A depression over the southeast and adjoining southwest Bay of Bengal is likely to strengthen into a severe cyclonic storm by November 17, the meteorological department said on Sunday (November 15, 2026).

Cyclone Akvan is expected to cause rains in north coastal districts in Tamil Nadu, Puducherry and Karaikal area, it said. The department announced that the cycline is expected to move towards the Andhra Pradesh coast around November 19

Also Read: Low-pressure area likely to form over Bay of Bengal, ease rain deficit in Tamil Nadu

The Regional Meteorological Centre issued a Nowcast alert at 1 p.m. in Tamilnadu, valid till 4 p.m. for light to moderate rainfall at isolated places over Cuddalore, Chengalpattu, Mayiladuthurai, Nagappattinam, Pudukkottai, Thanjavur, Thiruvarur and Viluppuram districts and Karaikal and Puducherry.

According to the latest weather report, Saturday's (November 14) well-marked low-pressure area over the southeast Bay of Bengal moved northwestward, intensified into a depression and lay centred at 5:30 a.m. today. It is very likely to continue to move northwestward, intensify further into a cyclonic storm over the central parts of the south and adjoining west-central Bay of Bengal on November, 16 and into a severe cyclonic storm on November 17.

The data further added that in addition to northern Tamil Nadu districts, moderate rain at isolated places is likely to occur over western ghat and southern districts of the State from Monday (November 16).

According to the bulletin, during the last 24 hours ending at 8:30 a.m. on Sunday (November 15), rainfall occurred in several districts, including Chengalpattu, Chennai, Kancheepuram and Kanyakumari.