Monday morning Chennaites woke to surprise because these was Heavy overnight rains accompanied by thunder and lightning brought in some pleasant weather.
After a week of stifling heat, Chennai had its first taste of the southwest monsoon with several places recording more than four cm of rainfall till 8.30 a.m. on Monday. While Kancheepuram received 7 cm, Kelambakkam, Kolapakkam and Chembarambakkam recorded 6 cm . Meenambakkam and Nungambakkam registered 5 cm and 4 cm of rains respectively. Tambaram recorded 3.2 cm rainfall.
According to the Meteorological department, the sudden showers were due to a low pressure area formed over the Arabian Sea. The advancing monsoon current over the Bay of Bengal with a circulation embedded in it triggered rains over northern parts of Tamil Nadu.
Y.E.A. Raj, former deputy director general of meteorology, said such persistent clouding is not common during June. However, such weather will not last for more than two days.