Sendong (2011) Floods in Cagayan de Oro and Iligan

15 December 2011


Tropical storm Sendong (international name, Washi) made landfall on December 15, 2011 in the southern regions of the country. The recorded 24-hour rainfall in Lumbia station of PAGASA reached 180.9 mm causing the overflow of the Cagayan de Oro River.

Though early warning forecasts were disseminated, the water raging from the mountains was overlooked. Sendong triggered the overflow of the river and the water coming from the highlands which also caused flash floods and landslides that sent mud and logs crashing down on communities traversing and near the river, mountain, and sea. The reported high tide for that day added to the high water level of the floods. The deadly storm killed 1,268 people with 49 others listed as missing. Most of the casualties were from the cities of Cagayan de Oro and Iligan. Those who survived were rendered homeless, seeking shelter in evacuation centers.

Sendong Flood, Cagayan de Oro and Iligan

Submerged subdivision in central Cagayan de Oro. (Photo courtesy of Lourdes College)

Aftermath of the Sendong floods where trees were also deposited downriver. (Source: annalyn.net)

Aftermath of the Sendong floods where trees were also deposited downriver. (Source: annalyn.net)

The impact of the Sendong floods on Isla de Oro in Cagayan de Oro City. (Photo courtesy of Philippine Daily Inquirer)

The impact of the Sendong floods on Isla de Oro in Cagayan de Oro City. (Photo courtesy of Philippine Daily Inquirer)

Orchids Home Subidivision, Santiago, Iligan before Sendong. (Source: http://www.firmbuilders.com.ph/)

Orchids Home Subidivision, Santiago, Iligan before Sendong. (Source: http://www.firmbuilders.com.ph/)

Orchids Home Subidivision was one of the settlements washed away the flash floods from Sendong. (Source: Dr. Mahar Lagmay, UP NIGS)

Orchids Home Subidivision was one of the settlements washed away the flash floods from Sendong. (Source: Dr. Mahar Lagmay, UP NIGS)


Acosta, J. (2011). Building resilience and adaptation. Philippine Daily Inquirer.
http://opinion.inquirer.net/20175/building-resilience-and-adaptation

NDRRMC. Final Report on the Effects and Emergency Management re Tropical SENDOG (WASHI) Status of Early Recovery Programs in Region X (Cagayan de Oro and Iligan Cities). (2012). NDRRMC.
http://www.ndrrmc.gov.ph/attachments/article/1347/Final_Report_on_the_Effects_and_Emergency_Management_re_Tropical_Storm_SENDONG_(WASHI)_Status_of_Early_Recovery_Programs_in_Region_X_issued_10FEB2014.pdf

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