Flash Flood Warning 129, NWS JSJ

Issued

Sep 12, 2011, 7:14 PM CDT (00:14 UTC)

Expired

Sep 13, 2011, 12:15 AM CDT

In force

5 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 21 km from the middle of the area, began a volume at 00:13 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.

968 
WGCA52 TJSJ 130014
FFWSJU
PRC069-095-103-109-151-130215-
/O.NEW.TJSJ.FF.W.0129.110913T0014Z-110913T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
814 PM AST MON SEP 12 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     PATILLAS
     MAUNABO
     NAGUABO
     HUMACAO
     YABUCOA

* UNTIL 1015 PM AST

* AT 807 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
PERSISTENT MODERATE TO HEAVY RAIN OVER THE WARNED AREA AND 
ADDITIONAL SHOWERS ARE EXPECTED FOR THE NEXT FEW HOURS. IN 
ADDITION...LOCAL EMERGENCY MANAGERS REPORTED FLOODING ACROSS NAGUABO 
AND USGS RIVER SENSORS INDICATE THAT THE RIO GUAYANES IN YABUCOA IS 
APPROACHING FLOOD STAGE.

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.

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 1807 6602 1812 6590 1826 6573 1820 6568
      1802 6583 1796 6596

$$

JJA/RAM

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

141 
WGCA52 TJSJ 130212
FFWSJU
PRC069-095-103-109-151-130515-
/O.EXT.TJSJ.FF.W.0129.000000T0000Z-110913T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1012 PM AST MON SEP 12 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     PATILLAS
     MAUNABO
     NAGUABO
     HUMACAO
     YABUCOA

* UNTIL 115 AM AST

* AT 1004 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
STRONG THUNDERSTORMS PERSISTING OVER THE WARNED AREA. THIS AREA HAS 
BEEN AFFECTED BY FREQUENT STRONG SHOWERS AND THUNDERSTORMS FOR THE 
PAST SEVERAL HOURS AND THEY WILL CONTINUE FOR THE NEXT FEW HOURS. 
EMERGENCY MANAGERS HAVE REPORTED WIDESPREAD FLOODING IN ROADS AND 
URBAN AREAS AS WELL AS AREA RIVERS. THEREFORE...THE FLASH FLOOD 
WARNING HAS BEEN EXTENDED UNTIL 115 AM 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.

&&

LAT...LON 1807 6602 1812 6590 1826 6573 1820 6568
      1802 6583 1796 6596

$$

JJA

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.