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Chennai: The Chennai Meteorological Centre has announced that there is a possibility of heavy rainfall in Tamil Nadu for the next seven days, starting today. An atmospheric circulation prevailing over the Gulf of Mannar and an atmospheric trough extending from North Interior Karnataka to the Gulf of Mannar are influencing the weather patterns.

TN rains: May 7 Forecast

On May 6 and May 7, light to moderate rain accompanied by thunder and lightning is likely to occur at a few places across Tamil Nadu, Puducherry, and Karaikal. Heavy rainfall, accompanied by thunder, lightning, and strong winds gusting at speeds of 40 to 50 km per hour, is likely to occur at isolated places in the districts of Nilgiris, Coimbatore, Erode, Tiruppur, Dindigul, Madurai, Theni, Tenkasi, Virudhunagar, Tirunelveli, and Kanyakumari.

May 8-11 Forecast

From May 8 to May 11, light to moderate rain with thunder and lightning is likely at a few places across Tamil Nadu, Puducherry, and Karaikal. Heavy rainfall with thunder, lightning, and strong winds (40-50 km/h) is likely at isolated places in the districts of Nilgiris, Coimbatore, Erode, Tiruppur, Dindigul, Madurai, Theni, Tenkasi, Virudhunagar, Tirunelveli, Kanyakumari, Sivaganga, Ramanathapuram, Thoothukudi, Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, and Pudukkottai, as well as in the Karaikal region.

May 12 Forecast

On May 12, light to moderate rain with thunder and lightning is likely at a few places across Tamil Nadu, Puducherry, and Karaikal. Heavy rain may occur at isolated places in the districts of Kanyakumari, Tirunelveli, Thoothukudi, Ramanathapuram, Sivaganga, Cuddalore, Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, and Pudukkottai, as well as in Puducherry and Karaikal.

Temperature Outlook

From May 6 to May 10, the maximum temperature in Tamil Nadu, Puducherry, and Karaikal is likely to decrease gradually by 2 to 3 degrees Celsius at a few places and remain close to normal levels.

Chennai weather forecast

For Chennai and its suburbs, the sky will generally remain cloudy, with light to moderate rain likely in some parts of the city during the evening or night hours. In South Tamil Nadu, there is a possibility of heavy rain at isolated places in Kanyakumari, Tirunelveli, and Tenkasi. In the Delta districts—Thanjavur, Tiruvarur, and Nagapattinam—rain may occur during the evening hours due to convective heat activity.

Relief from Scorching Heat

Due to the recent spells of rain, temperatures that had been hovering above 40°C for the past few weeks are now expected to drop by 2°C to 4°C below normal levels. The impact of scorching winds will diminish significantly in hot zone districts such as Vellore, Trichy, and Madurai. The cool atmosphere during the nights will offer urban residents a respite from the summer heat.