Chennai witnessed heavy rains on Monday as Diwali celebrations began, affecting several parts of the city and suburbs, including Velachery, Medavakkam, Pallikaranai, and ECR Neelankarai. Many areas reported waterlogging, disrupting traffic and daily life. Residents were advised to exercise caution while commuting.
According to the India Meteorological Department (IMD), light to moderate rainfall accompanied by thunderstorms and lightning is likely at isolated places across several districts. Coastal Tamil Nadu is expected to continue receiving rainfall through October 22. Rainfall in the range of 64.5 mm to 111.5 mm is predicted across districts including Erode, Nilgiris, Coimbatore, Tiruppur, Dindigul, Theni, Madurai, Virudhunagar, Ramanathapuram, Sivaganga, Pudukkottai, Thanjavur, Tiruvarur, Karaikal, Mayiladuthurai, Villupuram, Kancheepuram, Chengalpattu, Cuddalore, and Nagapattinam.
The IMD has also forecast the formation of a low-pressure area over the southeast Bay of Bengal, which could intensify into a depression in the coming days. Meanwhile, Thoothukudi continues to face severe waterlogging after four consecutive days of rain, affecting normal life.
Tamil Nadu Chief Minister MK Stalin reviewed the situation through a video conference with district collectors, instructing officials to relocate residents from coastal and low-lying areas to safer locations.

