MANILA — Cloudy skies with scattered rains and thunderstorms are expected over Metro Manila and several parts of Luzon on Wednesday due to the southwest monsoon, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA). In its 4 a.m. weather forecast, PAGASA said Metro Manila, the Ilocos Region, Benguet, Abra, Zambales, Bataan, Tarlac,…