Heavy rain battered Kolkata today, causing widespread water-logging and flooding across several parts of the city [1, 2].

The sudden intensification of monsoon activity threatens urban infrastructure and public safety, particularly in low-lying areas prone to flash floods.

The India Meteorological Department (IMD) said the weather event was due to a low-pressure system over the Bay of Bengal [2]. This system increased monsoon activity, leading to the heavy precipitation that inundated the city [2]. Reports indicated significant water-logging in the Science City area, where floodwaters disrupted normal operations [1, 3].

To manage the risk, the IMD placed North Bengal under an orange alert [1]. South Bengal, which includes the city of Kolkata, was placed under a yellow alert [1]. These designations serve to warn residents and local authorities of the potential for severe weather disruptions, and flood risks across all districts [1].

In addition to the rainfall, the city braced for thunderstorms. Forecasts indicated that thunderstorm winds were expected to reach 40 to 50 km/h in Kolkata [3]. The combination of high wind speeds and heavy rain created hazardous conditions for commuters and pedestrians throughout the day.

Local residents experienced the brunt of the storm as water accumulated quickly on city streets. The IMD said it continued to monitor the low-pressure area as it intensified, warning that humid conditions would persist in the south while North Bengal faced higher risks [4].

“Heavy rain battered Kolkata, causing water-logging and flooding in parts of the city.”

The recurrence of severe water-logging in Kolkata during monsoon cycles highlights the ongoing struggle of the city's drainage infrastructure to handle intensified weather patterns. The use of color-coded alerts by the IMD reflects a standardized effort to mitigate disaster risks, but the rapid flooding of landmarks like Science City suggests that urban runoff remains a critical vulnerability during low-pressure events in the Bay of Bengal.