Due to the isolated light to moderate rains across the country, flood advisories in 11 regions were issued by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Tuesday, Dec.19.

In the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM), rivers of Lanao del Sur and its tributaries, particularly Dapao and Matling, along with rivers of Maguindanao and its tributaries will be affected.

In Central Luzon (Region 3), rivers of Aurora and tributaries including Casiguran, Aguang, and lower Umiray will also be affected.

PAGASA said flood advisory was issued in Bicol region (Region 5) where affected areas are rivers of Camarines Norte and tributaries particularly Labo and Daet Basud; rivers of Catanduanes and its tributaries Cabuyan, Bato, and Pajo; rivers and tributaries of Camarines Sur; Sorsogon rivers and tributaries; Albay rivers and tributaries Guinale and upper Donsol; and rivers of Masbate and its tributaries.

For Western Visayas (Region 6), Capiz rivers and tributaries; all rivers and tributaries of Guimaras; Antique rivers and its tributaries; Aklan rivers and tributaries particularly Aklan, Ibajay, and Jalo; rivers and tributaries of Negros Occidental; and Iloilo rivers and tributaries will also be affected.

For Central Visayas (Region 7), watercourses and tributaries of Bohol, Cebu, and Negros Oriental will be affected as well as all rivers and tributaries of Siquijor.

For Eastern Visayas (Region 8), the watercourses likely to be affected include rivers and tributaries of Leyte; rivers and tributaries of Eastern Samar; all rivers and tributaries of Biliran; Samar rivers and its tributaries; rivers and tributaries of Southern Leyte; and rivers and tributaries of Northern Samar.

In Zamboanga Peninsula (Region 9), PAGASA said rivers and tributaries of Zamboanga Sibugay, Zamboanga del Norte, and Zamboanga del Sur may also experience flooding.

Moreover, in Northern Mindanao (Region 10), flood warning was issued particularly in the rivers and tributaries of Misamis Occidental including Clarin, Palilan, and Aloran; rivers and tributaries of  Lanao del Norte including Mandulog, Agus, Liangan, and Maranding; all rivers and tributaries of Camiguin; Misamis Oriental rivers and its tributaries; and rivers and tributaries of Bukidnon.

In Davao region (Region 11), rivers and tributaries of Davao del Norte, Davao del Sur, Davao Occidental, Davao Oriental, and Davao de Oro will also be susceptible to floods.

Meanwhile in South Cotabato, Cotabato, Sultan Kudarat, Sarangani, General Santos (SOCCSKSARGEN) or Region 12, floods may also be expected particularly in the watercourses and tributaries of South Cotabato, North Cotabato, Sultan Kudarat and Sarangani.

In Caraga region (Region 13), PAGASA said rivers of Surigao del Norte and its tributaries particularly Surigao and Magallanes; Dinagat Island rivers and its tributaries; rivers of Surigao del Sur and tributaries; Agusan del Norte rivers and tributaries; and rivers and tributaries of Agusan del Sur will be affected by floods.