By Alexandria San Juan
A new low pressure area (LPA) has entered the Philippine area of responsibility (PAR) on Monday night, bringing showers and thunderstorms in parts of Luzon and Visayas today.
In its 4 a.m. weather update issued Friday, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said the LPA was last spotted off 975 kilometers east of Catarman in Northern Samar.
According to PAGASA weather specialist Ariel Rojas, the LPA has a slim chance to develop into a tropical depression based on their windmap analysis in the next 24 hours.
However, the trough or extension of the LPA will bring cloudy skies with scattered rainshowers and thunderstorms over Bicol Region, Eastern Visayas, Dinagat Islands, Surigao del Norte and Surigao del Sur.
The province of Batanes and Babuyan Group of Islands will experience cloudy skies with isolated rainshowers and thunderstorms due to a weak southwest monsoon or “habagat.”
While in Metro Manila and the rest of the country, partly cloudy to cloudy skies with isolated rainshowers will prevail because of localized thunderstorms.
The state weather bureau warned residents on areas affected by the trough of LPA and habagat on possible flash floods or landslides during severe thunderstorms.
Meanwhile, with the absence of sustained rainfall rain due to the weak habagat, the water elevation in Angat Dam slightly decreased on Tuesday.
Based on the data from PAGASA, Angat Dam’s water level on Tuesday was at 177.39 meters above sea level (masl), slightly lower from the 177.60 masl recorded on Monday.
The rise in the water level of Angat Dam slowed down during the weekend following its continuous increases since the last week of July due to the amount of monsoon rains and rainfall brought by Typhoon “Hanna.”
The current elevation in Angat Dam is only three meters short from its normal operating level of 180 meters but still above the 160-meter critical mark.
Angat Dam, located in Norzagaray, Bulacan, is the major water source of households in Metro Manila and neighboring provinces.