The severe cyclonic storm Thane lays centred in East Southeast of Bay of Bengal, 350 kilometres off Chennai coast.Cyclonic Warning Centre in Vishakhapatnam said that the storm is moving in west ward direction.It is likely to cross the coast tomorrow morning between Nagapatinam and Chennai near Pondicherry.Under its influence, rain or thunder showers are likely to occur in south coastal Andhra Pradesh and North Tamil Nadu during the next 24 hours. Heavy rainfall is likely to occur at one or two places during the same period.Fishermen have been advised not to venture into the sea. Winds at a speed of 45 to 55 kilometres per hour are likely to occur off the coast. Winds at a speed of 90 to 110 kilometers per hour are likely to occur at the time of the severe cyclone crossing the coast