The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) warns that heavy monsoon rains will persist across Luzon until Wednesday [1].
The sustained rainfall threatens to disrupt transport and commerce in the nation's capital, where flooding often paralyzes major thoroughfares and affects thousands of commuters.
An intensified southwest monsoon, known locally as habagat, is driving the current weather pattern [1]. The agency said the rain will continue over Luzon on Monday, Aug. 17 [2]. A PAGASA spokesperson said the weather will cause a "significant" level of impact in Metro Manila until Wednesday, Aug. 19 [3].
In response to the worsening conditions, Philippine authorities mobilized additional personnel and resources to flood-hit communities across the country on Sunday [4]. These efforts focus on evacuation and emergency relief as water levels rise in low-lying areas.
Weather monitors are also tracking other potential threats to the region. PAGASA said it is currently monitoring two low pressure areas [5]. The interaction between these systems and the southwest monsoon can often enhance rainfall totals, increasing the risk of landslides in mountainous terrain.
Residents in Metro Manila and the wider Luzon region are advised to remain vigilant. Local government units have been alerted to monitor river levels and implement preemptive evacuations where necessary to prevent casualties from flash floods [1].
“"significant" level of impact in Metro Manila until Wednesday”
The persistence of the southwest monsoon combined with the presence of two low pressure areas suggests a prolonged period of atmospheric instability. For Metro Manila, this indicates that drainage systems will be pushed to their limits, likely leading to systemic urban flooding that persists until the monsoon weakens after Wednesday.
