The Philippine Atmospheric, Geophysical and Astronomical Services Administration said the Southwest Monsoon (habagat) and the Intertropical Convergence Zone will bring scattered rains and thunderstorms in the western sections of Central and Southern Luzon.
In its Tuesday afternoon forecast, PAGASA said the habagat will bring cloudy skies with scattered rain showers, and thunderstorms are expected in Zambales, Bataan, Mimaropa, the Western Visayas, and the Zamboanga Peninsula in the next 24 hours or until Wednesday.
PAGASA also warned of possible flash floods or landslides amid the moderate to heavy rain in these areas, while partly cloudy to cloudy skies with isolated rain showers or thunderstorms will prevail in the rest of the country due to the habagat and localized thunderstorms.
Severe thunderstorms may result to flash floods or landslides.
The wind speed forecast for the whole country is light to moderate, while coastal water conditions are slight to moderate, ranging from 0.6 meters to 2.1 meters.
PAGASA is likewise monitoring a tropical depression outside the Philippine Area of Responsibility that was spotted 1,565 kilometers east of extreme Northern Luzon and packing maximum sustained winds of 45 kph near the center, with gustiness of up to 55 kph.