MANILA, Philippines — Cloudy skies and rain showers will prevail over parts of Luzon on Tuesday due to the effects of the northeast monsoon or “amihan,” according to the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (Pagasa). “Bukas, makakaranas ng maulap na kalangitan na may mga mahihinang pag-ulan sa Cagayan Valley at kasama na rin