Overview
A trough of a low-pressure area (LPA) is shaping the weather over Luzon and parts of the country, bringing cloudy skies, scattered rains, and occasional thunderstorms. The latest forecast from PAGASA indicates that Metro Manila and several nearby provinces will experience active weather conditions as the trough interacts with the broader wind patterns over the region.
What is driving the rain?
The main driver is the trough associated with an LPA located some distance from the coast. As of 2 a.m., the LPA was about 445 kilometers west of Pag-asa Island in the West Philippine Sea and is not forecast to develop into a tropical depression within the next 24 hours. The trough acts as a weather trough, drawing in moist air and triggering showers and thunderstorms especially in areas with daytime heating and orographic effects.
Impacted areas in Luzon and nearby islands
According to PAGASA, cloudy skies with scattered rains and thunderstorms are likely to prevail over:
- Metro Manila
- Zambales, Bataan
- Cavite, Batangas
- Occidental Mindoro
Residents should remain alert for possible heavy downpours, lightning, and sudden rain showers that can affect travel and outdoor activities.
Other weather features to watch
Separately, the Southwesterly Windflow is expected to bring cloudy conditions and rain across other parts of the country. Areas that may experience moderate to heavy rains include:
- Palawan
- Western Visayas
- Negros Island Region
- Zamboanga Peninsula
- BARMM (Bangsamoro Autonomous Region in Muslim Mindanao)
These winds can enhance moisture transport, contributing to localized downpours even in areas not directly under the LPA trough.
General forecast for the rest of the country
Outside the named areas, expect localized thunderstorms. These flashes of rain are typical in the dry season pattern when moist air masses interact with daytime heating or mountain barriers. Outdoor plans should include a light rain jacket and an umbrella for quick showers.
Winds and coastal conditions
Winds and coastal waters will be moderate in Extreme Northern Luzon. For the rest of the country, winds are anticipated to be light to moderate, with slight to moderate coastal waters. Mariners and coastal residents should monitor weather updates, especially if planning travel by sea or near beaches.
What residents should do
- Check PAGASA weather advisories for updates on the trough and potential rainfall intensities.
- Prepare for localized heavy rains that could cause minor flooding in low-lying areas and poor drainage zones.
- Drive carefully during showers; reduce speed when roads are slick and visibility is reduced.
- Secure outdoor objects and ensure drainage is clear to prevent water buildup.
Conclusion
The trough of the LPA, combined with the Southwesterly Windflow, is driving a pattern of cloudy skies and rains across Luzon and nearby regions. While the LPA is not expected to become a tropical cyclone in the next day, its interaction with regional winds means residents should stay prepared for wet weather and related hazards. Stay tuned to PAGASA’s updates, especially if you plan travel or outdoor activities in Metro Manila, Zambales, Bataan, Cavite, Batangas, and Occidental Mindoro.
🇵🇠Photo shows a group of weather professionals monitoring satellite data and weather models in a light-filled control room. Realistic, daytime lighting with natural colors. No text, logos, or brand names visible.
