The IMD has issued an orange alert for East Midnapore, West Midnapore and Jhargram, where heavy to very heavy rainfall is expected. Several other districts, including Kolkata, Howrah, South 24 Parganas, Bankura and Purulia, remain under a yellow alert for heavy rain, thunderstorms, lightning and gusty winds.
Weather officials have also issued nowcast warnings for many districts, predicting light to moderate thunderstorms accompanied by lightning, moderate rainfall and wind speeds of up to 40 kmph over short durations.
Rainfall has already picked up across many parts of the state. Canning recorded the highest rainfall in South Bengal, while districts such as East Midnapore, West Midnapore and parts of North Bengal also reported significant showers, reflecting the growing impact of the weather system.