The Met department has warned of a well-marked low pressure in the Bay of Bengal likely to concentrate into a Depression during next 24-36 hours.

Warning fishermen not to venture out to the sea in the South and Central areas of Bay of Bengal, the Regional Meteorological Department said that the depression is very likely to move northwestwards towards Odisha coast during next 72 hours.

RMD Deputy Director General S Balachandran said that the low pressure has formed North of the Andaman (and Nicobar Islands) and South east of the Bay of Bengal.

“This is expected to further intensify into a depression and move towards the Odisha coast in the next 72 hours,” he told reporters on Sunday.

The low pressure will bring rain in most parts of Tamil Nadu, which has already received moderate rainfall in the last 24 hours till Sunday morning.

The state and neighbouring coastal regions on the east will receive moderate to heavy rainfall for the next 24 hours.

“Fishermen have been advised not to venture into the South and Central Arabian Sea till October 12,” Balachandran said.

The RMD deputy director general said that prevailing climatic conditions favour the onset of the northeast monsoon in the state.

He added that the deep depression in the South Arabian Sea presently lay 920 km North West of Minicoy Islands of Lakshadweep and was expected to intensify into a cyclone in the next 24 hours and move towards Oman.