The forecast comes even as Chennai, Tiruvallur, Kanchipuram, and Chengalpattu districts reel under floods and inundation caused due to heavy rains that lashed the region on November 6 and 7. In simple words - from 10th noon to 11th evening - extreme vigil needed from Cuddalore to Chennai belt,” he wrote on Twitter. From 11th evening/night rains will reduce.
“The worst fellow event- heavy rains are expected to start at 10th noon/ night and continue non-stop till 11th noon. Likewise, Vedaranayam-Tiruvarur belt in the Delta region will also receive heavy rains, he said. Pradeep John, an independent weather blogger, said Chennai will experience heavy rains from Tuesday night which will intensify from Wednesday afternoon. The extremely heavy rainfall forecast prompted the government to announce holidays for schools and colleges in nine districts – Chennai, Tiruvallur, Kanchipuram, Chengalpattu, Cuddalore, Thanjavur, Tiruvarur, Nagapattinam, and Mayiladuthurai – on November 10 and 11. It is likely to move west–north-westwards and reach near north Tamil Nadu coast by the early morning of November 11,” the IMD said in its bulletin. It is very likely to concentrate into a Depression over Southwest & adjoining Southeast Bay of Bengal during the next 36 hours. “Under the influence of the cyclonic circulation over southeast Bay of Bengal and neighbourhood, a low-pressure area has formed over the same region. Independent weather bloggers said, “extreme vigil” was needed from Cuddalore to Chennai during the above mentioned two days. Read | What did you do after 2015? Madras HC asks civic body The low pressure in the Bay of Bengal is expected to bring widespread rains in northern Tamil Nadu and the Delta region over the next five days, the IMD said, adding that the extremely heavy rainfall will hit the Tamil Nadu coast on November 10 and 11. Nagapattinam in the Delta region and nearby Karaikal in Puducherry received 15.2 cm and 16.3 cm rainfall respectively in just 12 hours ending 5.30 pm on Tuesday.
The rains will return to Chennai and its neighbouring districts from Wednesday, the IMD said. While the intensity of the rains reduced further on Tuesday when compared to the rainfall received over the weekend, the Cauvery Delta region was pounded with heavy rains since Tuesday evening which could result in damage to crops.
Tamil Nadu is bracing up for another spell of extremely heavy rainfall, especially in Chennai, its neighbouring districts and the Cauvery Delta region, till Thursday due to a low pressure that has formed in the Bay of Bengal under the influence of cyclonic circulation.
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