High-level rainfall is forecast across several West Bengal districts through October 31 due to the impact of Cyclone Arnab.
Heavy downpours are anticipated in southern regions like Purba Medinipur and South 24 Parganas, as well as northern districts like Darjeeling.
Flights at Kolkata's NSCBI Airport experienced disruptions, and fishermen have been advised against venturing into the sea until Thursday.