Flash Flood Warning 18, NWS JSJ

Issued

Aug 23, 2014, 8:33 PM CDT (01:33 UTC)

Expired

Aug 24, 2014, 5:00 AM CDT

In force

8 hr

Issued by

NWS JSJ

Area

Storm-based polygon

Flood severity

None

The San Juan radar (TJUA), 52 km from the middle of the area, began a volume at 01:35 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.

688 
WGCA52 TJSJ 240133
FFWSJU
PRC017-039-091-101-107-145-240400-
/O.NEW.TJSJ.FF.W.0018.140824T0133Z-140824T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
933 PM AST SAT AUG 23 2014

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS REISSUED AND EXTENDED

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     BARCELONETA
     CIALES
     MANATI
     MOROVIS
     OROCOVIS
     VEGA BAJA

* UNTIL MIDNIGHT AST

* AT 925 PM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
PERSISTENT HEAVY RAINFALL CONTINUED ALONG THE RIO GRANDE DE MANATI 
BASIN AND THE SURROUNDING AREAS. ADDITIONAL SHOWERS AND ISOLATED  
THUNDERSTORMS CONTINUED TO MOVE IN AND OUT OF THE WARNED AREA.  
SHARP RISES IN WATER LEVELS ON THE RIO GRANDE DE MANATI...ITS 
TRIBUTARIES CAN BE EXPECTED WITHIN THE FEW NEXT HOURS AS SIGNIFICANT 
RUNOFF FROM THE HEAVY RAINFALL WILL RAPIDLY REACH THE RIVER BASIN. 

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 AND NEVER TRY TO CROSS A 
FLOODED ROADWAY. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER 
BEGINS RISING.

IN MOUNTAINOUS OR HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER 
CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. 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 1849 6652 1847 6646 1820 6636 1818 6640
      1818 6653 1834 6655 1835 6653 1839 6653
      1841 6655 1849 6656

$$
RAM

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

422 
WGCA52 TJSJ 240348
FFWSJU
PRC017-039-091-101-107-145-241000-
/O.EXT.TJSJ.FF.W.0018.000000T0000Z-140824T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1148 PM AST SAT AUG 23 2014

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     BARCELONETA
     CIALES
     MANATI
     MOROVIS
     OROCOVIS
     VEGA BAJA

* UNTIL 600 AM AST SUNDAY

* AT 1141 PM AST...USGS SENSORS ON THE MANATI RIVER INDICATE THE     
  RIVER IS WELL ABOVE FLOOD STAGE AT BOTH CIALES AND MANATI. EXPECT  
  LOW LYING AREAS ALONG THE MANATI RIVER TO FLOOD. ROUTES 666...667  
  AND HIGHWAY 2 ARE STILL FLOODED.

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 1849 6652 1847 6646 1820 6636 1818 6640
      1818 6653 1834 6655 1835 6653 1839 6653
      1841 6655 1849 6656

$$

ROSA

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

Flash Flood Warnings in Puerto Rico, 2014Every flash flood warning in 2014

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.