The Regional Meteorological Centre predicts heavy rain, thunderstorms, and lightning in 22 districts of Tamil Nadu due to a cyclonic circulation over south Kerala and adjoining Tamil Nadu regions. This weather system is expected to impact rainfall in Tamil Nadu and Puducherry for the next week. Widespread rainfall is anticipated across various parts of the state, with heavy showers likely in western, central, and southern districts.
The upcoming weather conditions are a result of strengthening monsoon activity over the southern peninsula and favorable atmospheric conditions for thunderstorm development. The districts expected to experience heavy rainfall include Nilgiris, Coimbatore, Tiruppur, Dindigul, Theni, Karur, Namakkal, Erode, Salem, Tiruchirappalli, Dharmapuri, Krishnagiri, Tirupattur, Vellore, Ranipet, Tiruvannamalai, Madurai, Virudhunagar, Tenkasi, Tirunelveli, Thoothukudi, and Kanniyakumari.
Meteorologists warn that the heavy rain may be accompanied by lightning and gusty winds at isolated locations, urging residents to be cautious during thunderstorm activity. The weather department also forecasts continued heavy rainfall in parts of western and southern Tamil Nadu over the next two days.
On Tuesday and Wednesday, districts like Nilgiris, Coimbatore, Theni, Tiruppur, Tenkasi, Dindigul, Tirunelveli, Kanniyakumari, Erode, Namakkal, and Salem are expected to receive heavy rain. Similar weather conditions are likely in Dharmapuri, Krishnagiri, Tirupattur, Vellore, Ranipet, and Tiruvannamalai districts.
Authorities highlight that the cyclonic circulation over south Kerala and adjoining Tamil Nadu is drawing moisture from the Arabian Sea and surrounding regions, leading to increased cloud formation and widespread rainfall. This system is anticipated to maintain favorable weather conditions for rain across many districts throughout the week.
For Chennai, the forecast suggests generally cloudy skies with hot and humid weather prevailing, expecting a maximum temperature of around 40 degrees Celsius. While major rainfall is not predicted for the state capital, isolated light showers may occur in some areas of the city and its suburbs. People in low-lying and hilly areas are advised to stay vigilant, monitor official weather updates, and take necessary precautions as heavy rain, thunderstorms, and lightning are expected in several districts in the upcoming days.
