MANILA, Philippines — The southwest monsoon or “habagat” and localized thunderstorms will trigger rains in many parts of the country on Thursday, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa). Pagasa weather specialist Aldczar Aurelio said that the “habagat” will particularly affect Metro Manila, Ilocos region, Cordillera Administrative Region, Zambales, Bataan, Tarlac,