Intermittent moderate to heavy rains that prevailed from July 26-30, 2010 trigerred the overflowing of Simuay River and other tributaries which caused flooding in the municipalities of Sultan Kudarat, Pagalungan and Datu Montawal, all in Maguindanao; Lambayong, Sultan Kudarat Province; and Kabacan, North Cotabato, thus, affecting 16,184 families in 35 barangays in Region XII.
Source: glidenumber
For more summary of flooding in Region XII please see also official NDCC update.