Chennai: Very heavy rain is likely today in 6 districts, including Tiruvallur, and heavy rain in 25 districts, including the delta districts, in Tamil Nadu.
In this regard, the Chennai Meteorological Department issued a press release: An atmospheric circulation persists over the Tamil Nadu region at an altitude of about 3.1 km to 4.5 km. Another atmospheric circulation persists over southern coastal Andhra Pradesh and adjoining areas at an altitude of about 1.5 km. A low-pressure trough extends from the atmospheric circulation over southern coastal Andhra Pradesh to the northwest Bay of Bengal region, at an altitude of about 1.5 km.
As a result, in Tamil Nadu today (Oct. 17), heavy to very heavy rain accompanied by thunder, lightning, and strong winds may occur at one or two places in the districts of Nilgiris, Coimbatore, Tiruvallur, Kanchipuram, Villupuram, and Ranipet. Heavy rain will also occur at one or two places in Chennai, Chengalpattu, Tirunelveli, Kanniyakumari, Theni, Dindigul, Madurai, Tiruppur, Vellore, Kallakurichi, Erode, Dharmapuri, Krishnagiri, Salem, Ramanathapuram, Trichy, Namakkal, Cuddalore, Karur, Perambalur, and Ariyalur, as well as in the Delta districts of Thanjavur, Tiruvarur, Nagapattinam, and Mayiladuthurai, and in Puducherry and Karaikal. Moderate rain may occur in most other parts of Tamil Nadu.
On the 18th, very heavy rain is likely in one or two places in the Nilgiris district, heavy rain in the districts of Coimbatore, Erode, Namakkal, Ranipet, Tiruvallur, and Tirupattur, and moderate rain in other areas. Similarly, there is a chance of widespread heavy rain on the 19th as well.
Today, the sky will remain cloudy in Chennai and suburban areas. Moderate rain accompanied by thunder and lightning is likely in some areas. At times, there may be heavy rain.