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A low pressure area is barreling towards the Philippines, state weather bureau PAGASA said Sunday as millions of Filipino Catholics marked the start of Holy Week.

The LPA may enter the Philippine area of responsibility on Monday or Tuesday. It is likely to intensify into a cyclone, the third to hit the country this year, PAGASA weather forecaster Aldczar Aurelio told DZMM.

The brewing storm, spotted 2,435 kilometers east of Mindanao at 5 a.m., will be named "Caloy" when it becomes a cyclone, he added.

For now, the tail-end of a cold front will bring occasionally heavy rains that may trigger floods and landslides in the regions of Eastern and Central Visayas, Northern Mindanao and Caraga, PAGASA said.

The northeast monsoon or amihan, meanwhile, will bring light rains in Cordillera, Cagayan Valley, Bicol, Metro Manila and the rest of Luzon.

Visit the ABS-CBN Weather Center for the latest weather updates.