Bay of Bengal Low Pressure Alert: Tamil Nadu May See Rain, Possible Cyclone After November 19

The India Meteorological Department (IMD) has forecast the formation of a low-pressure area over the Southeast Bay of Bengal on November 13, 2026. The system may strengthen into a depression and could potentially develop into a cyclone after November 19. Several districts of Tamil Nadu are likely to receive rainfall, while fishermen have been advised to avoid certain sea areas.

The weather system is expected to develop due to an atmospheric circulation prevailing over the South Andaman Sea and adjoining areas. According to the latest weather update, the low-pressure area is likely to move northwestwards after its formation.

It may intensify into a well-marked low-pressure area on November 14 and subsequently develop into a depression. The weather department has also indicated the possibility of the system strengthening into a cyclonic storm after November 19.

Tamil Nadu Rain Forecast for November 13 and 14

The developing low-pressure system is expected to influence weather conditions across parts of Tamil Nadu over the next few days.

Moderate rainfall is likely in the Western Ghats districts and northern coastal Tamil Nadu on November 13 and 14.

The rainfall forecast includes several districts, with weather conditions expected to vary depending on the movement and development of the system.

Rain Expected in Nellai and Kanyakumari on November 15 and 16

According to the weather forecast, the hill areas of Tirunelveli (Nellai) and Kanyakumari districts may receive moderate rainfall on November 15 and 16.

Light rainfall is also likely in the following districts and regions:

Nilgiris, Coimbatore, Theni, Dindigul, Tiruppur, Tenkasi, Virudhunagar, Kanyakumari, Tirunelveli, Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, Pudukkottai, Karaikal

Residents in these areas are advised to follow local weather updates, particularly as the low-pressure system moves across the Bay of Bengal.

Chennai Weather Today: Cloudy Skies and Light Rain

Chennai is expected to experience partly cloudy skies on November 13. Light rainfall may occur in a few parts of the city.

The weather department has also indicated that wind speeds may increase in the surrounding sea areas. Residents can expect changing weather conditions as the low-pressure system develops over the Bay of Bengal.

Fishermen Advised to Avoid Bay of Bengal Sea Areas

The weather department has issued an advisory for fishermen due to the possibility of strong winds over the sea.

Fishermen have been advised not to venture into the Andaman Sea and Southeast Bay of Bengal on November 13 and 14.

They have also been advised to avoid the Southeast Bay of Bengal on November 15 and 16.

Those already engaged in fishihing activities should follow the official weather advisories and safety instructions.

Possible Cyclone Development After November 19

The possible formation of a cyclone after November 19 is an important weather development to watch. However, the system`s future intensity and movement will depend on how it develops over the coming days.

The low-pressure area is expected to move northwestwards and gradually strengthen. The IMD`s subsequent updates will provide more clarity about its development and possible impact on Tamil Nadu and neighbouring coastal regions.

Residents, coastal communities and fishermen are advised to monitor official weather bulletins for the latest information.