9th GEOSS Asia-Pacific Symposium
11-13 January 2017
Tokyo International Exchange Center
Plaza Heisei,Tokyo, Japan

FLOOD EARLY WARNINGSYSTEM in the PHILIPPINES

Flood and Drought EWS Philippines

Flaviana D. Hilario, Ph.D.
Deputy Administrator for R&D
PAGASA/DOSTPAGASA: The nation’s meteorologicaland hydrological service (NMHS)
To provide weather, flood, climate andastronomical products & services to promote
the people’s safety and well-being, andcontribute to national development
PAGASA – an attached agency of theDepartment of Science and Technology(DOST).
The Philippines, represented by PAGASA,
is a Member of the World MeteorologicalOrganization (WMO), a specialized bodyof the United Nations.

IMPACTS OF ENSO ON PHILIPPINE RAINFALL
Legend:Severe drought
impacts
Drought impacts
with major losses
Moderate drought
impacts
Near normal toabove normal
condition
Way above normal
condition
Potential for flood
damageSevere flood
damageRED colored years are EL
NINO years, BLUE coloredyears are LA NINA years
and BLACK colored years
are NON ENSO years

PAGASA

The Weather and Climate Authority

PayongPAGASA18 major river
basins421 principalriver basins

The PAGASA and its Flood
Early Warning System

Evolution of FFWS and FFWSDO in the PH
Angat &PampangaRiver Basin(PRB) FFWS

Pantabangan

FFWSDO

PasigMarikinaLaguna LakeEFCOS(MMDA)

Flood disasterin Bulacan

1972

1973 1978

1983

Upgrading ofPampanga
FFWS
Design inflow ofAngat - exceeded

1986

1992

1993

2003

Upgrading ofAgno FFWS /Enhancementof PasigMarikina

Flood due toOndoy & Pepeng

Flood due Pedring& Sendong2011
2012-20132010-20122004 2009

Flood disasterin Bulacan

Agno, Bicol& Cagayan
River Basins
FFWS

Binga /Ambuklao& Magat
FFWSDOSan Roque
FFWSDOJICA-TCP:
Upgrading of
FFWSDO

GoJ:
Upgrading of
Bicol FFWS
Norad:
Magat FWSDO

EO 2011 – Ipo telemetered FFWSDO - operational
2012 – Caliraya FFWSDO will be operational

NETWORK of Existing PAGASAHYDROLOGICAL Stations(Telemetered major river basinsand dams)

River Basin

Sub-Center

Monitoring Stations

Abra

Existing

On-going installation

AbulogCo-locate with
Aparri RADAR(Under NPGA 2014)
Installation not started

Agno

Existing

Operational

Bicol

Existing

Operational

CagayanExisting

Operational

Pampanga

Existing

Operational

Pasig-Marikina

Existing

Operational

River Basin

Sub-Center

Monitoring Stations

Ilog-Hilabangan

On-goingconstruction

Contract awarded(Installation not started)

JalaurUnder RIMES Project
Co-locate with(Installation to commence
Iloilo RADAR
this February 2017)

Panay

On-going
construction

Contract awarded(Installation not started)

River Basin

Sub-Center

Monitoring Stations

Agus

Contract
awarded(Under NPGA 2014)
Installation not started

AgusanOn-Going
Construction

Funded under PAGASA
Modernization

BuayanMalungon

On-Going
Construction

Cagayan De
Oro(Under NPGA 2012)
Under bidding process
Operational

For bidding(Under NPGA 2012)
Under bidding process

Tagoloan
DavaoExisting

Mindanao

ContractAwarded(Under NPGA 2012)
Under bidding processFunded under PAGASA
Modernization

TagumLibuganon

Existing

Operational

Community Based Flood
Early Warning System(CBFEWS)

Communitybased Flood
Early Warning
System(CBFEWS)CAGAYAN FFWSILOCOS SUR
AGNO FFWSAURORA FEWSZAMBALESPAMPANGA FFWS

BULACAN
PASIGMARIKINA(EFCOS)LAGUNABICOL FFWSCAVITE

LEYTE

GOVT. OF JAPAN (TELEMETERED)
GOVT. OF JAPAN (TELEMETERED)(UNDER MMDA)
GOVT. OF KOREA (TELEMETERED)JALAUR FEWSDUMANGAS,ILOILO

UNDP- AusAID Community based
LGU INITIATIVENORTHERNSAMAR

SOUTHERN
LEYTE
SURIGAO
DEL NORTE

AGUS-LAKELANAO FEWSSURIGAODEL SURFlood Warning Protocol(Batingaw)

I, (state
FLOOD RISKhelp
MODELLINGname),will
end hunger andmalnutrition
PASIG-MARIKINA RIVER BASIN (FLOOD)

Free Powerpoint Templates

FLOOD MODELS TYPICALLY CONSIST OF

1. Rainfall-runoff model
2. Hydraulic model

I will help promotebreastfeeding andcorrect complementary
feeding practices
of infants andyoung children

FLOOD RISK MODELLING• Add text here

I will help promotebreastfeeding andcorrect complementary
feeding practices
ofinfants
andHAZARDEXPOSURE
VULNERABILITY
young children
RISK

DAMAGE MEASURESFOR EACH AEP
Damaged Floor
Area Equivalent(ha)Building Damage
Cost (Peso)

Number of People
with InundatedHomese.g. 20 ha ofbuilding floorarea with 50%
damage = 10 ha‘damaged floorarea equivalent’‘Damaged floorarea equivalent’ x‘buildingreplacement cost’ ‘Inundated floorarea’ x‘Population per
floor area’Measures
damage,not ₱₱ value

Measures
damageconsidering₱₱ valueDrought Monitoring

Free Powerpoint TemplatesSimplified
versionPAGASA

The Weather and Climate Authority

PayongPAGASADROUGHT/DRY CONDITION MAPS & ADVISORYPAGASA

The Weather and Climate Authority

PayongPAGASAANGAT DAM

EL NIÑO(1997-1998)

Manifestations

PAGASA

The Weather and Climate Authority

PayongPAGASACurrent Initiatives on Drought
Monitoring• Specialized Precipitation Index(SPI)• The use of satellite derived indices(NDVI)PAGASA

The Weather and Climate Authority

PayongPAGASA

THANK YOU!
Website:www.pagasa.dost.gov.phFacebook:www.facebook.com/
pagasa.dost.gov.phTwitter:@dost_pagasa
Typhoon+632-9271541+632-9271335

Flood+632-9266970+632-9204052

Climate+632-4351675+632-4340955

IEC+632-4342696+632-9279308

PAGASA

The Weather and Climate Authority

PayongPAGASA