Three shutters of the Mullaperiyar Dam were opened at 1 pm on Friday due to heavy rainfall in the region over the last several days.
Around 534 cubic feet of water will be released through these three shutters. This will be doubled after the first two hours.
Water released from the dam reaches the first residential area of Vallakkadavu through the Periyar within 20 minutes. The water flows through Manjumala, Vandiperiyar, Mlamala, Shanthippalam, Chappath, Aalady, Upputhara and Ayyappankovil to join Idukki reservoir.
Kerala-Karnataka-Lakshadweep coasts are likely to witness strong winds of 45-55 kmph on Friday.