BY THE NUMBERS: Ondoy, Habagat 2012, Habagat 2013

Rappler.com

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In recent years, monsoon rains or 'habagat' have become as destructive as Ondoy and other storms that enter the Philippine Area of Responsibility (PAR)

MANILA, Philippines – It was a storm that caught everyone by surprise.

On this day in 2009, Ondoy (international codename Ketsana) brought massive rainfall and caused severe flooding in Luzon, particularly in Metro Manila and neighboring provinces.

In just 9 hours, Ondoy dumped over a month’s volume of rain. The typhoon lasted for a few days, but the recovery from it was long, tough and, to those directly affected, painful.

In recent years, rains brought by the southwest monsoon – locally known as habagat – and enhanced by nearby storms have become as destructive as the storms that enter the Philippine Area of Responsibility (PAR).

In August 2012, the habagat was enhanced by a typhoon with international codename Haikui.

In the same month the following year, another habagat was enhanced by severe tropical storm Maring (international name Trami).

Rappler collated comparative information on tropical storm Ondoy and the monsoon rains of August 2012 and August 2013:

  Tropical Storm Ondoy (Ketsana) Habagat 2012
(enhanced by Typhoon Haikui) 
Habagat 2013
(enhanced by Tropical Storm Maring)
Dates Sept 24-27, 2009 Aug 6-8, 2012 Aug 17-21, 2013

Highest Measured Accumulated Rainfall
556.1 mm of rain
(4-day period)
measured in Science Garden,
Quezon City
1,007.4 mm of rain
(3-day period)
measured in Science Garden,
Quezon City
1,120.2 mm of rain
(5-day period)
measured in Sangley Point, Cavite 

Affected Population
993,227 families or
4,901,763 persons in
2,018 barangays,
172 municipalities,
16 cities, and
26 provinces in
12 regions
934,285 families or
4,236,151 persons in
2,634 barangays,
175 municipalities,
36 cities, and
17 provinces in
6 regions
689,527 families or
3,096,392 persons in
2,124 barangays,
160 municipalities,
37 cities, and
18 provinces in
6 regions

Evacuation Centers
244 evacuation centers
15,798 families or
70,124 persons
656 evacuation centers
48,784 families or
212,632 persons

outside evacuation centers
 166,979 families or
776,370 persons
159 evacuation centers
5,761 families or
23,364 persons

outside evacuation centers
5,192 families or
26,907 persons

Casualties
464 dead
529 injured
37 missing
109 dead
14 injured
4 missing
27 dead
30 injured
4 missing

Status of Lifelines 
 57 roads and 1 bridge impassable to all vehicles in Regions II, III, IV, CAR, and NCR
(at the height of the storm)
 16 roads and 3 bridges impassable to all vehicles in Regions III, IV-A, CAR, and NCR
(as of Aug 17, 2012) 
8 roads impassable to all vehicles in Regions I, III, IV-B, and CAR
(as of Aug 30, 2013) 

Flooding 
184 cities/municipalities
in 12 regions
59 cities/municipalities
in 3 regions
19 cities/municipalities
in 3 regions 

Damage
P11 billion P 3 billion P 689 million

State of Calamity 
23 provinces and
Metro Manila

Pres. Arroyo declared a state of national calamity via Proclamation No. 1898 on Oct 2, 2009
 9 provinces,
12 cities, and
13 towns in
7 regions
5 provinces,
10 cities,
18 towns, and
7 barangays in
5 regions 

 

 – Rappler.com

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