MANILA -- The Intertropical Convergenze Zone (ITCZ) continues to bring cloudy skies with rains over Visayas and Mindanao on Thursday, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa).

The ITCZ across Visayas, which is the thick clouds coming from the south of Asia, is considered a breeding ground for low-pressure areas (LPAs) or potential cyclones.

For Thursday forecast, Pagasa said the presence of ITCZ will bring cloudy skies with light to moderate rains and thunderstorms over MIMAROPA (Marinduque, Occidental Mindoro, Oriental Mindoro, Palawan and Romblon), Bicol Region, Visayas and Mindanao.

Meanwhile, partly cloudy to cloudy skies with isolated thunderstorms mostly in the afternoon or evening will prevail over the rest of Luzon including Metro Manila.

Light to moderate winds blowing from the southwest to south will prevail throughout the archipelago and its coastal waters will be slight to moderate.

Highest temperature in Metro Manila on Wednesday was at 34.0 degrees Celsius recorded around 1:50 p.m. at the Science Garden in Quezon City.

Temperature on Thursday in Metro Manila will range between 25-34 degrees Celsius while the heat index will be 30-39 degrees Celsius.

The heat index are human discomfort index that gives the "apparent" temperature or what human perceive or feel as the temperature affecting their body. High air temperatures and high relative humidity will give high apparent temperatures or indices. Full exposure to sunshine can increase the heat index by 9°C.(PNA)