The IMD has identified a new cyclonic storm named Ditwah forming over the Bay of Bengal, expected to make landfall along Tamil Nadu–Puducherry–South Andhra Pradesh by November 30.
Several coastal districts — including Chennai, Nagapattinam, Thiruvallur and Thanjavur — are under yellow/orange alerts for heavy rain, strong winds and rough seas from November 27–29.
Ditwah comes on the heels of Cyclone Senyar, which had formed near the Strait of Malacca and recently crossed Sumatra. Experts warn that such back-to-back storms highlight unstable weather patterns in the region.