Kolkata Faces Fresh Rain Risk as Low Pressure Moves
Kolkata is set for another spell of intense monsoon weather as a well-marked low-pressure system over the northwest Bay of Bengal moves towards Gangetic West Bengal. The India Meteorological Department has forecast heavy to very heavy rainfall in parts of the region, with Kolkata among the areas facing heavy rain. The immediate concern is not only rainfall but its impact on drainage, mobility, low-lying neighbourhoods and everyday urban activity.
The weather system has developed over the northwest Bay of Bengal and adjoining West Bengal–north Odisha coast. According to the IMD, it is expected to move west-northwestwards across North Odisha and Gangetic West Bengal, maintaining a period of unsettled weather over southern Bengal.For Kolkata, the forecast is significant because intense rainfall can quickly expose weaknesses in the city’s drainage network. Low-lying pockets are particularly vulnerable to temporary waterlogging when rainfall arrives faster than local drainage systems can clear accumulated water. The disruption can spread beyond residential areas, affecting roads, public transport, commercial activity and access to essential services.The wider metropolitan region faces a similar risk. Howrah, South 24 Parganas and other adjoining districts are also expected to receive heavy rainfall, meaning disruption may extend across the interconnected urban economy rather than remain confined to Kolkata’s municipal boundaries.
The IMD has also highlighted strong winds over southern Bengal, with higher speeds expected along coastal areas. Fishermen have been advised not to venture into the sea during the period of adverse marine conditions. This adds a livelihood dimension to the weather warning, particularly for coastal communities whose incomes depend on safe access to fishing grounds.Recent rainfall patterns underline the pressure such events can place on urban infrastructure. Kolkata has experienced repeated episodes of intense monsoon rain this season, with earlier warnings also identifying waterlogging, lightning and risks to vulnerable structures.For the city, the immediate priority is therefore less about rainfall totals alone and more about how quickly streets, drains and public services recover after intense spells. Better storm-water management, protection of vulnerable neighbourhoods and reliable public information remain central to reducing disruption as extreme rainfall becomes a recurring urban challenge.
The latest system is expected to weaken as it moves inland, but the episode again highlights the need for Kolkata’s infrastructure to cope with short, intense bursts of rainfall without disproportionate consequences for citizens and the local economy.
