Alert archive / Puerto Rico / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 8, NWS JSJ

August 16, 2011

NWS JSJ issued this severe thunderstorm warning at Aug 16, 2011, 1:02 PM CDT. It was in force for 58 min. 3 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 16, 2011, 1:02 PM CDT (18:02 UTC)
Expired: Aug 16, 2011, 2:00 PM CDT
In force: 58 min
Issued by: NWS JSJ
Area: Storm-based polygon

The radar

The San Juan radar (TJUA), 16 km from the middle of the area, began a volume at 18:03 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 16, 1:12 PM CDT	TSTM WND DMG	Yabucoa, PR	TALL OLD TREE AND NUMEROUS TREE BRANCHES DOWN ON ROAD 901 AND ON ROAD 182.
Aug 16, 1:12 PM CDT	TSTM WND GST 41	3 E Yabucoa, PR	36-KT AT YABP4.
Aug 16, 1:17 PM CDT	TSTM WND DMG	Yabucoa, PR	POWER POLES DOWN ALONG PR-3.

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.

970 
WUCA52 TJSJ 161802
SVRSJU
PRC015-057-095-109-123-133-151-161900-
/O.NEW.TJSJ.SV.W.0008.110816T1802Z-110816T1900Z/

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

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ARROYO MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF ARROYO...
  GUAYAMA MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF GUAYAMA...
  MAUNABO MUNICIPALITY IN PUERTO RICO...
  PATILLAS MUNICIPALITY IN PUERTO RICO...
  SALINAS MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF SALINAS...
  SANTA ISABEL MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF SANTA ISABEL...
  YABUCOA MUNICIPALITY IN PUERTO RICO...
  THIS INCLUDES THE CITY OF YABUCOA...

* UNTIL 300 PM AST

* AT 158 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 26 MILES EAST OF YABUCOA TO JOBOS TO 18 MILES SOUTHWEST OF    
  SANTA ISABEL...MOVING NORTHWEST AT 45 MPH. THIS LINE HAS A HISTORY 
  OF PRODUCING WIND GUSTS TO 50 MPH AT SAINT CROIX.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  EMAJAGUA...MAUNABO...PALMAS...BUENA VISTA...PATILLAS...CORAZON...
  PLAYITA...OLIMPO...COQUI...MARTORELL...JAUCA...COCO AND VAZQUEZ

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 1792 6633 1797 6633 1794 6637 1792 6635
      1791 6639 1798 6645 1804 6642 1802 6633
      1810 6624 1804 6620 1804 6614 1810 6612
      1811 6605 1808 6600 1812 6592 1812 6585
      1807 6579 1796 6592 1796 6608 1790 6623
TIME...MOT...LOC 1800Z 117DEG 40KT 1806 6551 1790 6620
          1779 6661

$$

ROSA

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Aug 15, 9:10 PM CDT	Small Craft Advisory	JSJ	47 hr
Aug 16, 3:27 AM CDT	Small Craft Advisory	JSJ	23 hr
Aug 16, 10:42 AM CDT	Special Marine Warning	JSJ	33 min
Aug 16, 11:26 AM CDT	Special Marine Warning	JSJ	2 hr
Aug 16, 11:46 AM CDT	Severe Thunderstorm Warning	JSJ	46 min
Aug 16, 11:52 AM CDT	Special Marine Warning	JSJ	113 min
Aug 16, 12:00 PM CDT	Areal Flood Advisory	JSJ	2 hr
Aug 16, 12:30 PM CDT	Special Marine Warning	JSJ	103 min
Aug 16, 1:23 PM CDT	Severe Thunderstorm Warning	JSJ	22 min
Aug 16, 1:55 PM CDT	Special Marine Warning	JSJ	61 min
Aug 16, 2:00 PM CDT	Special Marine Warning	JSJ	2 hr
Aug 16, 2:47 PM CDT	Special Marine Warning	JSJ	32 min
Aug 16, 2:54 PM CDT	Special Marine Warning	JSJ	111 min

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.