Flash Flood Warning 136, NWS JSJ

Issued

Sep 13, 2011, 8:39 AM CDT (13:39 UTC)

Expired

Sep 13, 2011, 11:30 AM CDT

In force

3 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 78 km from the middle of the area, began a volume at 13:43 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.

989 
WGCA52 TJSJ 131339
FFWSJU
PRC001-055-059-081-093-111-113-121-141-153-131630-
/O.NEW.TJSJ.FF.W.0136.110913T1339Z-110913T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
939 AM AST TUE SEP 13 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     ADJUNTAS
     MARICAO
     SABANA GRANDE
     UTUADO
     YAUCO
     LARES
     GUAYANILLA
     GUANICA
     PONCE
     PENUELAS

* UNTIL 1230 PM AST

* AT 929 AM AST...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS 
WITH VERY HEAVY RAIN MOVING ACROSS THESE MUNICIPALITIES WITH ANOTHER 
BAND OF RAINFALL DEVELOPING AND MOVING ONSHORE FROM THE COASTAL 
WATERS TRAINING OVER THESE SAME AREAS. THIS WILL CAUSE FLASH 
FLOODING IN LOW LYING AREAS...CREEKS...STREAMS AND RIVERS. IN 
ADDITION...MUDSLIDES AND DEBRIS FLOW CAN BE EXPECTED IN AREAS OF 
STEEP TERRAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

IN MOUNTAINOUS OR HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER
CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT
ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT
ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES
AWAY.

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 1793 6692 1816 6693 1826 6679 1821 6670
      1796 6665 1795 6678

$$

AAS

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

590 
WGCA72 TJSJ 131625
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1225 PM AST TUE SEP 13 2011

PRC001-055-059-081-093-111-113-121-141-153-131631-
/O.EXP.TJSJ.FF.W.0136.000000T0000Z-110913T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADJUNTAS PR-MARICAO PR-SABANA GRANDE PR-UTUADO PR-YAUCO PR-LARES PR-
GUAYANILLA PR-GUANICA PR-PONCE PR-PENUELAS PR-
1225 PM AST TUE SEP 13 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1230 PM AST FOR PENUELAS...
PONCE...GUANICA...GUAYANILLA...LARES...YAUCO...UTUADO...SABANA 
GRANDE...MARICAO AND ADJUNTAS MUNICIPALITIES...AN AREAL FLOOD 
WARNING REPLACES THIS WARNING FOR THE RIO GUAYANILLA. 

DOPPLER RADAR INDICATED THAT WHILE SOME SHOWERS AND THUNDERSTORMS 
CONTINUES TO MOVE ACROSS THESE AREAS...THE TORRENTIAL DOWNPOURS 
WHICH AFFECTED THIS AREA HAD MOVED AWAY. 

LAT...LON 1793 6692 1816 6693 1826 6679 1821 6670
      1796 6665 1795 6678

$$

AAS

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.