MANILA – The southwest monsoon (habagat) will continue to affect the western sections of Luzon and Visayas, bringing partly cloudy to cloudy skies with isolated rain showers or thunderstorms, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said Monday. In its 4 a.m. weather bulletin, PAGASA said Metro Manila, the Ilocos Region, Cordillera Administrative…