Two LPAs, tropical depression monitored as southwest monsoon persists
Two low-pressure areas (LPAs) and a tropical depression are being monitored as the southwest monsoon continues to threaten Luzon and Visayas, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Tuesday. Both of the LPAs have a high chance of developing into a tropical depression within the next 24 hours, PAGASA said […]
Source: BusinessWorld Philippines · August 18, 2026 at 8:31 AM · AI-assisted report
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MANILA, 18 AUGUST 2026 —
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Lead The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Tuesday warned that two low‑pressure areas (LPAs) and a tropical depression are being monitored as the southwest monsoon continues to threaten Luzon and the Visayas. Both LPAs have a high probability of developing into tropical depressions within the next 24 hours, PAGASA said in its 10:00 a.m. tropical cyclone bulletin.
Market Impact
Malaysia market impact The developments are unlikely to affect Malaysian markets directly, as the disturbances remain outside the Philippine Area of Responsibility (PAR). However, the continued southwest monsoon could influence regional weather patterns, potentially impacting supply chains and commodity prices in the broader Southeast Asian region. Investors should monitor any downstream effects on agricultural output and logistics.
Details from the source The nearer LPA lies 400 km west of Calayan, Cagayan, while the farther LPA is located 1,170 km east of extreme northern Luzon. PAGASA also tracks a tropical depression 3,160 km east of northeastern Mindanao, all outside the PAR. Updated information on the disturbances is expected by 5:00 p.m.
The southwest monsoon, which caused widespread flooding in Metro Manila and surrounding areas on Monday, is projected to bring intense rainfall—100 to 200 mm—in Zambales, Bataan, Cavite, Batangas and Occidental Mindoro. Heavy rains (50 to 100 mm) are forecast for Metro Manila, La Union, Benguet, Pangasinan, Ilocos Sur, Abra, Tarlac, Pampanga, Bulacan, Nueva Ecija, Laguna, Rizal, Oriental Mindoro and Antique. PAGASA warned of potential flooding in urbanised, low‑lying and near‑river areas, with localized flooding likely under these conditions. Similar rainfall is expected to continue until Friday noon.
Outlook PAGASA will issue further updates on the LPAs and tropical depression by 5:00 p.m. The southwest monsoon is expected to persist, posing ongoing risks of flooding and landslides across the Philippines. While the immediate impact on Malaysian markets is limited, regional weather disruptions could influence commodity flows and supply chains in the coming days.
Related: Manila