
054 
WGCA52 TJSJ 231412
FFWSJU
PRC009-019-021-035-041-045-051-057-105-135-137-232100-
/O.EXT.TJSJ.FF.W.0116.000000T0000Z-110823T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1012 AM AST TUE AUG 23 2011

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     BAYAMON
     CIDRA
     CAYEY
     COMERIO
     AIBONITO
     BARRANQUITAS
     NARANJITO
     TOA ALTA
     DORADO
     GUAYAMA
     TOA BAJA

* UNTIL 500 PM AST TUESDAY

* THIS IS A FLASH FLOOD EMERGENCY FOR COMERIO...HEADWATERS OF THE 
RIO DE LA PLATA BASIN.

* AT 958 AM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
A LINE OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAINS MOVING 
INTO THE HEADWATERS OF THE RIO DE LA PLATA. LOCAL LAW ENFORCEMENT 
OFFICIALS REPORTED EVACUATIONS HAVE BEGUN FOR SOME RESIDENTS ALONG 
THE RIVER AND THESE HIGH FLOWS WILL BE EVENTUALLY ROUTED 
DOWNSTREAM...THEREFORE A FLASH FLOOD EMERGENCY HAS BEEN ISSUED FOR 
THE DE LA PLATA RIVER.

FOR THE RIO DE LA PLATA FROM COMERIO TO TOA ALTA
     FLOOD STAGE COMERIO - 11 FEET. AT 1000 AM AST...THE USGS        
     SENSOR INDICATED THE RIVERS STAGE WAS 17.52 FEET AT COMERIO.   
     MAJOR FLOODING CONTINUES.

     FLOOD STAGE TOA ALTA - 16 FEET. AT 1000 AM AST...THE USGS       
     SENSOR INDICATED THE RIVERS STAGE WAS 20.03 FEET AT TOA ALTA.   
     MODERATE FLOODING IS FORECAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES. ADDITIONALLY...ROADS AND LANDS ALONG THE BANKS OF
CREEKS...STREAMS AND OTHER LOW LYING AND POOR DRAINAGE AREAS ARE
SUBJECT TO FLOODING. MOTORISTS ARE URGED TO AVOID ROADS WHERE
EXCESSIVE PONDING IS OBSERVED.

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.

&&

LAT...LON 1817 6631 1821 6624 1827 6623 1848 6629
      1847 6623 1830 6620 1818 6618 1812 6611
      1806 6609 1813 6632

$$

AAS

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