A low-pressure area over the southeast Bay of Bengal is likely to intensify into a cyclonic storm in the coming days, with the developing weather system expected to bring rain to parts of Tamil Nadu and Puducherry, according to the weather department.

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Fishermen have been advised not to venture into several parts of the Bay of Bengal until November 17 as the system is expected to strengthen and move towards the central Bay.

The low-pressure area formed on Friday under the influence of an upper-air cyclonic circulation over the central Andaman Sea and the Andaman and Nicobar Islands. It is likely to move northwestwards initially and intensify over the weekend before tracking north-northwestwards towards the central Bay of Bengal.

Favourable atmospheric conditions over the region could support its further development into a cyclonic storm. A trough associated with the circulation also extends towards the northern Maldives through the adjoining equatorial Indian Ocean.

Tamil Nadu rain forecast for the next few days

The developing system is expected to influence rainfall across Tamil Nadu over the next few days.

On Saturday, isolated rain is likely in the Western Ghats districts of Nilgiris, Coimbatore, Theni, Dindigul, Tiruppur and Tenkasi. Virudhunagar, Kanniyakumari and Tirunelveli districts may also receive rain at one or two places.

Northern coastal Tamil Nadu and Puducherry are likely to experience isolated showers during the day.

Light to moderate rain is forecast at isolated places across the Western Ghats districts, southern Tamil Nadu and northern coastal Tamil Nadu on Sunday and Monday.

In Chennai, the sky is expected to remain partly cloudy on Saturday, with light rain possible in some areas. Further showers are also possible in parts of northern Tamil Nadu as the weather system strengthens and moves across the Bay of Bengal.

With IANS inputs