“The low-pressure area now lies over north coastal Andhra Pradesh and west central Bay of Bengal. Strong southeasterly winds from Bay of Bengal are likely to prevail over Gangetic Bengal during October 17 to 19,” said a special weather bulletin issued by the Regional Meteorological Centre, Kolkata, on Saturday.
The low-pressure system was formed on Friday, as predicted earlier. The city and any many parts of south Bengal had witnessed sharp spells of thundershowers on Friday, too, when Puja committees were organising immersion. Now, with the system gaining strength, the Met office said the intensity and spread of rain will increase from Sunday.
“Thunderstorm with lightning and widespread light to moderate rainfall is very likely over the districts of south Bengal during October 17 to 19 and over North Bengal during October 18 to 20,” the bulletin said.
The Met office has issued a yellow warning for Kolkata on Sunday where heavy rainfall between 7cm to 11cm has been predicted along with Howrah, North 24 Parganas, Hooghly and West Mindapore. Rainfall activity is likely to intensify on Monday with an orange warning — heavy to very heavy rainfall between 7cm and 20cm — in Kolkata, North and South 24 Parganas, Howrah, Hooghly, West and East Midnapore.
According to the IMD prediction, heavy rain is expected over a few pockets of Kolkata, North and South 24 Parganas, Howrah and East Midnapore on Tuesday. Parts of North Bengal are likely to have rain from Monday to Wednesday.
Source: https://timesofindia.indiatimes.com/city/kolkata/heavy-rain-alert-for-kolkata-south-bengal-pockets/articleshow/87075752.cms