In its bulletin on Wednesday the Chennai Meteorological Office said cyclone Nada will cross the north Tamil Nadu coast between Vedaranniyam and Puducherry, close to Cuddalore, by December 2.
Cuddalore is around 185 kilometres from here.
According to the weather office, Nada is about 710 km southeast of Chennai, 670 km east-southeast of Puducherry.
The system is very likely to move west-northwestward, intensify further and cross the north Tamil Nadu coast.
According to the weather office, light to moderate rainfall is likely to commence over coastal Tamil Nadu from Wednesday evening.
Meanwhile, Lt. General N. C. Marwah, Member, NDMA (National Disaster Management Authority), reviewed the preparedness of the state government to withstand the impact of the northeast monsoon, a state government release said.