The India Meteorological Department (IMD) on Sunday issued a heavy to very heavy rain warning for a few places, districts till Monday evening. The IMD has issued a red alert since there is a likelihood of over 20 cm of rainfall in several places.
S. Balachandran, Additional Director General of Meteorology, Regional Meteorological Centre (RMC), Chennai, told reporters that as of 8.30 a.m. on Sunday, the storm, moving at a speed of 8 kmph, lay centred at about 260 km east-northeast of Puducherry, 190 km east-southeast of Chennai, 310 km southeast of Nellore, 410 km south-southeast of Bapatla, and 430 km south-southeast of Machilipatnam.
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It is likely to continue moving north-westward, intensify, and reach west-central Bay of Bengal off the south Andhra Pradesh and adjoining north Tamil Nadu coasts by forenoon on Monday. Thereafter, it will move nearly northwards, almost parallel and close to and cross the South Andhra Pradesh coast, between Nellore and Machilipatnam during forenoon of Tuesday as a severe cyclonic storm, with a maximum sustained wind speed of 90-100 kmph, gusting up to 110 kmph.
On Monday, RMC has predicted light to moderate rain is likely at many places with thunderstorm and lightning at one or two places over north Tamil Nadu, Puducherry, and Karaikal areas and at few places over south Tamil Nadu. Heavy to very heavy rain is likely to occur at a few places, with extremely heavy rain at one or two places over Chennai, Kancheepuram, Chengalpattu, and Tiruvallur districts.
Heavy to very heavy rain is likely to occur at one or two places over Ranipet, Vellore, Tiruvannamalai, Villupuram districts. Heavy rain is likely to occur at one or two places over Cuddalore, Kallakurichi, and Tirupattur districts.
On Tuesday, light to moderate rain has been forecast at a few places over south Tamil Nadu, at one or two places with thunderstorm and lightning over North Tamil Nadu, Puducherry, and Karaikal areas. Heavy rain is likely to occur at isolated places over Ranipet and Tiruvallur districts.