The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said on Monday, Jan. 13, that several areas across the archipelago will continue to experience rain, even though no tropical cyclone is currently affecting the country.

PAGASA Weather Specialist Obet Badrina said that while there is a slim chance of a tropical cyclone developing this week, other weather systems will still bring cloudy skies and scattered rains to various parts of the country.

In the next 24 hours, the shear line will bring cloudy skies, scattered rains, and isolated thunderstorms to Eastern Visayas, Bicol Region, Mimaropa, and Quezon.

The shear line, caused by the collision of cold winds of the northeast monsoon (amihan) and warm winds from the Pacific Ocean (easterlies), has been affecting these areas in the past few days and is typical during the peak of the amihan season.

Meanwhile, the easterlies will continue to cause cloudy skies, scattered rains, and thunderstorms over Caraga and Davao Region.

Metro Manila, Cagayan Valley, Cordillera Administrative Region, Aurora, Bulacan, Cavite, Laguna, Batangas, and Rizal may also experience cloudy skies and occasional rain due to the amihan.

PAGASA warned residents affected by the three weather systems to remain alert for possible flash floods or landslides, especially during moderate to heavy rainfall.

Overall, the rest of the country can expect generally fair weather.

PAGASA said the amihan will have minimal impact on the rest of Luzon, where partly cloudy to cloudy skies and isolated light rains are expected.

The rest of the country will experience partly cloudy to cloudy skies with isolated rain showers or thunderstorms due to the easterlies.