Rough seas will continue through the end of the week.

AMZ710-030530-
/O.NEW.TJSJ.SC.Y.0041.181003T1800Z-181006T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
517 PM AST Tue Oct 2 2018

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

The National Weather Service in San Juan has issued a Small Craft
Advisory, which is in effect from 2 PM Wednesday to 2 AM AST
Saturday. 

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas 5 to 7 feet with occasional seas up to 9 feet.
  Increasing between 8 to 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 more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-715-722-725-732-741-742-030530-
/O.NEW.TJSJ.SC.Y.0041.181004T0000Z-181006T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Coastal Waters of Northern USVI and Culebra out 10 NM-
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-
Mona Passage Southward to 17N-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
517 PM AST Tue Oct 2 2018

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

The National Weather Service in San Juan has issued a Small Craft
Advisory, which is in effect from 8 PM Wednesday to 2 AM AST
Saturday. 

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 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 more 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
078 
WHCA72 TJSJ 030114
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
914 PM AST Tue Oct 2 2018

...Hazardous seas expected across the regional waters on
Wednesday...

.A long period northerly swell generated by Tropical Storm Leslie
will move across the Atlantic waters on Wednesday afternoon and
spread across the Caribbean Passages by Wednesday evening. Rough
seas will continue through the end of the week.

AMZ710-030915-
/O.CON.TJSJ.SC.Y.0041.181003T1800Z-181006T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
914 PM AST Tue Oct 2 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM WEDNESDAY TO
2 AM AST SATURDAY...

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas 5 to 7 feet with occasional seas up to 9 feet. 
  Increasing between 8 to 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 more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-715-722-725-732-741-742-030915-
/O.CON.TJSJ.SC.Y.0041.181004T0000Z-181006T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Coastal Waters of Northern USVI and Culebra out 10 NM-
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-
Mona Passage Southward to 17N-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
914 PM AST Tue Oct 2 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 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 more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
973 
WHCA72 TJSJ 030832
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
432 AM AST Wed Oct 3 2018

...Hazardous seas expected across the regional waters on
later today...

.A long period northerly swell generated by Tropical Storm Leslie
will move across the Atlantic waters and Caribbean Passages this 
afternoon. Hazardous seas will continue through at least the end 
of the work week.

AMZ710-031645-
/O.CON.TJSJ.SC.Y.0041.181003T1800Z-181006T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
432 AM AST Wed Oct 3 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas 5 to 7 feet with occasional seas up to 9 feet.
  Increasing between 8 to 10 feet tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-715-722-725-732-741-742-031645-
/O.CON.TJSJ.SC.Y.0041.181004T0000Z-181006T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Coastal Waters of Northern USVI and Culebra out 10 NM-
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-
Mona Passage Southward to 17N-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
432 AM AST Wed Oct 3 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 2 AM AST SATURDAY...

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
937 
WHCA72 TJSJ 030834 CCA
MWWSJU

URGENT - MARINE WEATHER MESSAGE...CORRECTED
National Weather Service San Juan PR
434 AM AST Wed Oct 3 2018

...Hazardous seas expected across the regional waters later today...

.A long period northerly swell generated by Tropical Storm Leslie
will move across the Atlantic waters and Caribbean Passages this 
afternoon. Hazardous seas will continue through at least the end 
of the work week.

AMZ710-031645-
/O.CON.TJSJ.SC.Y.0041.181003T1800Z-181006T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
434 AM AST Wed Oct 3 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas 5 to 7 feet with occasional seas up to 9 feet.
  Increasing between 8 to 10 feet tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-715-722-725-732-741-742-031645-
/O.CON.TJSJ.SC.Y.0041.181004T0000Z-181006T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Coastal Waters of Northern USVI and Culebra out 10 NM-
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-
Mona Passage Southward to 17N-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
434 AM AST Wed Oct 3 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 2 AM AST SATURDAY...

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
378 
WHCA72 TJSJ 031415
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1015 AM AST Wed Oct 3 2018

...Hazardous seas expected across the regional waters later
today...

.A long period northerly swell generated by Tropical Storm Leslie
has moved across the Atlantic waters and Caribbean Passages.
Therefore, hazardous seas will continue through at least the end 
of the work week.

AMZ710-032215-
/O.CON.TJSJ.SC.Y.0041.181003T1800Z-181006T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1015 AM AST Wed Oct 3 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas 5 to 7 feet with occasional seas up to 9 feet. 
  Increasing between 8 to 10 feet tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-715-722-725-732-741-742-032215-
/O.CON.TJSJ.SC.Y.0041.181004T0000Z-181006T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Coastal Waters of Northern USVI and Culebra out 10 NM-
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-
Mona Passage Southward to 17N-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
1015 AM AST Wed Oct 3 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 2 AM AST SATURDAY...

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
652 
WHCA72 TJSJ 032029
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
429 PM AST Wed Oct 3 2018

...Hazardous seas expected across the regional waters later
today...

.A long period northerly swell generated by Tropical Storm Leslie
has moved across the Atlantic waters and Caribbean Passages.
Therefore, hazardous seas will continue through at least the end
of the work week.

AMZ710-040430-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
429 PM AST Wed Oct 3 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas 5 to 7 feet with occasional seas up to 9 feet. 
  Increasing between 8 to 10 feet tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-715-722-725-732-741-742-040430-
/O.CON.TJSJ.SC.Y.0041.181004T0000Z-181006T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Coastal Waters of Northern USVI and Culebra out 10 NM-
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-
Mona Passage Southward to 17N-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
429 PM AST Wed Oct 3 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
570 
WHCA72 TJSJ 040238
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1038 PM AST Wed Oct 3 2018

...Hazardous seas expected across the regional waters...

.A long period northerly swell generated by Tropical Storm Leslie
has moved across the Atlantic waters and Caribbean Passages.
Hazardous seas will continue through at least the end of the work
week.

AMZ715-722-725-732-041045-
/O.EXT.TJSJ.SC.Y.0041.000000T0000Z-181006T0000Z/
Coastal Waters of Northern USVI and Culebra out 10 NM-
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-
1038 PM AST Wed Oct 3 2018

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

* WINDS...East to southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-741-742-041045-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Mona Passage Southward to 17N-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
1038 PM AST Wed Oct 3 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ710-041045-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1038 PM AST Wed Oct 3 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 8 to 10 feet tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
864 
WHCA72 TJSJ 040242
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1042 PM AST Wed Oct 3 2018

...Hazardous seas expected across the regional waters...

.A long period northerly swell generated by Hurricane Leslie has 
moved across the Atlantic waters and Caribbean Passages. Hazardous
seas will continue through at least the end of the work week.

AMZ715-722-725-732-041045-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0000Z/
Coastal Waters of Northern USVI and Culebra out 10 NM-
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-
1042 PM AST Wed Oct 3 2018

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

* WINDS...East to southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ710-712-741-742-041045-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
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-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
1042 PM AST Wed Oct 3 2018

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

* WINDS...Southeast winds 5 to 10 knots.

* SEAS...Seas increasing between 6 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
756 
WHCA72 TJSJ 040838
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
438 AM AST Thu Oct 4 2018

...Hazardous seas expected across the regional waters...

.A long period northerly swell generated by Hurricane Leslie has
moved across the Atlantic waters and Caribbean Passages.
Hazardous seas are expected to end by later on Sunday in all 
areas.

AMZ715-722-732-041645-
/O.EXT.TJSJ.SC.Y.0041.000000T0000Z-181005T1800Z/
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-
438 AM AST Thu Oct 4 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ725-041645-
/O.EXT.TJSJ.SC.Y.0041.000000T0000Z-181005T0000Z/
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico
out 10 NM-
438 AM AST Thu Oct 4 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas diminishing between 4 to 7 feet by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ710-741-041645-
/O.EXT.TJSJ.SC.Y.0041.000000T0000Z-181007T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Mona Passage Southward to 17N-
438 AM AST Thu Oct 4 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM AST SUNDAY...

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas increasing between 6 to 10 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-041645-
/O.EXT.TJSJ.SC.Y.0041.000000T0000Z-181007T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
438 AM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ742-041645-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
438 AM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
811 
WHCA72 TJSJ 041413
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1013 AM AST Thu Oct 4 2018

...Hazardous seas expected across the regional waters...

.A long period northerly swell generated by Hurricane Leslie has
moved across the Atlantic waters and Caribbean Passages.
Hazardous seas are expected to end in all areas by Sunday 
afternoon.

AMZ715-722-732-042215-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181005T1800Z/
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-
1013 AM AST Thu Oct 4 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ725-042215-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181005T0000Z/
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico
out 10 NM-
1013 AM AST Thu Oct 4 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas diminishing between 4 to 7 feet by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ710-741-042215-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181007T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Mona Passage Southward to 17N-
1013 AM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas increasing between 6 to 10 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ742-042215-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
1013 AM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-042215-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181007T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
1013 AM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
924 
WHCA72 TJSJ 042000
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
400 PM AST Thu Oct 4 2018

...Hazardous seas across the regional waters...

.A long period northerly swell generated by Hurricane Leslie has
moved across the Atlantic waters and Caribbean Passages.
Hazardous seas are expected to end in all areas by Sunday
afternoon.

AMZ715-722-732-050400-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181005T1800Z/
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-
400 PM AST Thu Oct 4 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ725-050000-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181005T0000Z/
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico
out 10 NM-
400 PM AST Thu Oct 4 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas diminishing between 4 to 7 feet by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ710-741-050400-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181007T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
Mona Passage Southward to 17N-
400 PM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas increasing between 6 to 10 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ742-050400-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
400 PM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ712-050400-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181007T0600Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
400 PM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
546 
WHCA72 TJSJ 050101
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
901 PM AST Thu Oct 4 2018

...Hazardous seas across the regional waters...

.A long period northerly swell generated by Hurricane Leslie has
moved across the Atlantic waters and Caribbean Passages.
Hazardous seas are expected to end in all areas by Sunday
afternoon.

AMZ710-712-741-050915-
/O.EXT.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
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-
901 PM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas increasing between 6 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ715-722-732-050915-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181005T1800Z/
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-
901 PM AST Thu Oct 4 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ742-050915-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
901 PM AST Thu Oct 4 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas between 6 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
556 
WHCA72 TJSJ 050807
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
407 AM AST Fri Oct 5 2018

...Hazardous seas across the regional waters...

.A long period northerly swell generated by Tropical Storm Leslie 
has moved across the Atlantic waters and Caribbean Passages. 
Hazardous seas are expected to diminish today through Saturday.

AMZ715-722-732-051615-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181005T1800Z/
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-
407 AM AST Fri Oct 5 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ710-712-741-742-051615-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
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-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
407 AM AST Fri Oct 5 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas increasing between 5 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
855 
WHCA72 TJSJ 051419
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1019 AM AST Fri Oct 5 2018

...Hazardous seas across the regional waters...

.A long period northerly swell generated by Tropical Storm Leslie
has moved across the Atlantic waters and Caribbean Passages.
Hazardous seas are expected to diminish through Saturday.

AMZ715-722-732-051800-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181005T1800Z/
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-
1019 AM AST Fri Oct 5 2018

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

* WINDS...East to southeast winds 5 to 15 knots.

* SEAS...Seas between 5 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

AMZ710-712-741-742-052230-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
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-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
1019 AM AST Fri Oct 5 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas increasing between 5 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
149 
WHCA72 TJSJ 052031
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
431 PM AST Fri Oct 5 2018

...Hazardous seas across the regional waters...

.A long period northerly swell generated by Tropical Storm Leslie
has moved across the Atlantic waters and Caribbean Passages.
Hazardous seas are expected to diminish through Saturday.

AMZ710-712-741-742-060445-
/O.CON.TJSJ.SC.Y.0041.000000T0000Z-181006T0600Z/
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-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
431 PM AST Fri Oct 5 2018

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

* WINDS...Southeast winds 5 to 15 knots.

* SEAS...Seas increasing between 5 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
971 
WHCA72 TJSJ 060104
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
904 PM AST Fri Oct 5 2018

...Seas up to 7 feet continue across the Atlantic waters and Mona
Passage...

.Seas are expected to diminish overnight across the Atlantic 
waters and the Mona Passage. However, small craft operators 
should exercise caution due to seas up to 6 feet.

AMZ710-712-741-742-060800-
/O.EXT.TJSJ.SC.Y.0041.000000T0000Z-181006T0800Z/
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-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
904 PM AST Fri Oct 5 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM AST SATURDAY...

* WINDS...East winds 10 to 15 knots.

* SEAS...Seas increasing between 5 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas of 7 feet or more are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$
815 
WHCA72 TJSJ 060802
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
402 AM AST Sat Oct 6 2018

...Seas have come down below 7 feet and all small craft advisories
are cancelled...

.As tropical storm Leslie diminishes in strength and edges away
from the area, the swell arriving in the local area is 
decreasing. Seas north of the area are still 7 feet or more, but 
7 foot seas are not expected in the local Atlantic waters or 
passages.

AMZ710-712-741-742-060915-
/O.EXP.TJSJ.SC.Y.0041.000000T0000Z-181006T0800Z/
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-
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
402 AM AST Sat Oct 6 2018

...SMALL CRAFT ADVISORY HAS EXPIRED...

Seas have subsided to less than 7 feet.

$$

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 Oct 2, 9:43 AM CDT, 6 hours 34 minutes earlier.

Area forecast discussion, Oct 2, 9:43 AM CDT, 6 hours 34 minutes before
Area Forecast Discussion
National Weather Service San Juan PR
Issued by National Weather Service Melbourne FL
1043 AM AST Tue Oct 2 2018

.UPDATE...

Morning sounding from TJSJ shows a deep layer of light winds (10
knots or less) thru 25k ft. Satellite imagery shows strong sfc
heating occurring this morning with development of cu field over
the interior. Sea breezes will form along the coasts and propagate
inland resulting in collisions and formation of scattered to
numerous thunderstorms this afternoon over the central mountain
range. Steering flow is light but a few showers and storms will
affect some coastal communities. Little change to current
forecast.

&&

.AVIATION...
VFR conds will prevail thru at least 16Z. However, SCT-NMRS TSRA
will develop over the central mountain range this afternoon which
may produce VCTS at TJSJ/TJMZ/TJSJ and TJPS between 18Z-22Z as
indicated in the current TAFs. Brief MVFR conds are possible if
storms drift briefly over those terminals. Light winds (10 knots
or less) are expected below FL250.

&&

.MARINE...
No significant changes to current coastal waters forecast. Light
east to southeast trade winds so primary contribution to wave
height will be a moderate N/NE swell of 3 to 5 feet from distant
Tropical Storm Leslie. Seas occasionally up to 6 feet possible
well offshore the north coast.

&&

.PREV DISCUSSION... /issued 305 AM AST Tue Oct 2 2018/

SYNOPSIS...Upper level ridge will linger across the region but
will erode today, as a broad trough spread over the Atlantic
deepens and become amplified across the southwest Atlantic. A
subtropical jet segment will move just north of the region to
maintain divergence aloft and unstable conditions today. In the
low levels, distant Tropical Storm Leslie and a broad developing
surface trough across the central and eastern Caribbean will
continue to disrupt the local synoptic pattern and maintain light
trade winds across the area through at least Wednesday. By the end
of the work week, a tropical wave is forecast to enter the eastern
Caribbean and increase low level moisture transport and instability.
This will interact with an elongated upper-level trough resulting
in a wet and unstable weather pattern across the forecast area.

SHORT TERM...Today through Thursday...

The local islands lies between a broad area of low pressure across
the Central Caribbean and tropical storm Leslie northeast of the
region. This setup will maintain a weak steering flow across the
Northeast Caribbean over the next few days. In addition, a mid level
trough is forecast to develop southwest of Puerto Rico later today
into Wednesday, providing good upper level dynamics across the local
area. Both factors, the weak steering flow and the good ventilation
aloft will favor the development of intense showers and thunderstorms
across the Cordillera Central and interior portions of Puerto Rico
each afternoon. In contrast, minimal shower activity is forecast
across the U.S. Virgin Islands through midweek, however high level
clouds will maintain the skies partly cloudy.

A tropical wave located east of the Windward Islands this morning is
forecast to approach the local islands by Thursday. This will bring
additional moisture and instability across the U.S. Virgin Islands
and Puerto Rico. Therefore, a few rounds of scattered showers will
be likely on Thursday as the wave crosses the local area.

LONG TERM...Friday through Wednesday...

Recent model guidance continued to suggest the upper levels
to become more favorable and unstable by Friday as the high
pressure ridge erodes and an elongated trough becomes amplified
and sags just north and west of the region. This along with
increasing tropical moisture accompanying a tropical wave and
local and diurnal effects will result in increased early morning
and afternoon convection across the islands and coastal waters
each day and into the early part of the upcoming weekend.

The instability aloft and the moisture associated with the tropical
wave, along with a broad surface trough forecast to develop and
lift northwards across the central and eastern caribbean, should
maintain a fairly moisture pattern across the region through at
least Saturday. Although some improvement is expected by Sunday
and into the following week, there still remain uncertainties in
the location and timing of the developing surface trough and
associated moisture field. However, a fairly moist and unstable
weather pattern will remain possible through Saturday with gradual
improvement in the weather conditions on Sunday and into early
next week, as the mid to upper level ridge is to build overhead
once again and help to erode moisture transport and pooling across
the forecast area. Another tropical wave is forecast to approach
the region by late Tuesday or Wednesday.

AVIATION...VFR conds thru at least 02/17Z. However, VCTS are
possible at the TJSJ,TJMZ,TJSJ and TJPS between 18Z-22Z as TSRA are
forecast to develop over the Cordillera Central. Brief MVFR conds
can't ruled out this afternoon if storms drift briefly over the
terminals. Light winds are expected below FL250 thru the forecast
period.

MARINE...Seas will continue to subside today. Light east to
southeast trade winds and overall seas of 3 to 5 feet can be
expected through today. However, another pulse of northeasterly
swell action is forecast to arrive and create hazardous marine
conditions by Wednesday through at least Thursday.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  89  77  88  78 /  30  30  40  30
STT  87  76  87  77 /  30  40  30  40

&&

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

&&

KELLY
Hazardous weather outlook, Oct 2, 5:12 AM CDT, 11 hours 5 minutes before
Perspectivas sobre Condiciones Peligrosas del Tiempo
Servicio Nacional de Meteorologia San Juan PR
447 AM AST martes 2 de octubre de 2018

AMZ710>745-PRZ001>013-030900-
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 lejanas a la costa del Atlantico y Caribe-
447 AM AST martes 2 de octubre de 2018

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

.Tronadas...Existe la probabilidad de tronadas con fuertes lluvias y
vientos en rafagas breves esta tarde a traves de porciones de la
Cordillera Central.

.Inundaciones...Fuertes lluvias pudieran resultar en inundaciones
urbanas y de riachuelos, especialmente a traves de porciones del
este interior, central interior, oeste interior y oeste de Puerto
Rico esta tarde.

.Corrientes marinas...Existe riesgo moderado de corrientes marinas
para la costa noroeste, norte y noreste de Puerto Rico.

.Dias dos a siete...miercoles a lunes

Aguaceros y tronadas inducidas por el calor diurno ocurrira cada
tarde, por lo tanto, inundaciones urbanas y de riachuelos seran
posibles nuevamente a lo largo del centro de Puerto Rico el
miercoles. Un patron de tiempo lluvioso e inestable es probable para
la segunda parte de la semana. Otra marejada del norte se pronostica
que invada las aguas locales del Atlantico y pasaje del Caribe tarde
el miercoles hacia el jueves, creando oleaje peligroso.

.Comunicado sobre informacion reportada por observadores...

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

AMZ715-725-VIZ001-002-030900-
San Tomas, San John e Islas Adyacentes-Santa Cruz- Aguas cercanas
del Atlantico y aguas costeras adyacentes del Caribe-
447 AM AST martes 2 de octubre de 2018

Esta perspectiva sobre las condiciones del tiempo peligrosas es para
las Islas Virgenes Americanas y las aguas costeras adyacentes.

.Dia Uno...Hoy y esta Noche

.Corrientes marinas...Existe riesgo alto de corrientes marinas
para la costa noroeste de San Tomas y las costas norte y este de
Santa Cruz.

.Dias dos a siete...miercoles a lunes

Un patron de tiempo lluvioso e inestable es probable para la segunda
parte de la semana. Otra marejada del norte se pronostica que invada
las aguas locales del Atlantico y pasaje del Caribe tarde el
miercoles hacia el jueves, creando oleaje peligroso.

.Comunicado sobre informacion reportada por observadores...

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

In the hours before

Special weather statement, Oct 2, 2:18 PM CDT, 1 hour 59 minutes before
Special Weather Statement
National Weather Service San Juan PR
318 PM AST TUE OCT 2 2018

PRZ004-006-022015-
Central Interior-Eastern Interior-
318 PM AST TUE OCT 2 2018

...A STRONG THUNDERSTORM WILL AFFECT COMERIO...AGUAS BUENAS...
CAGUAS...CAYEY...BARRANQUITAS...CIDRA AND AIBONITO MUNICIPALITIES...

At 316 PM AST, a strong thunderstorm was located from  Cidra to
Aibonito. The storm is nearly stationary. This thunderstorm can
produce winds in excess of 30 mph. The thunderstorm is also
producing torrential rainfall, frequent lightning and could produce
small hail.

The torrential rainfall may cause localized flooding. Do not drive
your vehicle through flooded roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 1812 6608 1809 6617 1811 6628 1823 6625
      1826 6602
TIME...MOT...LOC 1916Z 240DEG 0KT 1817 6612

JJA
Special weather statement, Oct 2, 2:27 PM CDT, 1 hour 50 minutes before
Comunicado Especial de las Condiciones del Tiempo
Servicio Nacional de Meteorologia San Juan PR
318 PM AST martes 2 de octubre de 2018

PRZ004-006-022015-
Central Interior-Este Interior-
318 PM AST martes 2 de octubre de 2018

...UNA TRONADA FUERTE AFECTARA A LOS SIGUIENTES MUNICIPIOS...
COMERIO...AGUAS BUENAS...CAGUAS...CAYEY...BARRANQUITAS...CIDRA
Y AIBONITO...

A las 3:16 PM AST, una tronada fuerte localizada desde Cidra hasta
Aibonito. Esta tormenta esta casi estacionaria. Esta tronadas puede
producir vientos en exceso de 30 mph. Esta tronada tambien esta
produciendo lluvias torrenciales, rayos frecuentes y pudiera
producir granizo pequeno.

Lluvia torrencial tambien esta ocurriendo con esta tronada, y
pudiera causar inundaciones localizadas. No conduzca su vehiculo a
traves de carreteras inundadas.

Rayos frecuentes de nube a tierra estan ocurriendo con esta tronada.
Los rayos pueden caer a 10 millas de una tronada. Busque refugio
dentro de un edificio o vehiculo.

JJA/ICP

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 1, 8:09 PM CDTAreal Flood AdvisoryJSJ3 hr
Oct 2, 2:18 PM CDTSpecial Weather StatementJSJ57 min
Oct 2, 2:44 PM CDTAreal Flood AdvisoryJSJ2 hr
Oct 2, 2:48 PM CDTAreal Flood AdvisoryJSJ117 min
Oct 2, 3:19 PM CDTAreal Flood AdvisoryJSJ116 min
Oct 2, 4:06 PM CDTRip Current StatementJSJ5 days
Oct 2, 4:06 PM CDTRip Current StatementJSJ5 days
Oct 2, 4:22 PM CDTAreal Flood AdvisoryJSJ113 min
Oct 2, 4:47 PM CDTAreal Flood AdvisoryJSJ118 min

Nearby

Small Craft Advisories in Puerto Rico, 2018Every small craft advisory in 2018

Sources

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