Alert archive / Puerto Rico / Flash Flood Warnings in 2011

Flash Flood Warning 9, NWS JSJ

May 10, 2011

NWS JSJ issued this flash flood warning at May 10, 2011, 3:09 PM CDT. It was in force for 5 hr. 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 10, 2011, 3:09 PM CDT (20:09 UTC)
Expired: May 10, 2011, 8:00 PM CDT
In force: 5 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The text

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

215 
WGCA52 TJSJ 102009
FFWSJU
PRC021-045-051-105-135-137-102300-
/O.NEW.TJSJ.FF.W.0009.110510T2009Z-110510T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
409 PM AST TUE MAY 10 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     BAYAMON
     COMERIO
     NARANJITO
     TOA ALTA
     DORADO
     TOA BAJA

* UNTIL 700 PM AST

* AT 400 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED   
TO INDICATE PERSISTENT MODERATE TO HEAVY RAINFALL OVER RIO DE LA     
PLATA AT COMERIO AND TOA ALTA...WHICH IS LEADING TO RAPID RISES IN   
THE RIO DE LA PLATA RIVER AND ITS TRIBUTARIES. AS A RESULT...EXPECT 
FLASH FLOODING ACROSS THESE AREAS. RAINFALL TOTALS OF 3 TO 4 INCHES 
HAVE ALREADY BEEN MEASURED IN SOME AREAS AND ADDITIONAL RAINFALL 
AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED DURING THE NEXT FEW HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 1823 6624 1827 6622 1831 6623 1834 6626
      1839 6627 1843 6627 1848 6627 1848 6623
      1841 6623 1836 6622 1831 6619 1827 6619
      1820 6622 1820 6624

$$

FIGUEROA

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

1 follow-up statement

768 
WGCA72 TJSJ 110104
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
904 PM AST TUE MAY 10 2011

PRC021-045-051-105-135-137-110114-
/O.EXP.TJSJ.FF.W.0009.000000T0000Z-110511T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BAYAMON PR-COMERIO PR-NARANJITO PR-TOA ALTA PR-DORADO PR-TOA BAJA PR-
904 PM AST TUE MAY 10 2011

...THE FLASH FLOOD WARNING HAS EXPIRED FOR TOA BAJA...DORADO...TOA
ALTA...NARANJITO...COMERIO AND BAYAMON MUNICIPALITIES...

DOPPLER RADAR INDICATED THAT THE HEAVY RAIN WHICH AFFECTED THIS AREA
HAD DISSIPATED OR MOVED AWAY. NO SIGNIFICANT ADDITIONAL RAINFALL IS
EXPECTED ACROSS THESE AREAS AT THIS TIME.

LAT...LON 1826 6629 1847 6632 1849 6614 1831 6613
      1821 6618 1817 6622

$$

FIGUEROA

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 10, 12:24 PM CDT	Areal Flood Advisory	JSJ		4 hr
May 10, 1:54 PM CDT	Areal Flood Advisory	JSJ		3 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2011 Every flash flood 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.