Flash Flood Warning 40, NWS JSJ

Issued

Oct 26, 2012, 7:58 PM CDT (00:58 UTC)

Expired

Oct 26, 2012, 9:45 PM CDT

In force

107 min

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 7 km from the middle of the area, began a volume at 00:57 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.

097 
WGCA52 TJSJ 270058
FFWSJU
PRC025-035-041-270245-
/O.NEW.TJSJ.FF.W.0040.121027T0058Z-121027T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
858 PM AST FRI OCT 26 2012

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CAGUAS
     CAYEY
     CIDRA

* THIS WARNING INCLUDES ALL RIVERS...STREAMS AND TRIBUTARIES WITHIN 
THE WARNED AREA. 

* UNTIL 1045 PM AST

* AT 854 PM AST...DOPPLER WEATHER RADAR INDICATED THAT ISOLATED 
SHOWERS REMAINED ACROSS THE WARNING AREA. HOWEVER...THE TORRENTIAL 
RAINFALL THAT OCCURRED EARLIER...LEFT MANY AREAS WITH SIGNIFICANT 
FLOODING AND THESE FLOOD WATERS HAVE BEEN VERY SLOW TO RECEDE. IN 
ADDITION...ONLY A SMALL AMOUNT OF ADDITIONAL RAINFALL WOULD FURTHER 
AGGRAVATE THE ONGOING FLOOD PROBLEMS. THEREFORE...THE FLASH FLOOD 
WARNING HAS BEEN EXTENDED UNTIL 1045 PM AST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE 
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS 
SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR 
VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER 
DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. TURN 
AROUND...DONT DROWN.

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 1821 6618 1819 6613 1828 6603 1819 6602
      1813 6606 1812 6609 1812 6610 1808 6615

$$

BCS

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

326 
WGCA72 TJSJ 270252
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1052 PM AST FRI OCT 26 2012

PRC025-035-041-270320-
/O.EXP.TJSJ.FF.W.0040.000000T0000Z-121027T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAGUAS PR-CAYEY PR-CIDRA PR-
1052 PM AST FRI OCT 26 2012

...THE FLASH FLOOD WARNING HAS EXPIRED FOR CIDRA...CAYEY AND CAGUAS 
MUNICIPALITIES...

AT 1048 PM AST...DOPPLER WEATHER RADAR INDICATED THAT MOST OF THE 
SHOWERS AND THUNDERSTORMS THAT WERE AFFECTING THESE MUNICIPALITIES 
EARLIER HAD DIMINISHED IN INTENSITY OR MOVED AWAY FROM THE AREA. 
ALTHOUGH A SCATTERED SHOWER OR TWO COULD STILL OCCUR DURING THE NEXT 
30 MINUTES...THE IMMEDIATE THREAT FOR ANY ADDITIONAL PERSISTENT 
HEAVY RAINFALL OR NEW FLOODING HAS ENDED. THEREFORE...THE FLASH 
FLOOD WARNING WAS ALLOWED TO EXPIRE.

RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD HOWEVER BE ALERT 
TO PONDING OF WATER ON ROADWAYS AND ALLOW TIME FOR STREAMS...CREEKS 
AND RIVERS TO RETURN TO NORMAL LEVELS.

IN ADDITION...NEW SHOWERS AND THUNDERSTORMS COULD DEVELOP DURING THE 
OVERNIGHT HOURS. ALL RESIDENTS AND VISITORS SHOULD CONTINUE TO 
MONITOR THE WEATHER CLOSELY. 

LAT...LON 1821 6618 1819 6613 1828 6603 1819 6602
      1813 6606 1812 6609 1812 6610 1808 6615

$$

BCS

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

Flash Flood Warnings in Puerto Rico, 2012Every flash flood warning in 2012

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.