Kolkata: The India Meteorological Department (IMD) announced that a low pressure area, which has developed into a depression over the northwest Bay of Bengal, will cause heavy rainfall across districts in South Bengal until Saturday morning.
Extended overnight and morning rainfall caused waterlogging and traffic disruptions in parts of Kolkata and nearby Salt Lake area. The IMD indicated that the depression is expected to move west-northwestward across Gangetic West Bengal, near north Odisha, and Jharkhand.
A depression is a weather phenomenon characterized by cloudy, wet, and windy conditions, according to climate specialists.
The IMD forecasted widespread light to moderate rain, with some isolated places experiencing heavy to very heavy rainfall in South Bengal districts until Saturday morning. Certain districts, including Bankura, Jhargram, and Paschim Medinipur, could see extremely heavy rainfall during this period.
Additionally, one or two spots in districts such as Purulia, Purba Medinipur, South 24 Parganas, Hooghly, Howrah, and Paschim Bardhaman, which includes Kolkata, may also experience heavy to very heavy rain, the bulletin indicated.
Due to the sustained monsoon flow, light to moderate rainfall with isolated heavy showers is expected to continue over some districts of South Bengal for the next six days.
The sub-Himalayan districts—Darjeeling, Kalimpong, Jalpaiguri, and Alipurduar—are predicted to receive heavy rainfall until the morning of July 29.
The weather agency also advised fishermen to avoid venturing into the sea along and off the coasts of North and Central Bay of Bengal, as well as the West Bengal-Odisha coasts, until July 29.
In the past 24 hours, Salt Lake recorded the highest rainfall in West Bengal at 132 mm, while Alipore in Kolkata received 81 mm, and Dum Dum experienced 67 mm of rain during the same period, according to IMD data.