In the wake of heavy and incessant rainfall in Chennai and several parts of Tamil Nadu, a warning has been issued to multiple districts with a prediction that the current trend would continue for some days. As a low pressure area has been identified over the Southeast part of the Bay of Bengal, the India Meteorological Department (IMD) in a statement said that the low pressure area would move west and intensify into a depression over west - central Bay of Bengal on Wednesday - November 15. 

Owing to heavy rainfall, holidays were announced for schools in several districts and an orange warning has been issued for several districts including Chennai, Kancheepuram, Villupuram, Tiruvallur, Nagapattinam, Cuddalore, and Tiruvannamalai. The IMD further said, "Heavy to very heavy rainfall was observed over coastal and delta districts of Tamil Nadu, Puducherry, and Karaikal." 

The Tamil Nadu government has instructed 27 District Collectors to enforce the Standard Operating Procedures to handle disasters, beef up the district machinery and take adequate preparedness measures to tackle any untoward incidents. Chennai has been witnessing incessant rainfall on Tuesday - November 14 that has sparked a major disruption and waterloggings. 

The fishermen in the coastal districts have also been advised not to venture into the sea. On November 13, Tamil Nadu's Commissioner of Revenue Administration & State Relief, SK Prabakar sent instruction to the Collectors of 27 districts - Ramanathapuram, Pudukottai, Tiruvarur, Thanjavur, Nagapattinam, Mayiladuthurai, Cuddalore, Kanniyakumari, Tirunelveli, Thoothukudi, Sivaganga, Perambalur, Ariyalur, Villupuram, Chengalpattu, Kancheepuram, Tirupattur, Vellore, Ranipet, Tiruvallur, Tiruvannamalai, Kallakurichi, Trichy, Virudhunagar, Madurai, and Chennai. 

Speaking to the reporters at the state's emergency operations centre, Tamil Nadu Revenue and Disaster Management Minister KKSSR Ramachandran said, "The government sent alerts to 80,000 people living on the banks of the river Vaigai about water release. The government is hundred per cent ready to tackle monsoon rain." 

It has been reported that the state government has installed 121 multi-purpose relief centres and 4,967 relief centres, including schools, colleges, community halls, and marriage halls across the state to accommodate people from the low-lying areas. Thousands of NDRF members have also been deployed to several districts to take up precautionary measures and rescue operations. 

As per the IMD, Velankanni in Nagapattinam district had recorded the highest rainfall of 17 cm during the 24-hour period ending 8.30 am on Tuesday. It was followed by Nagapattinam and Karaikal with 15 cm and 14 cm respectively. It has also been reported that Tamil Nadu has received 233.3 mm of rainfall for the period between October 1 and November 14, with a 14% deficit for the period. 

Heavy rainfall has been predicted in Chennai, Tiruvallur, Kancheepuraam, Chengalpattu, Ranipet, Vellore, Tirupattur, and Tiruvannamalai districts on November 15. Heavy rains will also occur at the isolated places over Thoothukudi, Virudhunagar, Madurai, Dindigul, Sivaganga, Pudukottai, Thanjavur, Trichy, Perambalur, Ariyalur, and Cuddalore districts on November 15.