Two Low Pressure Areas (LPAs) have developed—one east of Luzon and another east of Visayas on Sunday morning, Sept. 15, said the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).
As of 8 a.m., PAGASA monitored two LPAs—one located 440 kilometers (km) east of Casiguran, Aurora, within the Philippine Area of Responsibility (PAR), and the other 2,145 km east of Eastern Visayas, outside the PAR.
Weather Specialist Grace Castañeda said PAGASA is closely monitoring these weather systems for possible development into tropical cyclones.
Throughout this week, the southwest monsoon, or “habagat,” will continue to bring heavy rains to most of southern Luzon, the Visayas, and western Mindanao, Castañeda added.
From Sunday to Monday, Sept. 16, PAGASA said heavy to intense rainfall (100 to 200 millimeters) may affect northern Palawan, Occidental Mindoro, Aklan, Antique, and Negros Occidental.
Moderate to heavy rainfall may also affect Batangas, Albay, Sorsogon, Masbate, the rest of Palawan, Oriental Mindoro, Marinduque, Romblon, the rest of Western Visayas, and the rest of Negros Island Region (NIR).
From Monday to Wednesday, Sept. 17, PAGASA said northern Palawan, Aklan, Antique, and Negros Occidental may continue to experience heavy to intense rainfall.
Moderate to heavy rainfall may also persist in Albay, Sorsogon, Masbate, the rest of Palawan, Oriental Mindoro, Marinduque, Romblon, the rest of Western Visayas, and the rest of NIR until Wednesday.
PAGASA warned of possible flooding or landslides, especially in areas classified as “highly or very highly susceptible” to these hazards and areas that have received substantial rainfall in the past few days.
24-hour rainfall forecast
Over the next 24 hours, cloudy skies with scattered rains and thunderstorms may prevail across Metro Manila, Zamboanga Peninsula, Bangsamoro Autonomous Region in Muslim Mindanao, Soccsksargen, Caraga, Northern Mindanao, Zambales, Bataan, and the rest of Visayas, Calabarzon, and Bicol Region.
The rest of Mindanao will be partly cloudy to cloudy with isolated rain showers or thunderstorms.
Meanwhile, the rest of Luzon will have partly cloudy to cloudy skies with isolated rain showers due to localized thunderstorms.
Castañeda said based on the latest analysis, Northern and Central Luzon may also experience heavy rainfall later this week.