Alert archive / Puerto Rico / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 2, NWS JSJ

May 12, 2012

NWS JSJ issued this severe thunderstorm warning at May 12, 2012, 3:20 PM CDT. It was in force for 25 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: May 12, 2012, 3:20 PM CDT (20:20 UTC)
Expired: May 12, 2012, 3:45 PM CDT
In force: 25 min
Issued by: NWS JSJ
Area: Storm-based polygon

The radar

The San Juan radar (TJUA), 102 km from the middle of the area, began a volume at 20:20 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.

238 
WUCA52 TJSJ 122020
SVRSJU
PRC011-083-097-099-131-122045-
/O.NEW.TJSJ.SV.W.0002.120512T2020Z-120512T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
420 PM AST SAT MAY 12 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ANASCO MUNICIPALITY IN PUERTO RICO...
  LAS MARIAS MUNICIPALITY IN PUERTO RICO...
  MAYAGUEZ MUNICIPALITY IN PUERTO RICO...
  MOCA MUNICIPALITY IN PUERTO RICO...
  SAN SEBASTIAN MUNICIPALITY IN PUERTO RICO...

* UNTIL 445 PM AST

* AT 408 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...       
  FREQUENT LIGHTNING...STRONG GUSTY WINDS BETWEEN 45 AND 60 MPH.     
  THIS STORM WAS LOCATED ABOUT 6 MILES SOUTHWEST OF SAN SEBASTIAN... 
  AND MOVING WEST AT 5 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 1825 6691 1819 6704 1821 6715 1830 6713
      1838 6704
TIME...MOT...LOC 2014Z 068DEG 5KT 1826 6706

$$

ER/OMS/BCS

1 follow-up statement

601 
WWCA52 TJSJ 122046
SVSSJU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
446 PM AST SAT MAY 12 2012

PRC011-083-097-099-131-122054-
/O.EXP.TJSJ.SV.W.0002.000000T0000Z-120512T2045Z/
ANASCO PR-MOCA PR-SAN SEBASTIAN PR-LAS MARIAS PR-MAYAGUEZ PR-
446 PM AST SAT MAY 12 2012

...THE SEVERE THUNDERSTORM WARNING FOR MAYAGUEZ...LAS MARIAS...SAN
SEBASTIAN...MOCA AND ANASCO MUNICIPALITIES WILL EXPIRE AT 445 PM
AST...

THE SEVERE THUNDERSTORM WARNING WAS ALLOWED TO EXPIRE AT 445 PM AST. 
HOWEVER...A SPECIAL WEATHER STATEMENT CONTINUES IN EFFECT FOR THE 
SAME MUNICIPALITIES UNTIL 5 PM AST. THE STORM HAS BEEN SHOWING SIGNS 
OF WEAKENING.

LAT...LON 1825 6691 1819 6704 1821 6715 1830 6713
      1838 6704
TIME...MOT...LOC 2044Z 068DEG 5KT 1824 6710

$$

ER

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 12, 2:56 AM CDT	Areal Flood Advisory	JSJ		64 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.