The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Friday, Jan. 13, said the low pressure area (LPA) combined with the effect of the shear line may continue to cause rains in some parts of the country until Monday, Jan. 16.
PAGASA weather specialist Benison Estareja said the LPA was last spotted at a distance of 140 kilometers east of Hinatuan, Surigao del Sur at 3 a.m. on Friday.
He said that the large circulation of the LPA may continue to bring rains over parts of Southern Luzon, Visayas, and Northern Mindanao this Friday.
“It will remain almost stationary east of Mindanao, based on the latest track of the LPA,” Estareja said.
He also said that the shear line, a boundary line where the cold air from the northeast monsoon and warm air from the LPA meet may continue to enhance the rains from the LPA.
In the next 24 hours, scattered to widespread light to intense rains may prevail over Eastern Visayas, Central Visayas, Negros Occidental, Albay, Masbate, Sorsogon, and Catanduanes.
Scattered light to heavy rains may also affect Caraga, Northern Mindanao, Zamboanga Peninsula, Mimaropa, the rest of Western Visayas, the rest of Bicol Region, and Quezon.
PAGASA warned against possible floods or landslides in these areas.
Estareja said the LPA may move towards Visayas and Mindanao by Saturday, Jan. 14, and continue to cause rains in parts of Southern Luzon, Northern Mindanao, and Visayas.
By Sunday, Jan. 15, he said that the LPA may move between Bicol region and Visayas.
“The LPA will still cause rains in Southern Luzon and Visayas but the rains will decrease in Mindanao,” Estareja said.
By Monday, Jan. 16, he said that the intrusion of the northeast monsoon, locally called “amihan,” may cause the dissipation of the LPA.
“Rains may continue until the LPA dissipates by Monday,” he added.