Chennai: Southern parts and coastal regions of Tamilnadu are expected to get heavy rains in the next 24 hours, while Chennai and northern parts are likely to receive light to moderate downpour.
Met office in Chennai said trough in easterlies from Comorin area to north coastal Tamilnadu, which triggered heavy rains in Chennai and its neighbourhood, has moved westwards and merged with the trough in easterlies to southeast Arabian sea, thereby shifting the action to south and west Tamilnadu regions.
S Balachandran, Deputy Director General of Meteorology, Regional Meteorological Centre, said the trough is likely to move further westwards and under its influence, a low pressure area is likely to form over the southeast Arabian Sea around 19 November.
A bulletin issued by the RMC Chennai said most areas across south Tamilnadu will receive mild rains while north Tamilnadu, along with Puducherry and Karaikal, will receive mild to moderate rainfall for the next 48 hours.
Pudukottai, Nagapattinam, Sivaganga, Ramanathapuram, Tirunelveli, Thenkasi, Thoothukudi and Kanniyakumari districts are expected to receive heavy rainfall with thunderstorms.