The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) has issued Flood Bulletin No. 1 for the National Capital Region, Pasig-Marikina, and Laguna de Bay River Basin areas. The advisory is valid from 11:00 AM to 11:00 PM on 09 November 2025.
Current Weather Situation
At 7:00 AM, the center of the eye of Super Typhoon Uwan was observed approximately 125 kilometers east-northeast of Virac, Catanduanes. The weather system has maximum sustained winds of 185 km/h near the center and gusts reaching 230 km/h while moving west-northwest at 25 km/h.
Rainfall Conditions
Light rains were recorded over the basin in the past 12 hours ending at 10:00 AM. Forecasts indicate moderate to heavy rainfall in the next 12 hours, ending at 10:00 PM.
Areas Likely to be Affected
The following watercourses and localities may experience increased water levels and possible flooding:
Upper Marikina River Basin
- Rodriguez
- Antipolo
- San Mateo
- Quezon City
- Marikina
Lower Marikina River
- Pasig
- Mandaluyong
Pasig River
- Pasig
- Makati
- Mandaluyong
- Manila
San Juan River
- Quezon City
- San Juan
- Manila
Main Laguna de Bay River Basin and Tributaries
- Pagsanjan River: Pagsanjan, Laguna
- Tanay River: Tanay, Rizal
- Morong River: Morong, Rizal
- San Isidro River: Bay, Laguna
- Binan River: San Pedro and Binan, Laguna
- San Juan River: Calamba, Laguna
Other Tributaries
- Mango River: Rodriguez
- Nangka River: Marikina, San Mateo, Antipolo
- San Juan River: Quezon City, San Juan, Manila
- Cainta River: Cainta
- Taytay River: Taytay
- Buli Creek: Pasig, Cainta
Public Advisory
Street and road flooding may occur in several areas due to impounded water, clogged drainage systems, and higher tide levels. Some roads may become impassable. People residing near mountain slopes and low-lying areas are advised to remain alert for possible flash floods.
Local Disaster Risk Reduction and Management Councils in the affected areas are advised to take necessary preparedness measures.
Monitoring
Continuous monitoring is encouraged, particularly for potential heavy rainfall warnings to be issued by the National Capital Region PAGASA Regional Services Division.
This bulletin has been prepared and noted by the Flood Forecasting and Warning Center, Hydro-Meteorology Division.