A depression formed over the southwest Bay of Bengal and adjoining areas has moved west-northwestwards and is likely to weaken, according to the Bangladesh Meteorological Department (BMD).
The depression has crossed northern Tamil Nadu and adjoining southern Andhra Pradesh coast between Pondicherry and Chennai in India, according to its bulletin.
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It is likely to move in a west-northwestwardly direction further, weaken gradually and become unimportant, the Met office said.
However, all fishing boats and trawlers in the deep seas have been advised to proceed with caution till the evening.