The deep depression brewing over Southwest Bay of Bengal has moved north-northwestwards in the past few hours and is likely to develop into a cyclonic storm, causing rainfall over the districts of coastal Andhra Pradesh and Tamil Nadu,

A deep depression in the Southwest Bay of Bengal is moving north-northwestwards, expected to evolve into a cyclonic storm. This development will bring significant rainfall to coastal Andhra Pradesh and Tamil Nadu.

The deep depression would move nearly north-northwestwards, skirting Sri Lanka coast and intensify into a cyclonic storm during the next 12 hours, the RMC said in its latest bulletin

Tamil Nadu and Puducherry are preparing for very heavy rainfall, while the National Disaster Response Force (NDRF) is conducting risk assessments and safety checks in vulnerable areas like T R Patinam,

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.