The water levels of five dams in Luzon continue to drop because of the El Niño phenomenon.
In a bulletin, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) said the water level of Angat dam in Bulacan province was 196.45 meters as of Monday morning.
The dam’s normal water level is 212 meters.
According to hydrologist Gine Nivares, the water level by June will possibly dip to 180 meters.
This drop, Pagasa said, will result in reduced water allocation in Metro Manila and in irrigation supply beyond the country’s premier region.
Angat dam’s water level, it added, would not remain normal even if it rained in June.
Heavy rains can be expected only by July, according to Pag-asa.
Pagasa cited isolated rain showers for the slight rise.
It said the water level in Ambuklao dam in Benguet province also fell from the normal 752 meters to 747.40 meters.
Water level of Binga dam, also in Benguet, also plunged from 575 meters to 569.54 meters.
San Roque dam’s water level dropped to 253.30 meters from the normal 280 meters and so did Pantabangan dam in Nueva Ecija province, to 192.52 meters from the normal 221 meters.
Meanwhile, the water level in Magat dam in Isabela province rose by 0.15 meters also on Monday, bringing the water level to 170.80 meters or more than 10 meters above its normal level of 160 meters.