NEW DELHI: Cold wave conditions returned to some parts of the capital on Sunday after a reprieve of 5 days, with a sharp drop in the minimum temperatures throughout Delhi-NCR and chilly northwesterly winds gusting through the day, which was clear and sunny.Brace for a more dip in temperature levels over the next two-three days, the met department said, as a cold wave grasped the northern plains with temperatures at some locations dropping well listed below freezing.The minimum at Delhis base station, Safdarjung, was 4.7 degrees Celsius, a big drop from 10.5 degrees a day previously.

The optimum likewise dropped to 17.8 degree C, two notches listed below normal versus 21.5 degree C on Saturday.Mercury might rise from January 19As chilly weather went back to the city on Sunday, cold wave conditions were observed at a number of locations, including Jafarpur, the coldest spot at 2.6 degrees Celsius, followed by Ayanagar at 3 degrees C, Ridge at 3.2 degrees C and Lodhi Road recording 3.8 degrees C.There was a quick flutter amongst weather watchers in the early morning with reports of -0.1 degree Celsius having actually been taped at a weather station in Delhis Najafgarh.

Nevertheless, the weather department stated that was an error since the automatic weather condition station set up at UJWA, an agro forestry institute near Najafgarh, was not working properly.Delhi weather condition: Many flights delayed due to fogThe previous cold wave in the city had actually continued for a minimum of five straight days till January 9, when the minimum temperature level at Safdarjung was 3.8 degree Celsius.

Afterwards, temperatures had actually begun to increase under the influence of a western disturbance.According to weather experts, Delhi began receiving icy northwesterly winds from Saturday night, which cause the drop in the mercury.

The optimum wind speed on Sunday reached 20kmph, an IMD authorities stated.

The high-speed northwesterly winds from the Himalayas under fresh snow started to go into Delhi at good speed, resulting in a drop in both the maximum and minimum temperature levels.

The strong winds likewise enhanced visibility and kept the sky clear which affected the minimum temperature levels as the clear skies permit a clear passage of the heat radiation released by the earth during nighttime to the external environment, stated Mahesh Palawat, vice chairman, climate change and meteorology, Skymet.Delhi reels under severe cold, people require to bonfires for respiteHe added that temperature levels may even more stop by 1-2 degree Celsius on Monday, and after that see gradual drop till January 18.

However, from January 19, the temperature level will start increasing due to a fresh western disturbance.A western disruption (WD) is a moisture-laden low-pressure pulse stemming from areas close to the Mediterranean, which often brings rain or snow to north India.

Upon a WDs arrival, the wind direction changes in the northern plains, with warmer easterlies predominating.

Following the WDs passage, the winds end up being northwesterly, flowing from colder areas in the north or from the hills.

A cold wave is declared when the minimum temperature level is either listed below four degrees C or the temperature level is 4.5 degrees listed below normal.Smog engulfs Delhi, air quality goes into extremely bad categoryAccording to IMD, numerous parts of the city might come under the grip of cold wave conditions and the temperature levels might fall even more over the next 3 days.

The city might also experience moderate fog in the morning.The maximum and minimum temperature levels at Safdarjung are most likely to hover around 18 and 3 degrees C, respectively, on Monday.WatchCold wave returns: Temperatures in Delhi NCR to dip further, states IMD