Tamil Nadu Braces for Heavy Rainfall as Southwest Monsoon Sets In

Strategic Insights -

Tamil Nadu, a southern state in India, is facing the onset of the southwest monsoon, which is expected to bring heavy rainfall across several districts. The Regional Meteorological Department has issued an orange alert in 10 districts, predicting heavy rainfall, while the India Meteorological Department (IMD) has issued yellow alerts in 6 districts. The rainfall is attributed to a cyclonic circulation over the Southeast Bay of Bengal and the adjoining South Andaman Sea.

Key Takeaways:

  • Tamil Nadu is experiencing heavy rainfall due to the early onset of the southwest monsoon and the formation of an east-west shear zone, which triggers low-pressure systems.
  • The Regional Meteorological Department has issued an orange alert in 10 districts, including Kanniyakumari, Tirunelveli, Tenkasi, Virudhunagar, Coimbatore, Theni, Madurai, Dindigul, Erode, and Nilgiris, predicting heavy rainfall.
  • The India Meteorological Department (IMD) has issued yellow alerts in 6 districts, including Chennai, Thoothukudi, Cuddalore, Ariyalur, Tiruchirapalli, and Karur, predicting moderate rainfall.
  • The temperatures in Tamil Nadu are likely to fall by 2-3 degrees Celsius due to the rainfall.
  • The rainfall is attributed to a cyclonic circulation over the Southeast Bay of Bengal and the adjoining South Andaman Sea.
  • The IMD has predicted that the minimum and maximum temperatures in Tamil Nadu will likely be around 29 degrees Celsius and 35 degrees Celsius, respectively, on May 27, 2025.
  • The skies are expected to be cloudy on May 27, 2025, with a humidity of around 62 per cent.

Statistics:

  • 10 districts in Tamil Nadu have been issued with an orange alert by the Regional Meteorological Department (RMD) - Kanniyakumari, Tirunelveli, Tenkasi, Virudhunagar, Coimbatore, Theni, Madurai, Dindigul, Erode, and Nilgiris.
  • 6 districts in Tamil Nadu have been issued with a yellow alert by the India Meteorological Department (IMD) - Chennai, Thoothukudi, Cuddalore, Ariyalur, Tiruchirapalli, and Karur.
  • The temperatures in Tamil Nadu are expected to fall by 2-3 degrees Celsius due to the rainfall.
  • The humidity in Tamil Nadu is expected to be around 67 per cent, with a wind blowing steadily from the Southwest at 21 km/h.

Sources:

  • The Regional Meteorological Department (RMD)
  • The India Meteorological Department (IMD)
  • Indian National Press (Bombay) Pvt. Ltd.
  • Contify.com