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Marikina River triggers first alarm as water levels surge to 15 meters

The Marikina River has been placed under first alarm status Wednesday as heavy monsoon rains push water levels to 15 meters. Local authorities have advised residents in nearby communities to prepare for potential evacuation.

LSN Philippines · 19 August 2026

MANILA — The Marikina local government activated first alarm protocols for the Marikina River Wednesday morning following a sharp rise in water levels to 15 meters, driven by intense rainfall from the southwest monsoon, or habagat.

Residents living in low-lying areas and communities adjacent to the river have been instructed to remain vigilant and make preparations for possible evacuation should conditions worsen. The first alarm represents an early warning stage in the city's flood alert system, designed to give residents time to secure their belongings and relocate to safer ground if necessary.

The southwest monsoon has brought persistent heavy rains across the metro, contributing to elevated water levels across major waterways in the region. Marikina, located downstream of the Marikina River system, is particularly vulnerable to flooding during monsoon season.

Local authorities continue monitoring water levels and weather conditions. Updates on the river's status and evacuation orders, if necessary, are expected throughout the day as the weather system persists.