Watch: Habagat-related stories top INQToday newscast Aug. 14

Over 3.7 million people across the Philippines have been impacted by the southwest monsoon, known locally as habagat, along with tropical cyclones Luis and Maymay, according to the National Disaster Risk Reduction and Management Council (NDRRMC). The figure includes both residents and visitors affected by the widespread flooding, landslides, and other weather-related incidents. The NDRRMC released its update on Thursday, highlighting the severity of the situation as the country grapples with the combined effects of the monsoon season and active typhoons. The impact of the habagat intensified by the presence of tropical cyclones Luis and Maymay, which contributed to record-breaking rainfall in many regions. The NDRRMC's report noted that the death toll from the storms had risen to 26, with ongoing assessments being conducted to determine the full extent of casualties and damage. The agency emphasized the need for continued vigilance and support for affected communities, particularly in flood-prone areas where infrastructure has been severely strained. Scientific research published by researchers from the Ateneo de Manila University suggests that the extreme rainfall associated with the habagat is linked to a phenomenon called the “moisture conveyor belt.” This refers to a vast stream of moisture originating from the Indian Ocean and extending into the western Pacific, which interacts with tropical cyclones and strengthened monsoon winds. The study indicates that such conditions are becoming more frequent, increasing the likelihood of severe weather events during the monsoon season. In response to the ongoing threat, Malacañang, the presidential office, issued directives to mitigate risks posed by the heavy rains. On August 10, the administration ordered government offices in Metro Manila and 15 provinces in Luzon to implement work-from-home arrangements. Face-to-face classes were also suspended at all educational levels in both public and private institutions. The order, formalized under Memorandum Circular No. 123, aimed to reduce exposure to hazardous conditions and ensure the safety of workers and students. Further action was taken on August 14, when Malacañang extended the work and learning suspension to additional areas, including the National Capital Region, Zambales, Bataan, Bulacan, Pampanga, Tarlac, Nueva Ecija, Cavite, Batangas, Rizal, Laguna, Quezon, and Occidental Mindoro. These measures were part of broader efforts to manage the impact of the habagat, which continues to bring torrential downpours and disrupt daily life. The Metropolitan Manila Development Authority (MMDA) also took steps to address the challenges posed by the weather. On August 15, the authority suspended the implementation of the expanded number coding scheme, a traffic management measure designed to reduce congestion. The decision followed advice from the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA), which confirmed that heavy rains would persist over parts of Luzon and the Visayas. PAGASA further warned that a low-pressure area (LPA) could develop within the Philippine area of responsibility by Sunday or early next week. If this occurs, it is expected to strengthen the habagat, potentially leading to even more intense rainfall and increased risk of flooding. The agency urged local governments to remain prepared and continue monitoring weather updates closely. As the situation evolves, authorities are working to coordinate relief efforts and provide assistance to those affected by the storms. With the potential for further weather disruptions, the focus remains on ensuring public safety and minimizing long-term impacts on communities.