MANILA -- Water at the Angat Dam may fall below critical levels this month, according to the Department of Science and Technology (DOST).
DOST Secretary Mario Montejo said this is due to the extreme heat and the possible onset of El Niño in June.
Angat Dam supplies 90 percent of Metro Manila's water requirements.
It also provides irrigation for farms in Bulacan and Pangasinan.
State weather bureau PAGASA said El Niño may peak in the last quarter of 2014 and may last until the first quarter of 2015.
The findings are based on recent Sea Surface Temperature Anomaly (SSTA) readings in the Central and Eastern Equatorial Pacific (CEEP) that indicate a rise of 0.4 degrees Celsius from the normal temperature. El Niño conditions are characterized by an SSTA of 0.5 degrees Celsius or higher for a 3-month period.
El Niño is a global phenomenon within a 2-to 7-year cycle that brings reduced rainfalls.
On Thursday, Metro Manila's temperature sizzled at 36.4 degrees Celsius, the hottest so far for this year. -- With report from ANC