Heavy Rainfall Expected in Chennai and 11 Tamil Nadu Districts, IMD Issues Alert

Chennai and several districts in Tamil Nadu are bracing for a heavy downpour on Wednesday as the India Meteorological Department (IMD) has issued alerts across the region. Thunderstorms with lightning are also anticipated in Tamil Nadu, Puducherry, and Karaikal.

Key Points :

1. Regions Affected : Heavy rain is expected in Chennai, Chengalpattu, Tiruvallur, Kancheepuram, Ranipet, Kanyakumari, Tirunelveli, Thoothukudi, Tenkasi, Ramanathapuram, Virudhunagar, and Madurai.

2. School Closures : Schools were closed in Chennai on Tuesday, November 12, due to the weather alert. No confirmation has yet been given for closures on Wednesday, November 13.

3. Weather Update for Other Regions : The IMD has also issued alerts for Kerala, Mahe, South Interior Karnataka, Rayalaseema, coastal Andhra Pradesh, Yanam, Puducherry, and Karaikal, where heavy rains and thunderstorms are anticipated.

4. Chennai’s Weather Forecast : Moderate to heavy rainfall is expected across parts of Chennai, with occasional thunderstorms. Temperatures in the city are forecasted to be around 30°C for the high and between 24-25°C for the low.

5. Rainfall Accumulation : Several areas in Chennai, including Perungudi, Alandur, and Adyar, recorded significant rainfall between 8-10 cm on Tuesday, with the highest rainfall in Zone 14 Perungudi.

6. Cause of Current Weather : The heavy rains are linked to an upper air circulation over the southwest Bay of Bengal, which has developed into a low-pressure system. This system is affecting the region at various atmospheric levels, extending up to 4.5 km above sea level and tilting southwestward.