The Regional Meteorological Centre (RMC) has forecasted light to moderate rain with thunder and lightning across 22 districts in Tamil Nadu until 7 PM today.
Moderate rainfall is expected in Chennai, Kancheepuram, Chengalpattu, Tiruvallur, Ranipet, Vellore, Tirupattur, and Tiruvannamalai. Light to moderate showers, accompanied by occasional thunder, are likely in Perambalur, Ariyalur, Sivagangai, Ramanathapuram, Pudukkottai, Theni, Dindigul, Madurai, Virudhunagar, Kanniyakumari, Tirunelveli, Nilgiris, and Coimbatore.
The rainfall is attributed to an atmospheric trough over the interior regions of Tamil Nadu, affecting parts of North East and South East Tamil Nadu, Puducherry, and Karaikal, according to the weather department.