MANILA, Dec. 3 -- Two weather systems will cause rains in parts of the country on Wednesday, the weather bureau said.

The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said the Intertropical Convergence Zone (ITCZ) affecting southern Mindanao will bring scattered rains and thunderstorms across Basilan, Sulu, and Tawi-Tawi.

Rains caused by the northeast monsoon or "amihan" will prevail in Cagayan Valley, Ilocos Norte, Apayao, Kalinga, and Aurora.

Moderate to heavy rains in the areas above could result in flash floods or landslides, PAGASA advised.

The northeast monsoon will also cause isolated light rains in the rest of Ilocos Region, the rest of Cordillera Administrative Region, and the rest of ...