Air quality to worsen, temperature to drop in northwest as New Year approaches

Most towns and cities in northwest India recorded poor and really poor category air on Saturday. While Delhi has an air quality index (AQI) of 324 within the very poor category, NCR cities of Faridabad, Gurugram and Noida recorded poor air quality. The air quality is probably going to deteriorate beyond December 27 thanks to a change in wind speed, related to an approaching western disturbance. “The wind speed increased to 10 to fifteen kmph on Friday which helped improve the air quality but we expect AQI to deteriorate again on December 27 and 28 to the lower end of the very poor or severe category. When a western disturbance approaches, winds hamper , leading to an accumulation of pollutants,” said VK Soni, scientist at IMD’s air quality management division.

Air quality to worsen, temperature to drop in northwest as New Year approaches
Cold wave to severe cold wave conditions are likely in isolated pockets over Punjab and Haryana, Chandigarh and Delhi(PTI Photo)



A moderate intensity western disturbance is probably going to steer to a considerable fall in minimum temperatures once more at the top of the year. it'll be preceded by a gradual rise in minimum temperatures by 2 to three degree C within the next three days, from December 25 to 27, followed by the three to five degree C drop over northwest India between December 28 and 30.

“Minimum temperatures are likely to drop in around 3 to five degree C after December 28. Winter is at its peak during December end and January beginning. But due to the influence of a western disturbance, it are often harsher. Both October and November are colder than usual this year, but December has been mild thus far ,” said RK Jenamani, senior scientist, national meteorology centre.

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The western disturbance is probably going to affect Western Himalayan region and cause widespread snowfall over Jammu and Kashmir, Ladakh, Gilgit, Baltistan, Muzaffarabad; scattered snowfall over Himachal Pradesh, Uttarakhand and isolated rain or thundershowers over adjoining plains of northwest India during December 27 and 28.

“After the passage of the system and under the influence of the resultant strengthening of cold and dry north-westerly or northerly lower-level winds, wave conditions will set in again,” IMD said in its Friday bulletin.

Cold wave to severe wave conditions are likely in isolated pockets over Punjab and Haryana, Chandigarh and Delhi and ‘cold wave’ conditions are likely in isolated pockets over Uttar Pradesh , north Rajasthan and north Madhya Pradesh during December 28 and 29.

Ground frost conditions are likely over parts of Punjab, Haryana, Chandigarh, Delhi, Uttarakhand, Himachal Pradesh and north Rajasthan, during December 28 and 29.(Asianewsera)