CHENNAI: The Regional Meteorological Centre (RMC) forecasts moderate rain, thunderstorms, and lightning in isolated pockets over Chennai, Tiruvallur, Chengalpattu, Villupuram, Cuddalore, Thanjavur, Tiruvarur, and Karaikal on Wednesday (October 14). Chennai will experience generally cloudy skies with maximum and minimum temperatures hovering around 36 degrees Celsius and 27 degrees Celsius, respectively. According to the weather department, the rainfall across TN is driven by a twin weather system featuring an upper-air cyclonic circulation over the southwest Bay of Bengal off south Sri Lanka...