The Regional Meteorological Centre (RMC) Kolkata predicted chances of rainfall on Wednesday and Thursday in South Bengal. The experts at RMC Kolkata also predicted that the rainfall could bring in chilly winds. The temperature would likely decrease on Wednesday night.Western Disturbance is the reason for this untimely rainfall, a RMC expert said.
“A Western Disturbance is an extra-tropical storm originating in the Mediterranean region that brings sudden winter rain to the north-western parts of the Indian subcontinent. It is a non-monsoonal precipitation pattern driven by the westerlies. This untimely rainfall in winter is likely to occur due to Western Disturbance,” said an expert.
Several South Bengal districts – Malda, Murshidabad, Burdwan and Purulia will receive medium rain.
Rains lashed parts of sub-Himalayan Bengal as the MeT department on Tuesday forecast more downpours in the region.
Cooch Behar received slight rainfall. Neighbouring Jalpaiguri district received 10.8 mm rainfall while the hill town of Darjeeling received slight rain.
The weather scientists of skymetweather.com predicted that Western Disturbance is over Jammu and Kashmir and will only bring isolated rain and snow over the higher reaches of the state.
“Now, a cyclonic circulation is over Rajasthan and Haryana, while another circulation is seen over Jharkhand and adjoining Bengal. Both the systems have changed the wind pattern over entire northern and Indo-Gangetic plains. With this, dense fog will continue to grip most parts of North and East India,” a skymetweather.com report reads.
Now this persistent fog cover will not let the maximum temperatures increase that may lead to cold day conditions over several parts of West Bengal.
Increased moisture can also result in rain and thundershowers over Bihar, Jharkhand and Bengal leading to further drop in day maximums.
Meanwhile, Central India will continue with dry and clear weather conditions on Sunday. Down south, light rain and thundershowers are likely over parts of Coastal Tamil Nadu including Chennai on Sunday on account of the trough extending along the equator and adjoining Southwest Bay of Bengal. This will also intensify rains over Andaman and Nicobar Islands with some heavy showers, Skymet weather experts predicted.