To: 639163047000 Type: Auto bId: rId: ID: 23789 [WEATHER UPDATE] Issued at 4:00 AM, 16 May 2023 SYNOPSIS: Frontal System affecting Extreme Northern Luzon. Southwesterly Surface Windflow affecting the western sections of Northern and Central Luzon. Forecast Weather Condition Batanes and Babuyan Islands: Cloudy skies with rains, Frontal System, Possible flash floods to landslides due to moderate with at times heavy rains Ilocos Region, Cagayan, Apayao, Zambales, and Bataan: Cloudy skies with scattered rainshowers and thunderstorms, Southwesterly Surface Windflow Possible flash floods or landslides during severe thunderstorms, Metro Manila and the rest of the country: Partly cloudy to cloudy skies with isolated rainshowers or thunderstorms Southwesterly Surface Windflow / Localized Thunderstorms, Possible flash floods or landslides during severe thunderstorms,