Multiple weather systems including a low pressure area off Palawan was expected to bring more rains to large parts of the country on Thursday, weather bureau PAGASA said.
In Marikina City, where Super Typhoon Rolly caused massive flooding last November, residents kept vigil overnight as the water level at the Marikina River rose to the second highest in a three-step system.
The alert was down to Level 1 at daybreak, according to the Marikina City public information office.
At 3 a.m., the low pressure area was located 210 kilometers south southwest of Puerto Princesa City, PAGASA said. This is exacerbated by the inter-tropical convergence zone or ITCZ, where winds north and south of the equator meet, and the tail-end of a frontal system, of the intersection of warm and cold air.
Here is a more detailed forecast from PAGASA for Thursday, Jan. 21:
Cloudy skies with scattered rainshowers and thunderstorms
Areas: Metro Manila, Cagayan Valley, Cordillera Administrative Region, Central Luzon, Quezon, and Rizal
Cause: Tail-end of Frontal System
Effects: Possible flash floods or landslides due to moderate with at times heavy rains
Cloudy skies with scattered rainshowers and thunderstorms
Areas: Rest of CALABARZON, MIMAROPA, Western Visayas, Central Visayas, and Mindanao
Cause: LPA/ITCZ
Effects: Possible flash floods or landslides due to moderate with at times heavy rains
Partly cloudy to cloudy skies with isolated rainshowers
Area: The rest of the country
Cause: Localized thunderstorms
Effects: Possible flash floods or landslides due to severe thunderstorms
