Manila: The easterlies will bring rains over several parts of the country, the weather bureau said Saturday. In its 4 a.m. bulletin, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) announced that these weather conditions will cause cloudy skies with scattered rains and thunderstorms over Metro Manila, Calabarzon, Mimaropa, Bicol Region, and Eastern Visayas. According to Philippines News Agency, Batanes and the Babuyan Islands will experience cloudy skies with rains due to the northeasterly wind flow. The rest of the country is expected to have partly cloudy to cloudy skies with isolated rain showers or thunderstorms. Moderate to strong winds and moderate to rough seas are predicted over extreme Northern Luzon, while light to moderate winds and slight to moderate seas will prevail across the rest of the archipelago, PAGASA stated. Additionally, PAGASA has issued a warning regarding the "dangerous" heat index levels, with 46°C expected in Dagupan City, and 42°C in bot h Cotabato City and General Santos City.