Light to moder Rain with thunderstorm Lightning is likely to occur at isolated places over Cpattu, Chennai, Dpuri, Dindigul, Erode, Kallakurichi, Kanche, Karur, Madurai, Namakkal, Ramanathapuram, Salem, Tenkasi, Theni, Thiruvallur, Trichy, Tirunelveli, Tiruppur, Tiruvanmalai, Virudhunagar in next 3 hours.