Nagpur: Wind discontinuity in the region has led to cloud cover and an unreasonably warm December this year, the met department has said.
On Saturday and Sunday, the sky turned cloudy and some parts of the city also experienced slight rainfall, which may continue for two more days. According to officials of the Regional Meteorological Centre (RMC), Nagpur, the wind discontinuity at the lower level is causing these weather changes.
Wind discontinuity refers to formation of trough — an elongated region of relatively low atmospheric pressure — at the lower levels. “While the trough may be caused due to large-scale systems, at present a cyclonic circulation is present over the Arabian Sea and the trough is running from South West Madhya Pradesh. This phenomenon has caused the weather to turn cloudy and led to increase in the mercury levels,” an official said.
Interestingly while the maximum temperatures have been on the decline, the minimum temperatures are witnessing a rise. “This is the reason why this December is comparatively warmer,” the official added.
Data provided by the met department shows that the minimum temperatures have significantly increased in the last few days. From 14 degree Celsius on December 8, the minimum temperature reached 15.8 degree Celsius on December 10, and then went up to 18.8 degree Celsius on December 12.
The month’s highest minimum temperature till date was recorded on December 13 at 19.5 degree Celsius.
In the month of December in last two years, the minimum temperature has never been this high. Last year’s highest minimum temperature was 18 degree Celsius recorded on December 14. Same was the highest minimum temperature in 2019 too on December 10.
In both years, minimum mercury levels had witnessed a drop post mid-December.
On Monday, Nagpur recorded the second highest minimum temperature in the region at 19.4 degree Celsius. Wardha recorded the highest at 19.8 degree Celsius.
As per the forecast of met department, minimum temperatures in the city will start falling after December 17 and are expected to be around 15 degree Celsius. Some parts might experience cloudy sky and light rainfall in the next two days.