Philippines, Jan. 13 -- Three weather systems will cause rain over most areas of the country, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said Monday.

The shear line will bring scattered rains and isolated thunderstorms across Eastern Visayas, Bicol Region, Mimaropa, and Quezon.

It will also cause moderate to heavy rains over Quezon, Catanduanes, Camarines Norte, Camarines Sur, Albay, Sorsogon, and Northern Samar.

The easterlies will cause scattered rains and thunderstorms across Caraga and Davao Region.

Rains caused by the northeast monsoon will prevail over Metro Manila, Cagayan Valley, Cordillera Administrative Region, Aurora, Bulacan, Cavite, Laguna, Batangas, and Rizal.

Moderate to h...