Twin cyclones trigger rain, storm alert across Bengal from April 8-10

A twin cyclonic system forming over the Bay of Bengal and the Andaman Sea is set to impact weather conditions across West Bengal over the next few days. The Alipore regional weather office has issued alerts for heavy rainfall, thunderstorms, and strong winds across multiple districts of South and North Bengal between Monday and Wednesday. Coastal regions are expected to experience tidal surges, with the sea level projected to rise by up to one metre.

A cyclonic circulation has developed near the southeast Bay of Bengal and the adjoining Andaman Sea. This system is expected to intensify into a low-pressure area within the next 48 hours. It is likely to move gradually towards the central Bay of Bengal and then reach the northern Bay. In addition, a western disturbance is becoming active over the northwestern Himalayan region. A trough line is also extending from Bihar to Vidarbha through Jharkhand and Chhattisgarh, while another trough spans from Marathwada to Tamil Nadu, passing over Karnataka. These combined systems are influencing weather conditions in the eastern region.

From April 8 to 10, South Bengal districts, including Kolkata, are expected to receive moderate to heavy rainfall along with thunderstorms and wind speeds between 30 to 50 km/h. On April 8, Bankura, Birbhum, and West Bardhaman are likely to see more intense rainfall and thunderstorm activity. On April 9, similar conditions are expected in West Midnapore, East and West Bardhaman, Birbhum, Murshidabad, Bankura, Purulia, and Jhargram. On April 10, thunder and lightning with rainfall may affect South 24 Parganas and East Midnapore.

North Bengal districts are also expected to be affected by this system. On April 8 and 9, light to moderate rainfall accompanied by thunderstorms and strong winds between 30 to 50 km/h is likely across the region. The weather department has not predicted any significant change in temperatures until April 10, though a drop of 2 to 3°C is expected from April 11.

A high tide warning has been issued for the sea between Kakdwip and Lothian Island, where water levels could rise by up to one metre. According to the weather office, the tidal event may last for approximately 15 to 20 seconds on the night of April 8. Fishermen and residents in coastal areas have been advised to remain alert.