MANILA, Philippines — Flooding and landslides are possible in low-lying or susceptible areas in Cagayan, Apayao, and Isabela due to the heavy rainfall brought by shear line on Saturday, according to the state weather bureau.
In its rainfall outlook issued at 5 a.m., the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (Pagasa) said that the three provinces will experience moderate to heavy rainfall (50 to 100 millimeters) due to shear line, or the warm winds coming from the Pacific Ocean.
“Forecast rainfall may be higher in mountainous and elevated areas. Moreover, impacts in some areas may be worsened by significant antecedent rainfall,” Pagasa said.
With this, Pagasa warned that “localized flooding is possible mainly in areas that are urbanized, low-lying, or near rivers” and “landslide [is] possible in highly susceptible areas.”
Pagasa also said that Cagayan will experience moderate to heavy rainfall on Sunday.
In its 5 a.m. weather forecast, Pagasa weather specialist Daniel Villamil said that four weather systems will bring rains across the country on Saturday: shear line and northeast monsoon or amihan in Northern Luzon; easterlies in the eastern section of Central Luzon; and intertropical convergence zone in Palawan and portions of Mindanao.
Meanwhile, generally fair weather conditions may be observed in Metro Manila, most parts of Luzon, whole Visayas, and parts of Mindanao.
Pagasa on Friday also said that a LPA is “highly likely” to form inside the PAR in the coming days and may start affecting the country by Sunday, November 23. /das