Manila, Jan. 4 -- Three weather systems will continue to affect most parts of the country, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said Sunday.

In its 4 a.m. advisory, the weather bureau said the Visayas and the provinces of Palawan, Catanduanes, Albay, Sorsogon, Masbate, and Romblon will have cloudy skies with scattered rains and isolated thunderstorms due to the shear line.

Caraga will also experience cloudy skies with scattered rains and thunderstorms caused by the easterlies.

The northeast monsoon or amihan will continue to bring cloudy skies with rains over Cagayan Valley, Aurora, Quezon, Marinduque, Oriental Mindoro, and the rest of Bicol Region.

These weather systems, PAGASA sai...