MANILA, Aug. 21 -- The southwest monsoon or "habagat" and the trough of a low pressure area (LPA) will bring rains in most places across the country on Thursday, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said.

The LPA, located 705 km. east of Infanta, Quezon, as of 3 a.m., has a medium chance of developing into a tropical cyclone in the next 24 hours.

However, its trough is forecast to cause scattered rains and thunderstorms across Metro Manila, Bicol Region, Calabarzon, Cagayan, Isabela, Aurora, Oriental Mindoro, Marinduque, Romblon, Northern Samar, Eastern Samar, Samar, and Biliran.

Same weather conditions will prevail over the rest of the Visayas, Zamboanga Peninsula, Basilan, Tawi-Taw...