Flash Flood Warning 48, NWS JSJ

Issued

Jun 4, 2011, 3:38 PM CDT (20:38 UTC)

Expired

Jun 4, 2011, 6:30 PM CDT

In force

3 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 36 km from the middle of the area, began a volume at 20:42 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.

746 
WGCA52 TJSJ 042038
FFWSJU
PRC051-105-135-137-042330-
/O.NEW.TJSJ.FF.W.0048.110604T2038Z-110604T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
438 PM AST SAT JUN 4 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     NARANJITO
     TOA ALTA
     DORADO
     TOA BAJA

* UNTIL 730 PM AST

* AT 430 PM AST...RUNOFF FROM PREVIOUS HEAVY RAINFALL HAS RESULTED   
IN SIGNIFICANT RISES ON RIO DE LA PLATA AND ITS TRIBUTARIES AND THE 
RIVER IS NOW ABOVE FLOOD STAGE ACROSS NARANJITO...TOA ALTA...DORADO 
AND TOA BAJA. MOTORISTS DRIVING IN FLOOD PRONE AREAS ALONG RIO DE LA 
PLATA SHOULD EXERCISE EXTREME CAUTION. MOVE TO HIGHER GROUND 
IMMEDIATELY AND NEVER TRY TO CROSS A FLOODED ROADWAY.

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 1845 6628 1845 6624 1830 6619 1829 6628

$$

FIGUEROA

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

301 
WGCA72 TJSJ 042333
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
733 PM AST SAT JUN 4 2011

PRC051-105-135-137-042340-
/O.EXP.TJSJ.FF.W.0048.000000T0000Z-110604T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NARANJITO PR-TOA ALTA PR-DORADO PR-TOA BAJA PR-
733 PM AST SAT JUN 4 2011

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

DOPPLER RADAR INDICATED THAT LIGHT TO MODERATE SHOWERS PREVAIL 
ACROSS THIS AREA AND THEREFORE THE FLASH FLOOD WARNING HAS BEEN 
CANCELLED FOR THESE MUNICIPALITIES.  

HOWEVER...THE USGS RIVER GAGE SENSOR AT RIO DE LA PLATA AND ITS 
TRIBUTARIES...INDICATED THAT THE RIVER LEVEL IS BELOW FLOOD STAGE 
BUT RAISING...AND FOR THAT REASON...THE FLASH FLOOD WARNING WILL BE 
REPLACED BY A RIVER OR FLOOD WARNING. 

LAT...LON 1845 6628 1845 6624 1830 6619 1829 6628

$$

FIGUEROA

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

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

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.