Alert archive / Puerto Rico / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 1, NWS JSJ

March 23, 2012

NWS JSJ issued this severe thunderstorm warning at Mar 23, 2012, 1:44 PM CDT. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Mar 23, 2012, 1:44 PM CDT (18:44 UTC)
Expired: Mar 23, 2012, 2:13 PM CDT
In force: 29 min
Issued by: NWS JSJ
Area: Storm-based polygon

The radar

The San Juan radar (TJUA), 96 km from the middle of the area, began a volume at 18:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The text

As transmitted, in the capitals the NWS used until 2016.

943 
WUCA52 TJSJ 231844
SVRSJU
PRC055-079-121-231930-
/O.NEW.TJSJ.SV.W.0001.120323T1844Z-120323T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
244 PM AST FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GUANICA MUNICIPALITY IN PUERTO RICO...
  LAJAS MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF LAJAS...
  SABANA GRANDE MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF SABANA GRANDE...

* UNTIL 330 PM AST

* AT 239 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  SABANA GRANDE...AND MOVING SOUTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FUIG BY 250 PM AST...
  LLUVERAS BY 255 PM AST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 1801 6708 1806 6709 1807 6706 1805 6698
      1809 6698 1810 6691 1807 6691 1803 6688
      1800 6688 1798 6694
TIME...MOT...LOC 1844Z 279DEG 10KT 1804 6693

$$

ROSA

2 follow-up statements

374 
WWCA52 TJSJ 231900
SVSSJU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
300 PM AST FRI MAR 23 2012

PRC121-231910-
/O.CAN.TJSJ.SV.W.0001.000000T0000Z-120323T1930Z/
SABANA GRANDE PR-
300 PM AST FRI MAR 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR SABANA GRANDE MUNICIPALITY IS
CANCELED...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA.

LAT...LON 1801 6708 1806 6709 1807 6706 1804 6696
      1803 6696 1803 6693 1803 6692 1803 6689
      1800 6688 1798 6694
TIME...MOT...LOC 1900Z 279DEG 10KT 1803 6688

$$

PRC055-079-231930-
/O.CON.TJSJ.SV.W.0001.000000T0000Z-120323T1930Z/
GUANICA PR-LAJAS PR-
300 PM AST FRI MAR 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM AST
FOR LAJAS AND GUANICA MUNICIPALITIES...

AT 258 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR FUIG...OR NEAR YAUCO...MOVING SOUTHEAST AT 10 MPH.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. 
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A 
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A 
STURDY HOME OR BUILDING...SUCH AS A CLOSET OR SMALL INTERIOR ROOM.

LAT...LON 1801 6708 1806 6709 1807 6706 1804 6696
      1803 6696 1803 6693 1803 6692 1803 6689
      1800 6688 1798 6694
TIME...MOT...LOC 1900Z 279DEG 10KT 1803 6688

$$

ROSA

222 
WWCA52 TJSJ 231913
SVSSJU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
313 PM AST FRI MAR 23 2012

PRC055-079-231923-
/O.CAN.TJSJ.SV.W.0001.000000T0000Z-120323T1930Z/
GUANICA PR-LAJAS PR-
313 PM AST FRI MAR 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR LAJAS AND GUANICA
MUNICIPALITIES IS CANCELED...

THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS AND HAS MOVED OUT 
OF THE WARNED AREA.

LAT...LON 1801 6708 1806 6709 1807 6706 1804 6696
      1803 6696 1803 6693 1803 6692 1803 6689
      1800 6688 1798 6694
TIME...MOT...LOC 1913Z 279DEG 10KT 1803 6685

$$

ROSA

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Mar 22, 11:47 PM CDT	Areal Flood Advisory	JSJ	118 min
Mar 23, 1:48 AM CDT	Areal Flood Advisory	JSJ	3 hr
Mar 23, 3:00 AM CDT	Flash Flood Warning	JSJ	2 hr
Mar 23, 4:53 AM CDT	Areal Flood Advisory	JSJ	4 hr
Mar 23, 7:25 AM CDT	Areal Flood Advisory	JSJ	99 min

Nearby

Severe Thunderstorm Warnings in Puerto Rico, 2012 Every severe thunderstorm warning in 2012

Sources

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