2018 was the year when the Great Flood engulfed Kerala as a whole. Floods were the result of high rainfall during the southwest monsoon months of July and August. Heavy rain has caused flooding in most districts and sporadic bursts in hilly areas. As the water levels in the dams have risen steadily, their shutters have been opened to increase the impact of flooding. For the first time, 35 of the 54 barriers had to be opened. After a gap of 26 years, the shutters of the Cheruthoni Dam were opened together. The Chief Minister told the Assembly that 483 people were killed in heavy rains and floods. Fourteen people were reported missing. On August 21, a total of 14,50,707 people from 3,91,494 lakh families were forced to live in relief camps. Extreme vigilance has been issued in 14 districts of Kerala. According to preliminary estimates, Kerala has suffered a loss of about Rs 40,000 crore.
The tragedy was the result of heavy rains. The Central Water Commission had earlier dismissed allegations that the flooding caused the opening of the dams' shutters. Only a fraction of what was dumped into the barriers was released. The Central Water Commission has found that a portion of the water in the Dam has been retained, and this has helped to reduce the risk of floods. Lack of coordination of interstate dams, numerous cloud eruptions, and atmospheric damping are just a few of the causes of the wave. 41 rivers and 54 reservoirs have been unable to contain the rainwater that has never stopped. According to meteorologists, the tropical cyclone Shanshan and Yagi were also affected by heavy rainfall in Kerala. It is also alleged that the shutters of the Periyar and Kochi towns were submerged entirely due to delays in curtains despite rising water levels in Idukki. The impact of the floods was another result of Kerala not being aware of the shutters in the Upper Sholayar and Parambikkulam dams controlled by Tamil Nadu. The Tamil Nadu information was released just hours before the Dam was opened. Banasura Sagar Dam is made of mud. Therefore, it is not possible to keep the water level at the maximum water level. The Dam was opened on July 15, 2018, due to rising water levels. The seven panchayats in Wayanad were the worst affected when houses were flooded when homes were flooded.
According to the Kerala State Disaster Response Authority (CAA) data released by the Kerala State Disaster Response Authority (DMC) on Thursday, the government issued 85,300 liters of water per second from the Kakki-Anadodu dam at 47 pm and 47,000 liters of water per second. By nightfall, the shutters of both dams have been increased. From 10.00 pm onwards, 4.68 lakh liters of water flowed out every second. It rose to six lakhs per night and 9.39 lakh liters per second in the morning. As the dams were opened, the Aranmula, Shedharanmula, Ranni, and surrounding areas had been underwater for days. Thiruvalla Pulikkizam, the confluence of Pampa and Manimala, and Vaiyapuram, the convergence of Pampa and Achenkovil, were submerged. Traffic was disrupted in Kadavana to Manipuzha on Thiruvalla - Kayankulam road.
As Achencoil River was flooded, the city of Pandalam was completely flooded. MC for days Road traffic was stalled. Many people were trapped in houses around Aranmula and others. Many were rescued by helicopter. One hundred six relief camps were opened in the district. Of the 2,331 families, 8,788 were relocated. Of the four lakhs in Chengannur, 160,000 people were affected by the flood. The Sabarimala pilgrimage was ultimately canceled as the Pampa River was swept away. The Pampayar traversed the path where the Ayyappans were walking from Triveni to Sannidhanam. Sabarimala Pampathiram and Triveni Sangam were completely submerged. Many people were saved by the floods in Pathanamthitta and Ernakulam districts. Ninety-four fishing boats were brought to Pathanamthitta for rescue operations from Kollam and Thiruvananthapuram districts. From fishing boats to small boats used for fishing, they were on day and night rescue operations during the three days of flooding. A scene from Malappuram Vengara attracted the attention of the national media. The star of the video is Jaisal, a fisherman from Tanur who used to tilt her back to the boat, including crocodile-old women. During the rescue, the woman who was unable to get to the ship, gave her a crush on her back.
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