The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) issued flood advisories for the Pasig-Marikina-Laguna de Bay and Tullahan river basins due to heavy rains from Severe Tropical Storm Kristine (Trami) on Thursday evening, Oct. 24.
The advisories, effective from 9 p.m., Thursday until 6 a.m., Friday, Oct. 26, warn of potential increases in water levels in several rivers and their tributaries, which may lead to flooding:
- Upper Marikina River: Rodriguez, Antipolo, and San Mateo, Rizal; Quezon City; and Marikina City
- Lower Marikina River: Pasig City, Mandaluyong City
- Pasig River: Pasig City, Makati City, Mandaluyong City, Manila
- San Juan River: Quezon City, San Juan, Manila
- Pagsanjan River: Pagsanjan, Laguna
- Tanay River: Tanay, Rizal
- Morong River: Morong, Rizal
- San Isidro River: Bay, Laguna
- Biñan River: San Pedro and Biñan, Laguna
- San Juan River: Calamba, Laguna
- Mango River: Rodriguez, Rizal
- Nangka River: Marikina City; San Mateo and Antipolo, Rizal
- Tullahan Rover: Quezon City, Caloocan, Malabon, Navotas, Valenzuela
PAGASA warned that moderate to heavy rains may persist over these areas in the next 12 hours.
“People living near the mountain slopes and in the low-lying areas of the abovementioned cities and local disaster risk reduction and management councils concerned are advised to take necessary precautionary measures,” PAGASA said in its flood advisory for Pasig-Marikina-Laguna de Bay river basin.
Meanwhile, PAGASA in its flood advisory for the Tullahan River advised those living near the riverbanks and in low-lying areas of Quezon City, Caloocan, Malabon, Navotas, and Valenzuela and the local disaster risk reduction and management councils concerned to be alert for possible flash floods.
“Road and street flooding is possible in several areas due to impounding water, poor or clogged drainage systems, and higher tide levels, which could render some roads impassable,” it warned.