The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Wednesday, Nov. 9, said three weather systems are expected to bring some rains over parts of the country in the next 24 hours.
Batanes, Cagayan, Isabela, Camarines Norte, and Camarines Sur may experience cloudy weather with scattered rain showers and thunderstorms due to the shear line and easterlies.
A shear line is an area where cold and warm air meets, while easterlies are warm winds coming from the Pacific Ocean.
The intertropical convergence zone (ITCZ)—a region where winds coming from the northeast and southeast hemispheres converge—may also bring cloudy weather with scattered rain showers and thunderstorms over Caraga Region, Davao Region, and Soccsksargen.
PAGASA warned those in areas affected by these weather systems to stay vigilant against possible flash floods or landslides during moderate to heavy rains.
Meanwhile, the rest of the country, including Metro Manila, will have partly cloudy to cloudy weather with isolated rain showers or thunderstorms because of the easterlies and localized thunderstorms.
The public is also advised to be vigilant against possible flash floods or landslides during severe thunderstorms, which are often accompanied by sudden heavy rains, lightning, thunder, gusts of wind, and sometimes hail.