Marikina River Water Level Drops—But Second Alarm Remains: What Happens Next?

MARIKINA CITY, Philippines — The water level of the Marikina River may have started to recede early Sunday, August 30, but authorities are keeping the Second Alarm in place as heavy rains brought by the Southwest Monsoon, or Habagat, continue to threaten Metro Manila.

According to data from the Marikina City Public Information Office, the river’s water level reached 18.1 meters at around 3:30 a.m. before dropping to 17.7 meters at 4:50 a.m. and 17.3 meters as of 5:25 a.m. The decline offered a brief sign of relief, but the river remained well above the threshold for the Second Alarm.

The alert was first raised to Second Alarm at 1:50 p.m. on Saturday after the river reached the 16-meter mark amid persistent monsoon rains. The water level continued to climb overnight before beginning to fall early Sunday.

Under Marikina City’s warning system, the First Alarm is raised at 15 meters, signaling residents in affected areas to prepare for possible evacuation. The Second Alarm begins at 16 meters and triggers preemptive evacuation measures, while the Third Alarm at 18 meters signals mandatory evacuation.

Metro Manila Still Facing Flood Threat

The situation along the Marikina River comes as the enhanced Southwest Monsoon continues to bring heavy rainfall across parts of Metro Manila. Separate reports said persistent rains have flooded several roads and raised water levels in rivers and other waterways, with authorities continuing to monitor conditions closely.

The slight drop in the Marikina River’s water level does not automatically mean the danger has passed. Continued rainfall can cause water levels to rise again, especially in a river system that receives runoff from surrounding areas.

Residents living near the river and in flood-prone communities are advised to remain vigilant, monitor official announcements, and follow evacuation instructions from local authorities when necessary.

The Bottom Line

For now, the water is moving down—but Marikina remains on alert.

With the river still under Second Alarm and monsoon rains continuing to affect Metro Manila, the next few hours could be crucial. Authorities and residents alike are watching one question closely:

Will the water continue to recede—or could another round of heavy rain send the Marikina River rising again?