The state weather bureau said the trough or extension of a low-pressure area inside the Philippine Area of Responsibility is unlikely to develop into a tropical depression, but it is expected to bring scattered rain showers and thunderstorms over the parts of the country in the next three days.

In its latest weather bulletin, the Philippine Atmospheric, Geophysical, and Astronomical Services Administration, said that most parts of the country, including Metro Manila will only experience isolated rain showers and thunderstorms.

PAGASA weather specialist Grace Castañeda said there's no other weather disturbance that has been monitored within the PAR.

"We could expect better weather conditions in the coming days as we have not monitored any weather disturbance except the LPA which has a slim chance to develop into a storm," Castañeda said.

However, any changes will be closely monitored, she added.

The trough of LPA will be affecting the eastern portions of Central Luzon and Southern Luzon. While, scattered rain showers and thunderstorms will prevail over the Bicol, Aurora, and Quezon.

Similar conditions will persist mainly in the western portions of Southern Luzon, the Visayas, and Mindanao, but caused by the southwest monsoon, locally known as "habagat"

In particular, over Metro Manila, Mimaropa, the rest of Central Luzon, the rest of Calabarzon, La Union, Pangasinan, Benguet, Visayas, Zamboanga Peninsula, Bangsamoro Autonomous Region in Muslim Mindanao, Soccsksargen.

The LPA was last tracked over 610 kilometers east of Itbayat, Batanes, as of early Wednesday.

Meanwhile, PAGASA warned that moderate to heavy at times brought about by the LPA's trough and the southwest monsoon may cause flash floods and landslides in affected areas.

The rest of the Philippines will only have isolated rain showers or thunderstorms.