Alert archive / Puerto Rico / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 4, NWS JSJ

August 7, 2011

NWS JSJ issued this severe thunderstorm warning at Aug 7, 2011, 12:38 PM CDT. It was in force for 22 min. 2 reports 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 7, 2011, 12:38 PM CDT (17:38 UTC)
Expired: Aug 7, 2011, 1:00 PM CDT
In force: 22 min
Issued by: NWS JSJ
Area: Storm-based polygon

The radar

The San Juan radar (TJUA), 115 km from the middle of the area, began a volume at 17:38 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

Time	Report	Where	Remark
Aug 7, 12:42 PM CDT	TSTM WND DMG	Moca, PR	MAYOR OF MOCA REPORTED NUMEROUS TREES DOWN IN SEVERAL AREAS. THIS REPORT WILL BE UPDATED AS MORE INFORMATION BECOMES AVAILABLE.
Aug 7, 12:42 PM CDT	TORNADO	Moca, PR	A TORNADO TOUCHED DOWN NEAR EL SECTOR EL CRUZ. EXTENSIVE DAMAGE WAS REPORTED ACROSS THE COUNTY WITH NUMEROUS TREES AND POWER LINES DOWN ALONG ROUTE 110...111...125 IN THE QUEBRADA SECTOR...URB. LOS CIPRESES AND SECTOR CUBA DOWNTOWN. DAMAGE TO VEHICLES AND BROK

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.

371 
WUCA52 TJSJ 071738
SVRSJU
PRC003-005-071-099-131-071845-
/O.NEW.TJSJ.SV.W.0004.110807T1738Z-110807T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
138 PM AST SUN AUG 7 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  AGUADA MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF AGUADA...
  AGUADILLA MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF AGUADILLA...
  ISABELA MUNICIPALITY IN PUERTO RICO...
  MOCA MUNICIPALITY IN PUERTO RICO...
  SAN SEBASTIAN MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF SAN SEBASTIAN...

* UNTIL 245 PM AST

* AT 133 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 NEAR MOCA...OR 6 MILES EAST OF
  AGUADA...AND MOVING NORTHWEST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO   
ACEITUNAS AND CABAN.

LAT...LON 1838 6724 1842 6723 1850 6721 1857 6713
      1834 6691 1827 6692
TIME...MOT...LOC 1738Z 153DEG 19KT 1839 6711

$$

ROSA

1 follow-up statement

544 
WWCA52 TJSJ 071800
SVSSJU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
200 PM AST SUN AUG 7 2011

PRC003-005-071-099-131-071809-
/O.CAN.TJSJ.SV.W.0004.000000T0000Z-110807T1845Z/
ISABELA PR-MOCA PR-SAN SEBASTIAN PR-AGUADILLA PR-AGUADA PR-
200 PM AST SUN AUG 7 2011

...THE SEVERE THUNDERSTORM WARNING FOR AGUADA...AGUADILLA...SAN
SEBASTIAN...MOCA AND ISABELA MUNICIPALITIES IS CANCELED...

SATELLITE AND RADAR DATA SHOWS THAT THE THUNDERSTORM THAT PROMPTED 
THE SEVERE THUNDERSTORM WARNING HAS WEAKENED BELOW SEVERE LIMITS. 
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. 

REPORT ANY SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AND HAVE 
THEM RELAY TO THE NATIONAL WEATHER SERVICE IN SAN JUAN.

LAT...LON 1838 6724 1842 6723 1850 6721 1857 6713
      1834 6691 1827 6692
TIME...MOT...LOC 1759Z 153DEG 19KT 1849 6716

$$

ROSA

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Aug 7, 12:29 PM CDT	Areal Flood Advisory	JSJ	3 hr
Aug 7, 12:43 PM CDT	Special Marine Warning	JSJ	92 min
Aug 7, 4:33 PM CDT	Areal Flood Warning	JSJ	4 hr

Nearby

Severe Thunderstorm Warnings in Puerto Rico, 2011 Every 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.