The trough or extension of a low-pressure area (LPA) west of the Philippines may still affect Southern Luzon, Bicol region, Visayas, and Mindanao within 24 hours.
Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) weather specialist Ezra Bulquerin said the LPA at 435 kilometers west-southwest of Puerto Princesa City was expected to leave the country's area of responsibility Thursday.
However, its extension may still bring scattered light to moderate with at times heavy rains over Quezon, Oriental Mindoro, Occidental Mindoro, Marinduque, Romblon, Palawan, Albay, Camarines Norte, Camarines Sur, Catanduanes, Sorsogon, Masbate, Visayas, and Mindanao.
PAGASA advised those in high-risk areas to remain alert for possible floods or landslides during heavy or prolonged rainfall.
Based on the State weather bureau's extended weather outlook, the southwest monsoon or "habagat" may bring rain showers or thunderstorms over Metro Manila from Friday until Sunday.
Tagaytay City, Lipa City, and Legazpi City may also experience rain showers until Sunday while rain showers over Puerto Princesa City, lloilo City, and Bacolod City will likely prevail until Saturday.
Tuguegarao City, Laoag City, and Baguio City will continue to have warm weather until Saturday, before rain showers may affect these areas by Sunday.
Cebu City, Davao City, and Zamboanga City may experience rain showers and thunderstorms this Friday, while improving weather condition is expected in these areas by Saturday.
The rest of the country will have partly cloudy to cloudy skies with chances of isolated rain showers due to localized thunderstorms in the afternoon or evening.