STATE hydrologists reported on Sunday that at least two dams opened their gates amid heavy rains brought by the southwest monsoon enhanced by the exiting Tropical Storm Maring.
Hydrologists of the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) said that Magat dam in Isabela and Ipo dam in Bulacan had at least one gate open each.
Pagasa said that as of Sunday, one gate of Magat dam was opened at one meter, as it saw water elevation of 191.55 meters.
Meanwhile, Ipo dam had a water elevation of 100.90 meters and kept one gate open at 0.3 meter.
Heavy rains had fallen over Metro Manila and parts of Luzon because of the southwest monsoon enhanced by Maring.
State weather forecasters had said Maring would continue to enhance the southwest monsoon that will bring moderate to occasionally heavy rain showers and thunderstorms over the western section of Luzon.
Maring maintained its strength as it continued to crawl eastward from northern Luzon.
It packed maximum winds of 65 kilometers per hour (kph) near the center and is moving east-northeast at 7kph.
On Wednesday morning it is expected to be 940km northeast of Itbayat, Batanes.
Pagasa said that Maring might bring rainfall of five to 15 milimeter per hour (moderate to heavy) within its 300-km diameter.
“Fishermen specially those using small sea crafts are advised not to venture out over the seaboards of Northern and Central Luzon, and over the seaboard of Cavite, Mindoro Occidental, and over the western coast of Batangas due to the possible big waves generated by the enhanced southwest monsoon,” it said.