Alert archive / Puerto Rico / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 7, NWS JSJ

August 16, 2011

NWS JSJ issued this severe thunderstorm warning at Aug 16, 2011, 11:46 AM CDT. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 16, 2011, 11:46 AM CDT (16:46 UTC)
Expired
Aug 16, 2011, 12:32 PM CDT
In force
46 min
Issued by
NWS JSJ
Area
Storm-based polygon

The radar

The San Juan radar (TJUA), 112 km from the middle of the area, began a volume at 16:49 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.

What was reported inside it

TimeReportWhereRemark
Aug 16, 11:58 AM CDTTSTM WND DMGMayaguez, PRTREES DOWN IN SECTOR LA LOMA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The text

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

590 
WUCA52 TJSJ 161646
SVRSJU
PRC003-011-083-093-097-117-125-161745-
/O.NEW.TJSJ.SV.W.0007.110816T1646Z-110816T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1246 PM AST TUE AUG 16 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  AGUADA MUNICIPALITY IN PUERTO RICO...
  ANASCO MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF ANASCO...
  LAS MARIAS MUNICIPALITY IN PUERTO RICO...
  MARICAO MUNICIPALITY IN PUERTO RICO...
  MAYAGUEZ MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF MAYAGUEZ...
  RINCON MUNICIPALITY IN PUERTO RICO...
  SAN GERMAN MUNICIPALITY IN PUERTO RICO...

* UNTIL 145 PM AST

* AT 1239 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES EAST OF MAYAGUEZ...OR 7
  MILES NORTHEAST OF HORMIGUEROS...AND MOVING NORTHWEST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ANASCO BY 1255 PM AST...
  LA PLAYA BY 100 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 1833 6713 1832 6713 1833 6712 1830 6705
      1825 6696 1818 6696 1813 6699 1819 6717
      1828 6720 1831 6725 1837 6728 1838 6725
TIME...MOT...LOC 1646Z 118DEG 34KT 1823 6709

$$

ROSA
3 follow-up statements
616 
WWCA52 TJSJ 161706
SVSSJU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
106 PM AST TUE AUG 16 2011

PRC003-011-093-117-161716-
/O.CAN.TJSJ.SV.W.0007.000000T0000Z-110816T1745Z/
ANASCO PR-MARICAO PR-RINCON PR-AGUADA PR-
106 PM AST TUE AUG 16 2011

...THE SEVERE THUNDERSTORM WARNING FOR AGUADA...RINCON...MARICAO AND
ANASCO MUNICIPALITIES IS CANCELED...

LAT...LON 1826 6716 1824 6713 1825 6707 1823 6705
      1819 6706 1816 6706 1819 6717 1821 6717
      1823 6718 1825 6718 1827 6720
TIME...MOT...LOC 1706Z 100DEG 13KT 1819 6711

$$

PRC083-097-125-161745-
/O.CON.TJSJ.SV.W.0007.000000T0000Z-110816T1745Z/
SAN GERMAN PR-LAS MARIAS PR-MAYAGUEZ PR-
106 PM AST TUE AUG 16 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM AST
FOR MAYAGUEZ...LAS MARIAS AND SAN GERMAN MUNICIPALITIES...

AT 1258 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR MAYAGUEZ...OR NEAR
HORMIGUEROS...MOVING WEST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MAYAGUEZ BY 115 PM AST...

NO CALL TO ACTION [SHOW CON.EQ.CON]

LAT...LON 1826 6716 1824 6713 1825 6707 1823 6705
      1819 6706 1816 6706 1819 6717 1821 6717
      1823 6718 1825 6718 1827 6720
TIME...MOT...LOC 1706Z 100DEG 13KT 1819 6711

$$

ROSA
362 
WWCA52 TJSJ 161712
SVSSPN

COMUNICADO SOBRE CONDICIONES SEVERAS 
SERVICIO NACIONAL DE METEOROLOGIA SAN JUAN PR
106 PM AST MARTES 16 DE AGOSTO DE 2011

PRC003-011-093-117-161716-
ANASCO PR-MARICAO PR-RINCON PR-AGUADA PR-
106 PM AST MARTES 16 DE AGOSTO DE 2011

...EL AVISO DE TRONADA SEVERA PARA LOS MUNICIPIOS DE 
AGUADA...RINCON...MARICAO Y ANASCO HA SIDO CANCELADO...

$$

PRC083-097-125-161745-
/O.CON.TJSJ.SV.W.0007.000000T0000Z-110816T1745Z/
SAN GERMAN PR-LAS MARIAS PR-MAYAGUEZ PR-
106 PM AST MARTES 16 DE AGOSTO DE 2011

...EL AVISO PERMANCE EN EFECTO HASTA LAS 1:45 PM AST PARA LOS 
MUNICIPIOS DE MAYAGUEZ...LAS MARIAS Y SAN GERMAN...

A LAS 12:58 PM AST...EL RADAR DOPPLER CONTINUA INDICANDO UNA TRONADA 
SEVERA CAPAZ DE PRODUCIR VIENTOS DESTRUCTIVOS EN EXCESO DE 60 MPH. 
ESTA TRONADA ESTABA LOCALIZADA CERCA DE MAYAGUEZ...O CERCA DE 
HORMIGUEROS...MOVIENDOSE HACIA EL OESTE A 15 MPH.

$$

ROSA
552 
WWCA52 TJSJ 161732
SVSSJU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
132 PM AST TUE AUG 16 2011

PRC083-097-125-161741-
/O.CAN.TJSJ.SV.W.0007.000000T0000Z-110816T1745Z/
SAN GERMAN PR-LAS MARIAS PR-MAYAGUEZ PR-
132 PM AST TUE AUG 16 2011

...THE SEVERE THUNDERSTORM WARNING FOR MAYAGUEZ...LAS MARIAS AND SAN
GERMAN MUNICIPALITIES IS CANCELED...

THE THUNDERSTORM HAS MOVED OUT INTO THE WATERS.

LAT...LON 1826 6716 1824 6713 1825 6707 1823 6705
      1819 6706 1816 6706 1819 6717 1821 6717
      1823 6718 1825 6718 1827 6720
TIME...MOT...LOC 1731Z 100DEG 13KT 1821 6720

$$

ROSA

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 15, 9:10 PM CDTSmall Craft AdvisoryJSJ47 hr
Aug 16, 3:27 AM CDTSmall Craft AdvisoryJSJ23 hr
Aug 16, 10:42 AM CDTSpecial Marine WarningJSJ33 min
Aug 16, 11:26 AM CDTSpecial Marine WarningJSJ2 hr
Aug 16, 11:52 AM CDTSpecial Marine WarningJSJ113 min
Aug 16, 12:00 PM CDTAreal Flood AdvisoryJSJ2 hr
Aug 16, 12:30 PM CDTSpecial Marine WarningJSJ103 min
Aug 16, 1:02 PM CDTSevere Thunderstorm WarningJSJ58 min
Aug 16, 1:23 PM CDTSevere Thunderstorm WarningJSJ22 min
Aug 16, 1:55 PM CDTSpecial Marine WarningJSJ61 min
Aug 16, 2:00 PM CDTSpecial Marine WarningJSJ2 hr
Aug 16, 2:47 PM CDTSpecial Marine WarningJSJ32 min
Aug 16, 2:54 PM CDTSpecial Marine WarningJSJ111 min

Nearby

Severe Thunderstorm Warnings in Puerto Rico, 2011Every severe thunderstorm warning in 2011

Sources

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