Alert archive / Puerto Rico / Gale Warnings in 2018

Gale Warning 1, NWS JSJ

January 27, 2018

NWS JSJ issued this gale warning at Jan 27, 2018, 3:20 AM CST. It took effect at Jan 27, 2018, 12:00 PM CST. It was in force for 28 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 27, 2018, 3:20 AM CST (09:20 UTC)
In effect from
Jan 27, 2018, 12:00 PM CST
Expired
Jan 28, 2018, 4:00 PM CST
In force
28 hr
Issued by
NWS JSJ

The text

As transmitted.

943 
WHCA72 TJSJ 270920
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
520 AM AST Sat Jan 27 2018

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

.A northerly swell and wind driven seas will result in hazardous
seas across the regional waters through early next week.

AMZ710-271730-
/O.EXT.TJSJ.SC.Y.0009.000000T0000Z-180127T1800Z/
/O.NEW.TJSJ.GL.W.0001.180127T1800Z-180128T1200Z/
/O.NEW.TJSJ.SC.Y.0010.180128T1200Z-180130T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
520 AM AST Sat Jan 27 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM AST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 AM AST SUNDAY...

* WINDS...Northeast winds at around 30 knots with frequent gusts
  greater than 34 knots are expected across the northern most 
  offshore waters.
 
* WAVES/SEAS...Seas 10 to 14 feet with occasional seas up to 17 
  feet . 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

AMZ712-715-722-725-732-741-742-271730-
/O.EXT.TJSJ.SC.Y.0009.000000T0000Z-180130T1800Z/
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-
520 AM AST Sat Jan 27 2018

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

* WINDS...Northeast winds around 30 knots with higher gusts. 

* WAVES/SEAS...Seas 10 to 12 feet with occasional seas up to 14 
  feet

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ735-271730-
/O.EXT.TJSJ.SC.Y.0009.000000T0000Z-180130T0600Z/
Coastal Waters of Southern Puerto Rico out 10 NM-
520 AM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts. 

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13
  feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ745-271730-
/O.EXT.TJSJ.SC.Y.0009.180127T0920Z-180129T0600Z/
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
520 AM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts. 

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$
6 follow-up statements
780 
WHCA72 TJSJ 271324
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
924 AM AST Sat Jan 27 2018

...Strong winds and hazardous seas expected across regional 
waters...

.A northerly swell and wind driven seas will result in hazardous
seas across the regional waters through early next week.

AMZ710-272130-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180127T1800Z/
/O.CON.TJSJ.GL.W.0001.180127T1800Z-180128T1200Z/
/O.CON.TJSJ.SC.Y.0010.180128T1200Z-180130T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
924 AM AST Sat Jan 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM AST THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 AM AST SUNDAY...

* WINDS...Northeast winds 20 to 30 knots with frequent gusts
  greater than 34 knots across the northern most offshore waters. 

* WAVES/SEAS...Seas 10 to 14 feet with occasional seas up to 17 
  feet . 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

AMZ712-715-722-725-732-741-742-272130-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180130T1800Z/
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-
924 AM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 30 knots with higher gusts.

* WAVES/SEAS...Seas 10 to 12 feet with occasional seas up to 14 
  feet 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ735-272130-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180130T0600Z/
Coastal Waters of Southern Puerto Rico out 10 NM-
924 AM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ745-272130-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180129T0600Z/
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
924 AM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$
307 
WHCA72 TJSJ 271905
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
305 PM AST Sat Jan 27 2018

...Strong winds and hazardous seas expected across regional
waters...

.A northerly swell and wind driven seas will result in hazardous
seas across the regional waters through early next week.

AMZ710-280800-
/O.CON.TJSJ.GL.W.0001.000000T0000Z-180128T1200Z/
/O.CON.TJSJ.SC.Y.0010.180128T1200Z-180130T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
305 PM AST Sat Jan 27 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 8 AM AST SUNDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM SUNDAY TO
2 PM AST TUESDAY...

* WINDS...Northeast winds 20 to 30 knots with frequent gusts 
  greater than 34 knots across the northern most offshore 
  waters. 

* WAVES/SEAS...Seas 10 to 14 feet with occasional seas up to 17 
  feet . 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

AMZ712-715-722-725-732-741-742-280800-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180130T1800Z/
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-
305 PM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 30 knots with higher gusts.

* WAVES/SEAS...Seas 10 to 12 feet with occasional seas up to 14 
  feet 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ735-280800-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180130T0600Z/
Coastal Waters of Southern Puerto Rico out 10 NM-
305 PM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ745-280800-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180129T0600Z/
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
305 PM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$
729 
WHCA72 TJSJ 280057
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
857 PM AST Sat Jan 27 2018

...Strong winds and hazardous seas expected across regional
waters...

.A northerly swell and wind driven seas will result in hazardous
seas across the regional waters through Monday.

AMZ710-280900-
/O.CON.TJSJ.GL.W.0001.000000T0000Z-180128T1200Z/
/O.CON.TJSJ.SC.Y.0010.180128T1200Z-180130T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
857 PM AST Sat Jan 27 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 8 AM AST SUNDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM SUNDAY TO
2 PM AST TUESDAY...

* WINDS...Northeast winds 20 to 30 knots with frequent gusts 
  greater than 34 knots across the northern most offshore 
  waters. 

* WAVES/SEAS...Seas 10 to 14 feet with occasional seas up to 17 
  feet . 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

AMZ712-715-722-725-732-741-742-280900-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180130T1800Z/
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-
857 PM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 30 knots with higher gusts.

* WAVES/SEAS...Seas 10 to 12 feet with occasional seas up to 14 
  feet 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ735-280900-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180130T0600Z/
Coastal Waters of Southern Puerto Rico out 10 NM-
857 PM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ745-280900-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180129T0600Z/
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
857 PM AST Sat Jan 27 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$
497 
WHCA72 TJSJ 280910
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
510 AM AST Sun Jan 28 2018

...Strong winds and hazardous seas are expected across regional
waters...

.A northerly swell and wind driven seas will result in hazardous
seas across the regional waters.

AMZ710-281715-
/O.EXT.TJSJ.GL.W.0001.000000T0000Z-180128T1600Z/
/O.EXT.TJSJ.SC.Y.0010.180128T1600Z-180131T0600Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
510 AM AST Sun Jan 28 2018

...GALE WARNING IN EFFECT UNTIL NOON AST TODAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 2 AM AST 
WEDNESDAY...

* WINDS...Northeast winds 20 to 30 knots with frequent gusts
  greater than 34 knots across the northern most offshore waters
  early this morning.
 
* WAVES/SEAS...Seas 10 to 14 feet with occasional seas up to 18 
  feet . 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

AMZ712-715-722-725-732-741-742-281715-
/O.EXT.TJSJ.SC.Y.0009.000000T0000Z-180131T0600Z/
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-
510 AM AST Sun Jan 28 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

* WINDS...Northeast winds 20 to 30 knots with higher gusts.

* WAVES/SEAS...Seas 12 to 14 feet with occasional seas up to 18
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ735-281715-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180130T0600Z/
Coastal Waters of Southern Puerto Rico out 10 NM-
510 AM AST Sun Jan 28 2018

...SMALL CRAFT ADVISORY REMAINS THROUGH LATE MONDAY NIGHT...

* WINDS...Northeast winds around 25 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ745-281715-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180129T0600Z/
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
510 AM AST Sun Jan 28 2018

...SMALL CRAFT ADVISORY REMAINS THROUGH LATE Tonight...

* WINDS...Northeast winds around 20 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 13 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$
901 
WHCA72 TJSJ 281424
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
1024 AM AST Sun Jan 28 2018

...Strong winds and hazardous seas are expected across regional
waters...

.A northerly swell and wind driven seas will result in hazardous
seas across the regional waters. Winds will diminish tonight 
through Tuesday.

AMZ710-282230-
/O.EXT.TJSJ.GL.W.0001.000000T0000Z-180128T2200Z/
/O.EXT.TJSJ.SC.Y.0010.180128T2200Z-180201T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1024 AM AST Sun Jan 28 2018

...GALE WARNING NOW IN EFFECT UNTIL 6 PM AST THIS EVENING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO
2 PM AST THURSDAY...

* WINDS...Northeast winds 20 to 30 knots with frequent gusts
  greater than 34 knots across the northern most offshore waters
  today. 

* WAVES/SEAS...Seas 10 to 14 feet with occasional seas up to 18 
  feet . 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

AMZ712-722-741-282230-
/O.EXT.TJSJ.SC.Y.0009.000000T0000Z-180201T1800Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Anegada Passage Southward to 17N-Mona Passage Southward to 17N-
1024 AM AST Sun Jan 28 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 12 to 14 feet with occasional seas up to 18 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ715-725-732-282230-
/O.EXT.TJSJ.SC.Y.0009.000000T0000Z-180131T1800Z/
Coastal Waters of Northern USVI and Culebra out 10 NM-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico
out 10 NM-Caribbean Waters of Puerto Rico from 10 NM to 17N-
1024 AM AST Sun Jan 28 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 12 to 14 feet with occasional seas up to 18 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ735-282230-
/O.EXT.TJSJ.SC.Y.0009.000000T0000Z-180130T1000Z/
Coastal Waters of Southern Puerto Rico out 10 NM-
1024 AM AST Sun Jan 28 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM AST TUESDAY...

* WINDS...Northeast winds 15 to 20 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 11 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ745-282230-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180129T0600Z/
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
1024 AM AST Sun Jan 28 2018

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

* WINDS...Northeast winds 10 to 15 knots with higher gusts.

* 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 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.

&&

$$

AMZ742-282230-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180131T0600Z/
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
1024 AM AST Sun Jan 28 2018

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

* WINDS...Northeast winds 15 to 20 knots with higher gusts.

* WAVES/SEAS...Seas 12 to 14 feet with occasional seas up to 18 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$
370 
WHCA72 TJSJ 281931
MWWSJU

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Juan PR
331 PM AST Sun Jan 28 2018

...Strong winds and hazardous seas are expected across regional
waters...

.A northerly swell and wind driven seas will result in hazardous
seas across the regional waters. Winds will diminish tonight
through Tuesday.

AMZ710-290800-
/O.CON.TJSJ.GL.W.0001.000000T0000Z-180128T2200Z/
/O.CON.TJSJ.SC.Y.0010.180128T2200Z-180201T1800Z/
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
331 PM AST Sun Jan 28 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 6 PM AST THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM AST
THURSDAY...

* WINDS...Northeast winds 20 to 30 knots with frequent gusts 
  greater than 34 knots across the northern most offshore waters 
  today. 

* WAVES/SEAS...Seas 10 to 14 feet with occasional seas up to 18 
  feet . 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

AMZ712-722-741-290800-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180201T1800Z/
Coastal Waters of Northern Puerto Rico out 10 NM-
Anegada Passage Southward to 17N-Mona Passage Southward to 17N-
331 PM AST Sun Jan 28 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 12 to 14 feet with occasional seas up to 18 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ715-725-732-290800-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180131T1800Z/
Coastal Waters of Northern USVI and Culebra out 10 NM-
Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico
out 10 NM-Caribbean Waters of Puerto Rico from 10 NM to 17N-
331 PM AST Sun Jan 28 2018

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

* WINDS...Northeast winds 20 to 25 knots with higher gusts.

* WAVES/SEAS...Seas 12 to 14 feet with occasional seas up to 18 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ735-290800-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180130T1000Z/
Coastal Waters of Southern Puerto Rico out 10 NM-
331 PM AST Sun Jan 28 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM AST
TUESDAY...

* WINDS...Northeast winds 15 to 20 knots with higher gusts.

* WAVES/SEAS...Seas 8 to 10 feet with occasional seas up to 11 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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.

&&

$$

AMZ745-290600-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180129T0600Z/
Coastal Waters OF Southwestern Puerto Rico out 10 NM-
331 PM AST Sun Jan 28 2018

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

* WINDS...Northeast winds 10 to 15 knots with higher gusts.

* 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 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.

&&

$$

AMZ742-290800-
/O.CON.TJSJ.SC.Y.0009.000000T0000Z-180131T0600Z/
Coastal Waters OF Northwestern Puerto Rico out 10 NM-
331 PM AST Sun Jan 28 2018

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

* WINDS...Northeast winds 15 to 20 knots with higher gusts.

* WAVES/SEAS...Seas 12 to 14 feet with occasional seas up to 18 
  feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and 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 gale warning 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 gale warning went out at Jan 26, 6:36 PM CST, 8 hours 44 minutes earlier.

Area forecast discussion, Jan 26, 6:36 PM CST, 8 hours 44 minutes before
Area Forecast Discussion
National Weather Service San Juan PR
836 PM AST Fri Jan 26 2018

.UPDATE...SJU doppler radar shows scattered showers over the
north Atlantic and portions of northern, and southern Puerto Rico
these showers will continue through the overnight hours. Strong
east to northeast winds of 20 to 25 mph with higher gusts will
bring low level moisture periodically across the region through
Monday. A strong northerly swell will cause marine conditions to
deteriorate tonight through the weekend across the Atlantic and
local water ways.

&&

.AVIATION...VFR conditions should prevail through the reminder of
the 27/00Z TAF period. Brief -SHRA are possible through 27/12Z due
to strong and fast trade winds bring low level moisture across
the region. At the sfc east to northeast winds of 20 to 25 kts
with higher gusts possible. East to northeast winds of 15 to 20
kts extends from the sfc to 15kft but the winds turn westerly at
25kft to 40kft with winds ranging from 15 to 40 kts. Some SHRA may
cause terminals to briefly fall to MVFR but MVFR conditions
shouldn't last long.

&&

.MARINE...MARINE...Small craft advisories are in effect across all coastal
waters except across the nearshore waters of southwestern Puerto
Rico. Building seas up to 10 feet and winds up to 25 to 30 knots
are expected. Fresh to strong trades in combination with a large
northerly swell will generate dangerous seas through early next
week. As a result large breaking waves will produce life
threatening rip currents, coastal erosion and coastal flooding
into the upcoming work-week.

&&

.PREV DISCUSSION... /issued 412 PM AST Fri Jan 26 2018/

SYNOPSIS...Shearline will continue to dig southeastward towards
the local area tonight into Saturday. Strong surface high pressure
will build behind the shearline, producing breeze to windy
conditions across the local area through at least Monday.

SHORT TERM...Variably cloudy skies prevailed across Puerto Rico
and the U.S. Virgin Islands this afternoon. Areas of cloudiness
with showers embedded in the trade winds affected the local
islands from time to time. Rainfall accumulation were less than an
inch. This weather pattern will continue through tonight. A
shearline is expected to move across Puerto Rico Saturday and
Sunday, bringing with it an increase in cloudiness, with scattered
to numerous showers both days. Breeze to windy conditions are
expected as a strong high pressure system builds behind the
shearline.

LONG TERM...(from previous discussion) Monday through Saturday

A ridge pattern aloft will hold much of the upcoming week as well
as the following week. At lower levels, a high pressure across
the central Atlantic will promote moderate to strong east
northeast winds Monday through early Tuesday. However by mid week,
the surface high is expected to erode as a frontal boundary moves
over the western Atlantic and closer to the local area. A
seasonal weather pattern is expected to prevail through the
forecast period with trade wind showers at times particularly on
Monday and early Friday. The driest day at this time could be
Wednesday.

AVIATION...SHRA/-SHRA are expected to continue at TJSJ/TIST/TJPS/TISX/TJBQ
and TNCM/TKPK with SCT-BKN lyrs btwn FL020-FL090 ovr local flying
area and en route between islands. SHRA are fcst to develop over
TJMZ btwn 26/18z-23z. The winds will continue from the E-NE at 15
to 25 knots with higher gusts in/near SHRA. Breezy to windy
conditions are forecast to persist through the weekend.

MARINE...Small craft advisories are in effect across all coastal
waters except across the nearshore waters of southwestern Puerto
Rico. Building seas of 5 to 7 feet and winds up to 25 to 30 knots
are expected. Fresh to strong trades in combination with a large
northerly swell will generate dangerous confuse seas through early
next week. As a result large breaking waves will produce life
threatening rip currents, coastal erosion and coastal flooding
into the upcoming work-week.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  73  79  76  82 /  60  50  40  40
STT  73  84  74  84 /  60  50  40  40

&&

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

     Wind Advisory until 8 AM AST Sunday for Central Interior-Culebra-
     Eastern Interior-Mayaguez and Vicinity-North Central-
     Northeast-Northwest-Ponce and Vicinity-San Juan and
     Vicinity-Southeast-Southwest-Vieques-Western Interior.

     High Rip Current Risk from 6 AM AST Saturday through late Sunday
     night for Mayaguez and Vicinity-Vieques.

VI...High Rip Current Risk through late Sunday night for St Croix-
     St.Thomas...St. John...and Adjacent Islands.

     Wind Advisory until 8 AM AST Sunday for St Croix-St.Thomas...St.
     John...and Adjacent Islands.

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

     Wind Advisory until 8 AM AST Sunday for Coastal Waters OF
     Southwestern Puerto Rico out 10 NM-Coastal Waters of
     Northern USVI and Culebra out 10 NM-Coastal Waters of
     Southern Puerto Rico out 10 NM-Coastal Waters of Southern
     USVI Vieques and Eastern Puerto Rico out 10 NM.

     Small Craft Advisory until 8 PM AST Monday for Anegada Passage
     Southward to 17N-Caribbean Waters of Puerto Rico from 10 NM
     to 17N-Coastal Waters OF Northwestern Puerto Rico out 10 NM-
     Coastal Waters of Northern USVI and Culebra out 10 NM-
     Coastal Waters of Southern Puerto Rico out 10 NM-Coastal
     Waters of Southern USVI Vieques and Eastern Puerto Rico out
     10 NM.

     Small Craft Advisory until 8 PM AST Monday for 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.

&&

SHORT TERM...99
LONG TERM....99
Hazardous weather outlook, Jan 26, 3:39 AM CST, 23 hours 41 minutes before
Perspectivas sobre Condiciones Peligrosas del Tiempo
Servicio Nacional de Meteorologia San Juan PR
507 AM AST viernes 26 de enero de 2018

AMZ710>745-PRZ001>013-270915-
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-
507 AM AST viernes 26 de enero 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

.Inundaciones...Lluvias moderadas a fuertes localmente podrian
resultar en acumulacion de agua en carreteras y areas de drenaje
pobre.

.Viento...Se esperan vientos sostenidos en exceso de 20 mph con
rafagas mas altas en ocasiones a traves de las aguas y pasajes
locales.

.Olas...Se espera oleaje picado y en deterioro de hasta 7 pies a
traves de gran parte de las aguas y pasajes locales hoy.

.Corrientes Marinas...Existe un riesgo alto de corrientes
marinas para las playas del noroeste de Puerto Rico y un riesgo
moderado de corrientes marinas para la mayoria del resto de las
playas de Puerto Rico, Vieques y Culebra.

.Dias dos a siete...sabado a jueves

Vientos y oleaje en aumento y deterioro se tornaran peligrosos
durante el fin de semana debido a la llegada de una marejada de
largo periodo del norte y vientos alisios fuertes del noreste.
Advertencias para los operadores de embarcaciones pequenas estaran
en efecto para gran parte de las aguas y pasajes locales. Se esperan
condiciones de resacas peligrosas y riesgo moderado a alto de
corrientes marinas para todas las playas durante el fin de semana.

.Comunicado sobre informacion reportada por observadores...

No se anticipa activacion amplia de observadores, sin embargo, se le
exhorta a los observadores que reporten corrientes marinas al
Servicio Nacional de Meteorologia en San Juan.

AMZ715-725-VIZ001-002-270915-
San Tomas, San John e Islas Adyacentes-Santa Cruz-
Aguas cercanas del Atlantico y aguas costeras adyacentes del Caribe-
507 AM AST viernes 26 de enero de 2018

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

.Viento...Se esperan vientos sostenidos en exceso de 20 mph con
rafagas mas altas en ocasiones a traves de las aguas y pasajes
locales.

.Olas...Se espera oleaje picado y en deterioro de hasta 7 pies a
traves de gran parte de las aguas y pasajes locales hoy.

.Corrientes Marinas...Existe un riesgo moderado de corrientes
marinas a traves de la mayoria de las playas locales de Santa Cruz
y algunas de las playas del norte de San Thomas.

.Dias Dos a Siete...sabado a jueves

Vientos y oleaje en aumento y deterioro se tornaran peligrosos
durante el fin de semana debido a la llegada de una marejada de
largo periodo del norte y vientos alisios fuertes del noreste.
Advertencias para los operadores de embarcaciones pequenas estaran
en efecto para gran parte de las aguas y pasajes locales. Se esperan
condiciones de resacas peligrosas y riesgo moderado a alto de
corrientes marinas para todas las playas durante el fin de semana.

.Comunicado sobre informacion reportada por observadores...

No se anticipa activacion amplia de observadores, sin embargo, se le
exhorta a los observadores que reporten corrientes marinas al
Servicio Nacional de Meteorologia en San Juan.

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 26, 7:22 PM CSTHigh Surf AdvisoryJSJ7 days
Jan 27, 3:20 AM CSTSmall Craft AdvisoryJSJ8 days
Jan 27, 3:35 AM CSTCoastal Flood AdvisoryJSJ50 hr

Nearby

Gale Warnings in Puerto Rico, 2018Every gale warning 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.