Pagasa Warns Mindanao of Flash Floods, Landslides Due to ITCZ
Pagasa: ITCZ Brings Flood, Landslide Risk to Mindanao

The state weather bureau has issued a critical alert for parts of Mindanao, forecasting dangerous conditions that could threaten communities. The Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) warns that the Intertropical Convergence Zone (ITCZ) is currently affecting Southern Mindanao, bringing with it a significant risk of flash floods and landslides.

24-Hour Forecast Paints a Wet Picture for Davao

In its official bulletin issued on January 13, 2026, and valid until January 14, Pagasa detailed the expected weather pattern. Southern Mindanao, particularly the Davao Region, will experience cloudy skies with scattered rain showers and thunderstorms. The agency emphasized that the main threat comes from intense rainfall occurring over short periods, which can quickly lead to dangerous situations.

Low-lying communities are at risk of sudden flooding, while areas near mountain slopes could experience landslides. Pagasa has specifically called on residents living in these vulnerable zones to remain extremely vigilant and to be ready to evacuate if local authorities give the order.

Long List of Rivers Under Close Watch

The weather agency identified a multitude of river systems across the Davao Region where water levels are expected to rise, potentially leading to overflow. Local Disaster Risk Reduction and Management Offices (LDRRMOs) have been instructed to monitor these waterways closely.

The rivers and tributaries under monitoring include:

  • Davao del Norte: Tagum–Libuganon, Tuganay, and Saug rivers.
  • Davao del Sur: Davao, Lasang, Bunawan, Matina, Talomo, Lipadas, Tagulaya, Sibulan, Digos, and Padada–Mainit river systems.
  • Davao de Oro: Matiao, Hijo, Agusan, and Manat rivers.
  • Davao Oriental: Cateel, Dapnan, Baganga, and over a dozen other rivers including Manay and Maya.
  • Davao Occidental: Panglan, Malita, Batanan, and numerous tributaries such as Lais, Lawan, and Calian.

Nationwide Weather Systems and Public Advisory

While Mindanao braces for the ITCZ, other parts of the Philippines are experiencing different weather influences. Pagasa reported that a shear line is affecting the eastern section of Northern Luzon. Meanwhile, the northeast monsoon (amihan) continues to influence the rest of Northern Luzon, bringing generally cloudy conditions with light to moderate rains.

The agency confirmed that as of January 2026, no low-pressure area (LPA) has developed inside the Philippine Area of Responsibility. The current weather disturbances are solely driven by the ITCZ, shear line, and the prevailing northeast monsoon.

Pagasa's final advisory to the public is clear: Stay updated through official Pagasa channels and local government announcements. Avoid crossing flooded roads or rivers, as water currents can be deceptively strong. Taking necessary precautions during heavy rainfall can save lives.