The system that lay centred around 1,070km east-southeast of Chennai on Tuesday evening is likely to bring light to moderate rain over Chennai and other northern coastal areas of Tamil Nadu and Puducherry on Wednesday.

CHENNAI: A depression formed over the southwest Bay of Bengal gained strength on Wednesday morning to become a cyclone – called Nada – and it was situated 730km east-southeast off Puducherry coast.“The cyclone is likely to cross the Tamil Nadu coast – between Vedaranyam and Puducherry (mostly in Cuddalore) -- by December 2 morning. Chennai and coastal districts of Tamil Nadu will receive rain from Thursday morning,” Chennai IMD area cyclone warning director S Balachandran told TOI.The rainfall will intensify first in coastal districts of Tamil Nadu and Puducherry. Later interior districts will get rain.Fishermen have been advised not to venture into the sea.The cyclone is named Nada by Oman as per the cyclone naming convention followed by the South Asian countries.