Republic of the Philippines Department of Science and Technology PHILIPPINE ATMOSPHERIC, GEOPHYSICAL AND ASTRONOMICAL SERVICES ADMINISTRATION P A G A S A Pampanga River Basin River Basin Flood Forecasting and Warning Center:etc DMGC, Brgy. Maimpis, San Fernando City, Pampanga http://prffwc.synthasite.com Contacts: (045) 455-1701 / 09993366416 / [email protected] FLOOD BULLETIN NO. 4 EXPECTED FLOOD P = POSSIBLE O = OCCUR PAMPANGA RIVER BASIN SITUATION T = THREATENING F = PERSIST ISSUED AT 5:00 PM, 21 JULY 2018 VALID UNTIL THE NEXT ISSUANCE AT 5:00 AM TOMORROW UNLESS THERE IS AN ITERMEDIATE BULLETIN AVERAGE BASIN RAINFALL PAST 24-HRS ENDING AT 4:00 PM TODAY: 67 MM FORECAST 24-HRS: 30 TO 50 MM EXPECTED BASIN RESPONSE WATER LEVEL / RIVER/LAKE/SWAMP TREND AT FLOOD SITUATION LOW-LYING AREAS LIKELY TO BE RAINGAUGE STATION STATION MESSAGE AFFECTED NOW AT 7.37 M. / SLOW RISE ABOVE FLOODING IS STILL ARAYAT STATION, 6.0 M. ALARM WL TO CONTINUE BUT CABIAO, ARAYAT, CANDABA, SAN LUIS, SAN THREATENING UNTIL PAMPANGA RIVER TO REMAIN BELOW 8.5 M CRITICAL SIMON AND APALIT TOMORROW MORNING WL BY EARLY TOMORROW CANDABA, SAN MIGUEL (W/IN SWAMP NOW AT 5.0 M. / TO CONTINUE TO FLOODING TO OCCUR AREA), SAN ILDEFONSO (W/IN SWAMP CANDABA STATION, SLOW FILLING-UP OF SWAMP WL TO THIS AFTERNOON AND AREA), SAN LUIS, SAN SIMON, APALIT, CANDABA SWAMP REACH ABOVE 5.0 M. CRITICAL WL WILL PERSIST FOR CALUMPIT, PULILAN, BALIUAG AND SAN BEGINNING THIS AFTERNOON SEVERAL DAYS RAFAEL NOW AT 4.35 M. / SLOW RISE ABOVE ZARAGOZA STATION, 2.5 M. ALARM WL TO CONTINUE TO FLOODING TO OCCUR LA PAZ, CONCEPCION, ZARAGOZA, SAN RIO CHICO RIVER REACH 4.5 M. CRITICAL WL LATE LATE TONIGHT ANTONIO AND CABIAO TONIGHT NOW AT 2.70 M. / TO CONTINUE ITS FLOODING IS STILL SULIPAN STATION, MACABEBE, MASANTOL, APALIT, CALUMPIT, SLOW RISE BUT TO REMAIN BELOW POSSIBLE BY PAMPANGA RIVER HAGONOY AND PAOMBONG 3.6 M. ALERT WL UNTIL TOMORROW TOMORROW COASTAL FLOODING IN THE LOW-LYING RIVERSIDE AND SEASHORE AREAS AFFECTED BY MACABEBE, MASANTOL, SASMUAN, TIDES HAS OCCURRED EARLY THIS MORNING; ACCUMULATION OF RAINWATER (PONDING) GUAGUA, LUBAO, BACOLOR, APALIT AT RELATIVELY LOW-LYING AREAS OF PASAC-GUAGUA SUB-BASIN & AT LOWER SECTIONS MOSTLY THE BULACAN-PAMPANGA DELTA OF PAMPANGA RIVER ESPECIALLY THOSE AREAS WITH POOR DRAINAGE SYSTEMS. AREAS THE RESIDENTS & LOCAL DISASTER RISK REDUCTION AND MANAGEMENT COUNCILS (LDRRMCS) CONCERNED ARE ADVISED TO TAKE PRECAUTIONARY MEASURES TO MITIGATE THE ADVERSE IMPACTS OF RIVERINE FLOODING AND FLOODING DUE TO PONDING COMBINED WITH THE EFFECTS OF TIDE INCLUDING THOSE AREAS WITH POOR DRAINAGE SYSTEMS. PREPARED BY : PRFFWC - NBN / RPY / JRD / RFD NOTED BY : HTH.