The Indian Meteorological Department (IMD) has issued red and orange alerts as heavy rain and thunderstorms lash Kolkata and surrounding districts [2].
These weather warnings signal a period of high risk for urban flooding and infrastructure damage. The intensity of the storms threatens daily commutes and public safety across West Bengal, particularly in densely populated areas.
According to the IMD, a trough line and cyclonic circulation over the Bay of Bengal have intensified monsoon activity [1, 2]. This atmospheric shift has prompted the agency to warn of heavy rainfall across the region until July 13 [1].
In some of the most affected districts, officials expect up to 100 mm of rain within a 24-hour period [2]. The severity of the weather has led to the highest levels of alert for several districts, including the city of Kolkata [2].
Beyond the urban center, the IMD has highlighted specific dangers for those in elevated terrain. An IMD spokesperson said, "The IMD has warned of heavy rainfall across West Bengal till July 13, with a high risk of landslides in hilly areas" [1].
The agency continues to monitor the Bay of Bengal to determine if the cyclonic circulation will persist or strengthen. An IMD press release said, "Red and orange alerts have been issued for Kolkata and several districts as storms lash the region" [2].
While the current window of heavy rain is forecast through July 13 [1], weather analysts suggest the intensity may shift in the coming week. Some forecasts indicate that by July 21, the region could see a transition to light or moderate rain accompanied by thunderstorms [3].
“Red and orange alerts have been issued for Kolkata and several districts as storms lash the region.”
The convergence of a trough line and cyclonic circulation creates a volatile weather pattern that exceeds typical monsoon precipitation. By issuing red and orange alerts, the IMD is signaling that the rainfall may reach levels that disrupt essential services and pose a life-threatening risk in landslide-prone hilly regions, necessitating immediate emergency preparedness by local governments.
