Due to the prevailing low-pressure zone over the Bay of Bengal, it has been raining heavily in most Tamil Nadu districts over the last few days. There has been very heavy rain, especially in the Delta Districts!
The Chennai Regional Meteorological Centre has informed us that there are prospects for medium rain in the next 4 days in Tamil Nadu, Puducherry and Karaikkal.
In this scenario, the Indian Meteorological Department (IMD) has informed that a new low-pressure zone is likely to form in the upper layers of the atmosphere over the Bay of Bengal. Further, IMD has informed us that there is a strong prospect for very heavy rains in the coastal areas of Tamil Nadu on 19th November.