Weather officials have issued a red alert warning for Tamil Nadu starting Sunday, October 25, 2026, with heavy rains expected to continue through Monday, October 26. Strong thunderstorms, lightning, and gusty winds reaching speeds of 40 to 50 km/h are forecast across multiple regions.
The heaviest rainfall on October 25 will strike central districts, including Pudukkottai, Thanjavur, Ariyalur, Perambalur, and Tiruchirappalli. These areas face risks of quick street flooding and localized waterlogging. On October 26, the intense rain band moves across southern and central belts, keeping districts like Sivaganga and Ramanathapuram on high orange alert.
Meanwhile, Chennai, Kanchipuram, Chengalpattu, and Tiruvallur remain under a yellow alert with frequent sharp spells of rain through October 25 and 26. Emergency teams and local control rooms are active across all affected districts to clear waterlogged roads and assist residents.