IMD warns of thunderstorms & heavy rainfall in South Bengal districts

A brewing low-pressure system over the north Bay of Bengal is set to bring heavy rainfall and thunderstorms to several districts of West Bengal, the India Meteorological Department (IMD) announced on Monday, September 1, 2025. This weather system is expected to trigger intense downpours, with coastal areas like South 24 Parganas potentially seeing very heavy rainfall of 7–20 cm, while Kolkata, Howrah, and other districts brace for significant showers over the next two days.

With thunderstorms and gusty winds of 30–40 kmph forecast, residents are urged to stay vigilant, and fishermen have been advised to avoid venturing into the sea until Wednesday, September 3, 2025. This alert underscores the need for preparedness as the region gears up for challenging weather conditions.The IMD has pinpointed South 24 Parganas as the area likely to face the brunt of the weather system, with very heavy rainfall expected until Tuesday morning.

Other districts, including North 24 Parganas, Kolkata, Howrah, Hooghly, and Purba and Paschim Medinipur, are forecast to experience heavy rain of 7–11 cm during the same period. The combination of thunderstorms, lightning, and strong winds adds to the urgency of the situation, as these conditions could disrupt daily life, affect transportation, and pose risks to infrastructure in low-lying areas.

The IMD’s timely warning aims to help residents and authorities prepare for potential impacts.As the low-pressure system evolves, the IMD predicts that heavy rainfall will continue to affect several districts into Wednesday, September 3, 2025. Areas such as Purba and Paschim Medinipur, South 24 Parganas, Jhargram, and Bankura are expected to see heavy showers of 7–11 cm at isolated locations.