Storm is predicted to cross the northern Tamil Nadu-Puducherry coasts, between Karaikal and Mahabalipuram, on the morning of 30.

A deep depression in the Bay of Bengal may intensify into a cyclone, causing heavy rain in Tamil Nadu and nearby areas.

Earlier, the IMD said that the deep depression over Southwest Bay of Bengal moved slowly north-northwestwards with a speed of 3 kmph during the past few hours.

The India Meteorological Department (IMD) issued a warning that a deep depression over the Bay of Bengal is likely to intensify into Cyclone Fengal by 27 November. The depression, located 770 km south-southeast of Chennai,

Schools in Tiruchirappalli, Nagapattinam, Mayiladuthurai, and Tiruvarur are closed in anticipation of heavy rains.

Chennai and surrounding regions have been experiencing continuous rainfall since Tuesday, with authorities declaring a yellow alert as Cyclone Fengal intensifies.

Heavy to very heavy rain is likely to occur at isolated places in Chennai, Tiruvallur, Kancheepuram, Chengalpattu, Villupuram, Ariyalur, Thanjavur, Tiruvarur, Nagapattinam and Pudukkottai districts.