SUMMARY
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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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