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Manila Bulletin devider Philippines devider National devider 3 major Luzon dams release water amid threat of potential super typhoon

3 major Luzon dams release water amid threat of potential super typhoon

Published Nov 7, 2025 03:40 pm
PAGASA
PAGASA
The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Friday, Nov. 7 warned residents to take precautionary measures as three major dams in Luzon begin releasing water ahead of heavy rains from the approaching storm.
Before Friday noon, the center of Severe Tropical Storm Fung-wong was located 1,325 kilometers east of the Visayas. The storm is expected to enter the Philippine Area of Responsibility between late Friday evening and Saturday morning, Nov. 8, where it will be named “Uwan.”
As of 8 a.m., Angat Dam in Norzagaray, Bulacan, recorded a water level of 211.14 meters, exceeding its normal high water level of 210 meters by 1.14 meters.
PAGASA hydrologist Juan Paolo Pamintuan said the National Power Corporation Angat Dam Office advised on Thursday, Nov. 6, that one gate would be opened at 3 p.m. Friday.
Downstream Ipo Dam, also in Norzagaray, had a water level of 100.73 meters, near its spilling level of 101.1 meters.
Pamintuan said the Angat Dam Office had advised that one gate would also be opened there.
He urged communities towns along the Angat River, including Norzagaray, Angat, San Rafael, Bustos, Baliuag, Pulilan, Plaridel, Calumpit, Hagonoy, and Paombong, to take precautionary measurs, as they could experience flooding, even though the water releases from Angat and Ipo dams are relatively modest.
La Mesa Dam in Quezon City recorded 79.01 meters, well below its overflow level of 80.15 meters.
Pamintuan said based on rainfall forecasts from the approaching storm, the likelihood of overflow is low, but PAGASA continues to monitor the dam, particularly if rainfall shifts toward Central Luzon and Metro Manila.
Northern Luzon’s cascading dams are also being closely monitored.
Ambuklao Dam in Bokod, Benguet, had a water level of 750.23 meters, just below its normal high of 752 meters, while Binga Dam in Itogon, Benguet, was at 573.64 meters, below its normal high of 575 meters.
Pamintuan said both dams are “very likely” to release water if the storm brings heavy rainfall.
San Roque Dam in San Manuel, Pangasinan, had a water level of 273.53 meters, below its normal high of 280 meters.
Pamintuan noted that water released from Ambuklao and Binga, combined with heavy rain, could prompt San Roque to open its gates.
In Central Luzon, Pantabangan Dam in Nueva Ecija had a water level of 214.52 meters, below its normal high of 221 meters.
Pamintuan said there is a small chance of gate openings, but prolonged rainfall could push the dam toward its critical level.
Magat Dam in Ramon, Isabela, was at 187.64 meters, below its normal high of 192 meters.
One gate is already open, releasing water into the Magat River.
Pamintuan said areas that could be affected include Alfonso Lista in Ifugao, and the towns of Ramon, San Mateo, Aurora, Cabatuan, Luna, Reina Mercedes, Burgos, Naguilian, and Gamu in Isabela.
Residents in these areas were advised to take precautionary measures.

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FUNG-WONG UWAN SUPER TYPHOON PAGASA ANGAT DAM MAGAT DAM
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