The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Friday afternoon, Nov. 12, warned that rains from the shear line or tail-end of frontal system could trigger flash floods or landslides over the eastern sections of Visayas and Mindanao.
PAGASA said the prevalence of the shear line may bring cloudy skies with scattered light to, at times, heavy rains and thunderstorms over Eastern Visayas, Caraga, Northern Mindanao, and Davao Region in the next 24 hours.
"Under these conditions, flash flooding and rain-induced landslides are possible, especially in areas that are highly or very highly susceptible to these hazards as identified in hazard maps," it said.
The shear line and northeast monsoon or "amihan" may also bring cloudy skies with light rains over Batanes and Cagayan.
Partly cloudy to cloudy conditions with isolated light rains may prevail over Ilocos Region, Cordillera Administrative Region, and the rest of Cagayan Valley.
Meanwhile, Metro Manila and the rest of the country will have partly cloudy to cloudy skies with isolated rain showers or thunderstorms due to localized thunderstorms.
PAGASA also advised those that may experience severe thunderstorms to remain vigilant against possible flash floods or landslides.