“The Western Ghats districts – Nilgiris, Coimbatore, Theni, Dindigul, Tiruppur and Thenkasi, and coastal districts of Tamil Nadu including Thiruvallur, Chengalpattu, Nagapattinam, Thoothukudi, Villupuram, Ramanathapuram and Kanyakumari to experience moderate to heavy rain for the next two days due to southwest monsoon. Meanwhile, light to moderate rain to occur at isolated places of rest of Tamil Nadu, Puducherry, and Karaikal,” said N Puviarasan, Director, Area Cyclone Warning Centre, Regional Meteorological Center (RMC).