Light to moderate rain is likely at isolated places over Tamil Nadu and Puducherry-Karaikal on December 1, with thunderstorms and lightning at a few places. Heavy rain is likely at isolated places in Tiruvallur district, according to the Regional Meteorological Centre bulletin.
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Cyclone Ditwah Weakens Near TN–Puducherry Coast
Cyclonic storm Ditwah moved slowly northward near the north Tamil Nadu–Puducherry coast on Sunday (November 30, 2025) and began to weaken. The Regional Meteorological Centre (RMC) reported that the system travelled at 5 kmph on Sunday morning over the southwest Bay of Bengal and the adjoining coastline, with its centre located about 80 km from shore.
The cyclone continued moving almost parallel to the coast and weakened into a deep depression by Sunday night. By midnight, it was expected to remain over the southwest Bay of Bengal at a minimum distance of around 30 km from the north Tamil Nadu–Puducherry coastline.
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Forecast for December 1
For Monday (December 1), light to moderate rain is likely at isolated places over Tamil Nadu and Puducherry–Karaikal, with thunderstorms and lightning at a few places. Heavy rain is likely at isolated places in Tiruvallur district, according to the RMC bulletin. Gale winds are likely to decrease gradually, becoming squally with speeds of 45–55 kmph, gusting up to 65 kmph, by the morning of Monday. Sea condition is very likely to improve gradually, becoming very rough to rough by the morning of Monday and improving further thereafter, the RMC said.
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