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Moisture cloud on chill

The falling mercury may touch the season’s lowest as of now on Saturday but the cold spell is unlikely to last till New Year’e Eve.

Friday’s minimum temperature dropped to 13.1 degrees — a notch below normal — from Thursday’s 13.3.

Met officials said the strong flow of the northerly winds might further drag down the mercury to 12 degrees on Saturday, which would be the season’s lowest till now.

“Saturday is expected to record the season’s lowest temperature so far but from Sunday the mercury will start rising. The comparatively warmer spell will continue at least till New Year’s Eve,” said Gokul Chandra Debnath, director, India Meteorological Department, Calcutta.

The projected rise in the Celsius has been attributed to a high-pressure belt over Madhya Pradesh and Uttar Pradesh, which is expected to block the North Wind and the cause the city’s minimum temperature to vary between 14 and 15 degrees.

“The normal minimum temperature for this time of the year is 14. We expect the minimum to be one or two degrees above normal on Tuesday. It will be clear by Sunday how the high-pressure system evolves,” Debnath said.

Satellite pictures have started showing clouds over central India because of the belt. According to weather scientists, the relative humidity is likely to be on the higher side in those parts for the next few days and the extra moisture would come in the way of the northerly winds.

From last Saturday to Tuesday, the city’s minimum temperature varied between 18 and 19 degrees because of a high-pressure belt on the eastern coast.