South Bengal is expected to receive light to moderate rainfall in most districts, with thunderstorms and gusty winds reaching speeds of 30 to 40 kmph in Purulia, Bankura, East Bardhaman, West Bardhaman, Birbhum, Murshidabad and Nadia.
Heavy rainfall has been forecast for North 24 Parganas, South 24 Parganas and Nadia on July 21. On July 22, heavy showers are likely in North and South 24 Parganas, East and West Midnapore, and Howrah. The rain belt may shift on July 23, affecting South 24 Parganas, East and West Midnapore, Jhargram and Bankura. Coastal districts may also experience thunderstorms with winds gusting between 40 and 50 kmph.