MANILA, Philipines – The first alarm level has been raised over the Marikina river after its water level reached the 15-meter mark on Tuesday afternoon due to intermittent rains.
The city's public information office, in its Twitter account, said the river's water level was at 15.5 meters above sea level as of 3:28 p.m.
Under the first alarm, residents are warned and advised to monitor the situation.
Second and third alarms, meanwhile, are raised when the river's water level reaches 16 and 17 meters, respectively.
Under the second alarm, people are advised to prepare for evacuation. The third alarm means residents must evacuate on their own.
The fourth alarm, the critical level, is raised when the water breaches the 18-meter mark. Forced evacuation is enforced at this point.