The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said two low pressure areas (LPAs) had formed outside the country’s area of responsibility on Sunday, Sept. 8.

PAGASA Weather Specialist Grace Castañeda said one LPA is located east-northeast of extreme northern Luzon, while the other is located far east of Mindanao.

She said both LPAs are expected to maintain strength over the next 24 hours. However, the possibility of developing into a tropical cyclone in the coming days cannot be ruled out.

The next tropical cyclone names on PAGASA’s list are “Ferdie” and “Gener.” 

By Monday, Sept. 9, Castañeda said the LPA east-northeast ng northern Luzon could either enter the PAR or approach the northern boundary.

She added that if this happens, the LPA may slightly enhance the southwest monsoon (habagat) and increase the likelihood of rainfall in the western sections of Northern and Central Luzon.

Meanwhile, Castañeda said the LPA east of Mindanao could also slightly enhance the habagat if it moves closer to the country’s area of responsibility by the second half of the week.

This could lead to rainfall in the western parts of the Visayas and Mindanao as a result of the enhanced habagat, she added.

Over the next 24 hours, the weak habagat may bring cloudy skies with scattered rains and thunderstorms to Ilocos Norte, Ilocos Sur, Batanes, and Babuyan Islands.

PAGASA warned of possible flooding or landslides due to moderate to heavy rains.

The habagat may also bring partly cloudy to cloudy skies with isolated rain showers or thunderstorms to Metro Manila and the rest of Luzon.

Meanwhile, the rest of the country may experience partly cloudy to cloudy skies with isolated rain showers due to localized thunderstorms.

PAGASA also warned of potential flash floods or landslides during severe thunderstorms.