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Air quality deteriorates over NW India; temperature to stay below normal

Due to dry north/northwesterly winds blowing over the region, minimum temperatures are likely to remain below normal over most parts of northwest India during next 3-4 days

Published on: Jan 14, 2021, 08:13:25 IST
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Many towns and cities over northwest India started recording very poor to severe air quality on Thursday.

People travel on a tractor trolly amid low visibility due to dense fog, in Gurugram on January 13. (PTI)
People travel on a tractor trolly amid low visibility due to dense fog, in Gurugram on January 13. (PTI)

According to air quality early warning system for Delhi under the ministry of earth sciences, winds are likely to slow down and ventilation is likely to reduce significantly from January 14 to 18 which will lead to further deterioration in air quality.

Air quality is likely to deteriorate and reach the upper end of very poor category on Thursday and to severe category on Friday.

Delhi recorded very poor air with an air quality index of 389 today while Ghaziabad, Faridabad and Greater Noida are in severe category.

Due to dry north/northwesterly winds blowing over the region, minimum temperatures are likely to remain below normal over most parts of northwest India during next 3-4 days.

Cold day/severe cold day conditions are likely to continue in many pockets over Punjab and Haryana, Chandigarh, Delhi and in some pockets of Uttar Pradesh and Uttarakhand during the next three days. Cold wave/severe cold wave conditions are likely in many pockets over Punjab, Haryana, Chandigarh, Delhi and Uttar Pradesh; in some pockets over east Rajasthan and in isolated pockets over West Rajasthan during the next 3-4 days.

Ground frost is also very likely in isolated pockets over Uttarakhand, Punjab, Haryana, Chandigarh, West Uttar Pradesh and north Rajasthan during the next two days.

Dense to very dense fog conditions at isolated places are very likely over northwest India during the next 4-5 days.

According to the India Meteorological Department, a cold day or severe cold day is classified as such based on two parameters—a minimum temperature of under 10 degrees and maximum temperature of 4.5 degrees C or 6.4 degrees C below normal, respectively.

A cold wave occurs in the plains when the minimum temperature is 10 degrees Celsius or below and/or is 4.5 notches lower than the season’s normal for two consecutive days. A cold wave is also declared when the minimum temperature is less than 4 degrees C in the plains.

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