The weather bureau said it has been monitoring a low pressure area (LPA) inside the Philippine Area of Responsibility.
As of 3:00 a.m., the LPA was located 295 kilometers south, southeast of Kalayaan, Palawan, and embedded along the Intertropical Convergence Zone (ITCZ).
The LPA is unlikely to develop into a cyclone in the next 24 hours, but it will bring scattered rains and thunderstorms across Palawan.
The same weather condition is forecast across Mindanao, Western Visayas, and Negros Island due to the ITCZ.
Scattered rains and thunderstorms caused by the easterlies will also prevail over Eastern Samar, Leyte, and Southern Leyte.
Moderate to heavy rains in the above mentioned areas could result in flash floods or landslides, the Philippine Atmospheric, Geophysical and Astronomical Services Administration said.
The rest of the country will experience isolated rain showers or thunderstorms due to the easterlies.
Light to moderate winds and slight to moderate seas continue to prevail across the archipelago. (PNA)