MANILA, Philippines — Heavy rain due to Tropical Storm Ambo may cause lahar and sediment-laden streamflow along rivers that run down the slopes of Mayon Volcano in Albay, the Philippine Institute of Volcanology and Seismology (Phivolcs) warned Wednesday. According to Phivolcs, the bulk of erodible PDC deposits occupy the watershed areas of the Miisi, Mabinit, Buyuan, and Basud channels. Specifically, Phivolcs said channels in danger of potential lahar are the Miisi, Binaan, Anoling, Quirangay, Maninila, Masarawag, Muladbucad, Nasisi, Mabinit, Matan-ag, and Basud channels. “Communities and local government units beside these drainages are advised to be additionally vigilant and to move residents to high ground should heavy rains occur,” Phivolcs said. Ambo is expected to bring moderate to heavy rains over Albay on Thursday, according to a weather bulletin issued by the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (Pagasa).

Source: Philippine Daily Inquirer May 13, 2020 09:11 UTC