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By Dipaneeta Das: The Indian Meteorological Department (IMD) on Monday issued a heatwave warning in southern districts of Bengal, including Kolkata. The alert comes as temperatures are expected to shoot up due to the warm north-westerly winds as an indirect influence of cyclone Mocha.
Addressing a press meet on Monday, senior weather official Sourish Banerjee from IMD Kolkata specified that Bengal is awaiting another heatwave, expectedly from Wednesday. Southern districts of the state will record temperatures around 40-42 degrees Celcius between Tuesday to Thursday.
“People will have to reel under uncomfortable weather from Tuesday due to the indirect effect of Cyclone Mocha,” Banerjee said, adding that there is no chance of rain until Thursday.
According to sources, heatwave warnings have been issued for Birbhum East and West Burdwan, Bankura, Purulia and West Medinipur.
Further, central districts such as Malda and North and South Dinajpur will also experience scorching temperatures on Wednesday.
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“Heat wave likely over western districts including Bankura, Purulia, West Burdwan, Birbhum on Thursday,” sources in the IMD claimed.
Explaining the causes of the sudden spike in sweltering temperature despite the formation of a depression in the Bay of Bengal, the Regional Meteorological Center (RMC) Alipore said, “Water vapour is running into the Bay of Bengal due to Cyclone Mocha effect.”
Cyclone Mocha is a tropical storm forming in the southeast Bay of Bengal.
According to Deputy Director of IMD Kolkata Sanjib Banerjee, the cyclonic circulation now lies over the Southeast Bay of Bengal and the adjoining South Andaman Sea.
“Under its influence, a low-pressure area is likely to form on May 8 over the same area. On May 9, it will intensify into a deep depression over the same area that is the Southeast Bay of Bengal and the adjoining South Andaman Sea,” he added.
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He further said that the north-westerly winds have led to warming of the weather and a rapid decrease in water vapour content in the air, which is generally supposed to be 50 per cent at the lowest in May.
“Rapid decrease in water vapour has led to a loo-like condition in South Bengal,” Banerjee illustrated.
Meanwhile, the IMD has issued a warning for heavy rainfall in Andaman and Nicobar from May 8 to May 12, under the influence of a cyclonic circulation over the southeast Bay of Bengal that is likely to intensify into a cyclonic storm in the coming days.
(With inputs from Tapan Naskar)
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