The Chennai Meteorological Department has predicted moderate rainfall in 31 districts of Tamil Nadu including Chennai, Tiruvallur, Kanchipuram, Chengalpattu, Cuddalore, Ranipet, Vellore, Tirupattur, Tiruvannamalai, Villupuram, Kallakurichi, Trichy, Perambalur, Ariyalur, Pudukkottai, Karur, Thanjavur, Tiruvarur, Mayiladuthurai, Nagapattinam, Salem, Namakkal, Erode, Nilgiris, Coimbatore, Theni, Dindigul, Krishnagiri, Dharmapuri, Tenkasi, and Tirunelveli as of 8 am today.
