Developing cyclone in Bay of Bengal may bring heavy rain to Tamil Nadu, Andhra

The India Meteorological Department (IMD) has announced the development of an upper air cyclonic circulation over the Equatorial Indian Ocean, off the Sumatra coast, and the adjoining South Andaman Sea. This system, detected on Thursday morning, is expected to intensify into a low-pressure area over the southeast Bay of Bengal by November 23, potentially escalating into a depression and possibly a cyclone.
The system, which is likely to move west-northwestward, could significantly impact Tamil Nadu and Sri Lanka, bringing heavy rainfall and rough sea conditions. IMD has issued an orange alert for Tamil Nadu, Puducherry, and Karaikal on November 26, warning of “very heavy rainfall” measuring between 115.6 mm and 204.4 mm.
IMD’s bulletin highlights that if the depression intensifies into a cyclone, it will be named “Fengal”, proposed by Saudi Arabia. This would mark the second cyclone of the season after Cyclone Dana. Though the exact path remains uncertain, weather experts suggest a high probability of it crossing the Chennai coast.
The IMD has predicted light to moderate rainfall across Tamil Nadu, Puducherry, and Karaikal, with isolated thunderstorms and lightning on Thursday. By November 26, very heavy rainfall is expected, prompting preparatory measures in these regions.
In Andhra Pradesh, Stella S, director of IMD-Amaravati, forecasts moderate to heavy rainfall, with isolated very heavy rains likely to impact south coastal Andhra Pradesh and Rayalaseema from November 26 to 29. Farmers have been advised to harvest crops ready for collection by November 25 to avoid potential losses.
Meteorologists have warned of rough sea conditions due to the strengthening winds associated with the system. Fishermen and those engaged in maritime activities are advised to avoid venturing into the sea in the coming days.
IMD is closely monitoring the evolving system using advanced satellite imagery and weather modelling. The agency has assured timely updates and urged residents of coastal regions in Tamil Nadu, Andhra Pradesh, and Sri Lanka to stay alert.
While the exact impact of the system remains uncertain, authorities are emphasising the importance of preparedness to minimise potential disruptions.