This is coming in at good intensity and size hopefully, it does not go bizzard due to erratic winds off Chennai boundary. The storms movement are alinged towards Chennai.
Enjoy the rains, this one is difficult to miss Chennai if nature . Rains will be accompained with heavy winds and also thunder. Areas of south of Chennai such as Tambaram etc will get the 1st spell then comes the city.
Courtesy - Tamil Nadu weatherman