The Philippine Atmospheric Geophysical and Astronomical Services Administration (Pagasa) raised heavy rainfall advisories in Mindanao due to the effects of the tail-end of a cold front.
Pagasa said the red rainfall alert, the highest rainfall advisory, was raised in Compostela Valley, Davao del Norte, Davao Oriental, Surigao del Sur, Surigao del Norte, Agusan del Norte, Agusan del Sur and Dinagat Islands. The residents were warned of serious flooding in low-lying areas and landslides in mountainous areas.
Local governments in the affected areas should prepare residents for evacuation, the bureau said.
The orange warning was raised over Misamis Oriental, Bukidnon, Camiguin, Lanao del Norte, Davao Occidental, Davao del Sur, Davao City, Sarangani, Sultan Kudarat, Maguindanao, General Santos City, Cotabato City, Lanao del Sur, South Cotabato and Zamboanga del Norte.
Under an orange rainfall advisory, residents are warned against possible landslides.
Pagasa also said that flooding was possible in low-lying areas particluarly along river channels in Zamboanga del Sur, Zamboanga Sibugay, Zamboanga City, Misamis Occidental, Basilan, Sulu and Tawi-tawi which have been places under a yellow alert.
Meanwhile, Central and Eastern Visayas and the rest of Mindanao will have cloudy skies with light to moderate rains and isolated thunderstorms, Pagasa said.