MANILA (UPDATE) - The amount of rainfall dumped in the past 10 days in some parts of Luzon was equivalent to a month's volume of rain, state weather bureau PAGASA said Monday.
PAGASA weather division chief Esperanza Cayanan said Sangley point in Cavite experienced a month's volume of rain in the past 10 days, while rains dumped over Iba, Zambales were equivalent to the 80 percent of a month's volume of rain.
The rain measurement was based on the historical average rainfall for the month of August.
The state weather bureau said the southwest monsoon (habagat) will continue to affect Luzon. Moderate to occasionally heavy rains will be experienced over Ilocos Region and the provinces of Benguet, Zambales and Bataan.
Light to moderate rains with isolated thunderstorms are expected over Metro Manila, Calabarzon, Cagayan Valley, the rest of Central Luzon, rest of Cordillera Administrative Region and the provinces of Mindoro, Marinduque, and Romblon.
PAGASA said a severe tropical storm outside the Philippine area of responsibility is currently enhancing the southwest monsoon.
At 4 a.m. Monday, severe tropical storm "Chantu" was spotted 2,400 kilometers east northeast of extreme Northern Luzon. It was packing maximum sustained winds of 95 kilometers per hour (kph) near the center and gusts of up to 120 kph.
Days of continuous rains have already claimed the lives of five people.
NDRRMC spokesperson Mina Marasigan said three people were killed after rain-saturated walls and structures collapsed in Manila and Quezon City on Saturday.
An unidentified body, meanwhile, was recovered at the Nagtahan Pumping Station in Manila Friday while a resident of Janiuay, Iloilo drowned in the Malbug River last Wednesday.
A total of 19,406 families or 80,467 individuals were affected by the heavy downpour.