Manila, Dec. 18 -- Three prevailing weather systems will bring rainfall in several areas across the country on Thursday, the weather bureau said.

The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said the intertropical convergence zone (ITCZ) will cause scattered rains and thunderstorms in Caraga, Davao Region, Palawan, Sarangani, South Cotabato, Basilan, Sulu, and Tawi-Tawi.

The same weather conditions will prevail across the Bicol Region, Northern Samar, and Eastern Samar due to the easterlies.

Rains will be experienced in Cagayan Valley, Apayao, Kalinga, Mountain Province, Ifugao, Aurora, and Quezon due to the northeast monsoon or "amihan".

Moderate to heavy rains in those areas could result ...