Flood Alert Level Guide & Online Resources for Monitoring Marikina River & Floods

Marikina City has a four-stage alarm level system for the Marikina River:

• Alarm Level 1, when the water is 15 meters above sea level, means "warning" (babala)
• Alarm Level 2, when the water is 16 meters above sea level, means "prepare" (maghanda)
• Alarm Level 3, when the water is 17 meters above sea level, means "evacuate" (lumikas)

Stock Photo - Marikina River

These alarm levels are based on the depth of water in Marikina River (Sto. Nino). Malanday, Nangka and Tumana are considered critical areas.





Also follow these Twitter accounts for Marikina updates.

Marikina Public Information Office
PIO Marikina ‏@MarikinaPIO
https://twitter.com/MarikinaPIO

Official Twitter Account of Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA-DOST)

PAGASA-DOST @dost_pagasa
https://twitter.com/dost_pagasa

Marikina Local Government Unit
Marikina LGU ‏@MarikinaLGU
https://twitter.com/MarikinaLGU

Rescue PH
RescuePH ‏ @RescuePH

https://twitter.com/RescuePH

We coordinate with rescue units in the Philippines. Please use the hashtag#RescuePH

For regular updates on the Marikina water level, access 

http://syncsysph.com/councilmarikinagovph/data/riverlevel.html

for important information about Marikina River Water Level including rainfall in Antipolo, Montalban and other watersheds and Typhoon updates.
UPDATE: As of July 2015, the link above does not work anymore.
Project NOAH (Nationwide Operational Assessment of Hazards)

http://noah.dost.gov.ph/
Project NOAH is the Department of Science and Technology’s (DOST) response to the call of President Benigno S. Aquino III for a more accurate, integrated, and responsive disaster prevention and mitigation system, especially in high-risk areas throughout the Philippines.

Project NOAH is also available as a mobile application on the Android platform.

https://play.google.com/store/apps/details?id=ph.gov.dost.noah.android&hl=en

A High Rise Marikina River

Its no secret that when heavy rains pour over the Metro, Marikina River is usually part of the news updates on radio and TV. And since the Marikina River passes through several towns and cities, it is a concern to be alerted especially if you live near any stretch of the riverbanks.

And when Marikina River's level rises, the river doubles in width. All the bikelanes, walkways and roads on both sides of the River slowly get submerged.

It doesn't necessarily have to rain hard in Marikina City for the river to rise as the higher areas of Quezon City, the hills of San Mateo and Montalban mountains in Rodriguez, Rizal all contribute their rainfall to the Marikina River. What is usually a calm scenic route of a river becomes a raging river with waters speeding at faster rates.

As long as the rains aren't non-stop, the river goes back to its normal level in a day or two.

The Marikina River: a gentle river turning into a dangerous gush in stormy weather.