Two low pressure areas (LPAs) alongside the southwest monsoon (Habagat) are set to bring widespread rains across several regions of the country on Tuesday, August 4, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).
In an early morning weather report, PAGASA weather specialist Veronica Torres noted that Northern and Central Luzon will bear the brunt of the two LPAs, whereas the monsoon will trigger rainfall over Metro Manila, sections of Southern Luzon, and the western edge of the Visayas.
“Itong dalawang low pressure area na ito ang magpapaulan sa Northern Luzon and Central Luzon area. Samantala ‘yung Southwest Monsoon o Habagat ang magpapaulan sa areas ng Metro Manila and then ilang parts ng Southern Luzon at western most portions nga ng Visayas area,” Torres explained.
The weather agency clarified that neither LPA is expected to intensify into a tropical cyclone.
As of 3 a.m., the remnants of former Tropical Depression Luis were tracked around Baggao, Cagayan. Forecasters indicate the weather system could shift back over open water and eventually merge with the broader circulation of Typhoon Dolphin.
Concurrently, the second LPA was spotted off the coastal waters of Balaoan, La Union, and is projected to linger through Wednesday.
Heavy Rainfall, Flood Warnings Issued
PAGASA issued warnings for heavy to intense downpours over Zambales and Bataan throughout Tuesday. Moderate to heavy rainfall is expected to persist across Northern Luzon, Central Luzon, Metro Manila, and CALABARZON through Thursday.
Authorities cautioned residents in low-lying and urban regions—especially those near river systems—against potential flash floods. Likewise, communities in mountainous zones were warned against rain-induced landslides.
Typhoon Dolphin Tracking Outside PAR
PAGASA is also keeping close tabs on Typhoon Dolphin, which currently remains outside the Philippine Area of Responsibility (PAR).
Located 2,330 kilometers east-northeast of Extreme Northern Luzon as of 3 a.m., Dolphin maintains maximum sustained winds of 150 km/h with gusts reaching 185 km/h, tracking westward at 25 km/h.
While Dolphin might skirt the northern boundary of the PAR, PAGASA stated that a landfall remains unlikely and direct land impacts are not expected.
However, the approaching typhoon could further enhance the southwest monsoon, prolonging wet conditions across key regions in the days ahead.