Twin cyclonic circulations trigger rain in Kolkata – Times of India

KOLKATA: The city woke up to a cloudy sky and a steady drizzle which often turned into spells of moderate rain, under the impact of twin cyclonic circulations — one over the Bay of Bengal and another in south Bangladesh. Several areas of Kolkata received showers that led to waterlogging even as the Met office predicted more consistent, ‘moderate’ rain in the city on Sunday. While Kolkata received 20 mm rain till 5.30 pm on Saturday, Dum Dum recorded 12 mm and Salt Lake 52mm.
The city is set to receive around 50 mm-60 mm rain between Saturday and Sunday, said the Met office.

While a cyclonic circulation over northwest and adjoining west-central Bay of Bengal has been triggering rain since Friday, another has formed over south Bangladesh on Saturday that has been generating rain-bearing clouds which floated into Gangetic Bengal on Saturday. While the former extends between 1.5 km to 5.8 km above sea-level, the latter exists at a height of 900 metres. The circulation over the Bay, however, is titling towards Odisha and is likely to move towards the coast of the neighbouring state on Saturday evening.
The circulation in Bangladesh, though, will continue to provide clouds that may cause rain in Gangetic Bengal. “We expect light to moderate rain in Kolkata and its neighbouring districts on Sunday. But they may include one heavy spell either late on Saturday or early Sunday,” said Regional Meteorological Centre (RMC) director GK Das.
Some city areas on Saturday witnessed sporadic rains which led to waterlogging in some parts. Going by rainfall as recorded by the KMC drainage pumping stations, some north Kolkata areas such as Ultadanga, Beliaghata, Belgachhia, Thanthania received more rainfall than south Kolkata areas like Jodhpur Park, Kalighat, Mominpore, Behala or Tollygunge. Water receded from most parts of north Kolkata except a few pockets by afternoon. Waterlogging was negligible in most south Kolkata.
Some areas of Salt Lake and New Town were under water following the heavy rains that splashed the city for about an hour, but the water receded from most of the places within a few hours as rains stopped. Both the New Town Kolkata Development Authority (NKDA) and the Bidhannagar Municipal Corporation (BMC) authorities operated all its pumps to flush out the excess water as quickly as possible.
While parts of Kolkata, Howrah, Hoogly, East Midnapore, North and South 24 Parganas received heavy downpour on Saturday, another heavy rain alert has been issued for all south Bengal districts on Sunday.
A weather bulletin issued by the RMC on Saturday said the possible impact of the rain could be a rise in water level of rivers, waterlogging in low-lying areas and damage to crops.
Lightning death
A Class-XI student died after being struck by lightning while flying kite on the roof of his apartment at Belur. The boy was identified as Jit Hazra (16), a resident of Lalababu Sayar Road. Jit along with his cousin brothers Suman and Riddhi had gone to the roof to fly kite on the occasion of Vishwakarma Puja.