After a weak start on Wednesday, the northeast monsoon on Thursday brought intense thunderstorms over Chennai and its neighbourhood and triggered widespread heavy rainfall that continued well into the morning.
The northeast monsoon has arrived in Tamil Nadu as parts of the state received heavy rainfall, accompanied by thunderstorms on Thursday in the wee hours of morning. Parts of Chennai received heavy rainfall, leading to waterlogging in several areas.
According to the India Meteorological Department (IMD), Chennai and neighbouring districts of Tiruvallur, Kancheepuram and Chengalpattu will receive heavy rainfall over the next few hours. Private weather blogger Tamil Nadu Weatherman said that Chennai had received around 150 to 200 mm of rainfall.
The fresh spell was the heaviest one-day rain recorded by the city in October since 2014, according to reports.
Photos on social media showed residents in Pattalam, Mylapore and Egmore areas wading through the flooded streets with umbrellas in their hands.
Many weather stations in and around Chennai recorded heavy rainfall as thunderstorms pounded throughout Wednesday night and the early hours of Thursday.
S. Balachandran, Deputy Director of Meteorology, Chennai, said an upper air circulation over southwest Bay of Bengal off north Tamil Nadu coast had influenced intense thunderstorms accompanied by lightning. The moist northeasterly winds that penetrated the coastal areas too triggered rain. Such intense rain with loud thunder and lightning is possible during the monsoon