Double Attack of Coldwave and poor Air quality in Northernwestern India.
Key sentence:
- In Delhi, it was likely that air quality would remain in the “very poor” or “severe” category.
- In isolated pockets in Chandigarh, Punjab, Haryana, and Himachal Pradesh on Friday, cold situations are probable.
- On Friday and Saturday, dense to quite dense fog was also probably over northern Uttar Pradesh, Punjab, and Haryana.
On Friday, in the midst of a decrease in wind speed that has hindered the dispersal of contaminants, North-West India, including Delhi, Noida as well as Ghaziabad, mostly registered “very poor” to “severe” air quality.
In Delhi, it was likely that air quality would remain in the “very poor” or “severe” category. The airflow index over Delhi, which determines the atmospheric ability to disperse pollutants was projected to be 5,000 m2/s. It is considered bad to have a ventilation index under 2,350.
As the IMD report stated:
Separately, the India Meteorological Department (IMD) said that a cold wave occurred over many parts of India, which include Jammu & Kashmir, Punjab as well as Haryana.
During the next two days, no substantial improvement in the minimum and maximum temperatures were probable. In minimum temperatures, they were likely to rise by 2-5 ° C briefly and drop by 2-5 ° C in maximum temperatures across north-western India over the next three days, IMD reported.
Cold waves will occur at a minimum of 10° C:
In isolated pockets in Chandigarh, Punjab, Haryana, and Himachal Pradesh on Friday, cold situations are probable.
In the plains, a cold wave arises when the minimum temperature is 10 degrees Celsius or under as well as 4.5 notches less than the usual two-day season. Once the minimum temperature in the plains is below 4 degrees Celsius, it is also reported.
On Friday as well as Saturday, dense to quite dense
the fog was also probably over northern Uttar Pradesh, Punjab, and Haryana.
As IMD bulletin stated:
From tomorrow [Saturday], an active Western Disturbance is likely to impact the Western Himalayan Region, which is expected to cause scattered to relatively common rainfall/snowfall across Jammu, Gilgit, Baltistan, Kashmir, Ladakh, & Muzaffarabad; isolated to sporadic rainfall/snowfall over Himachal Pradesh, Uttarakhand as well as light rain/thundershowers over neighbouring plains of northwest India through December 27.
Kuldeep Shrivastava stated:
The advancing Western Disturbance may induce light rain to Delhi on December 27, after which temperatures are expected to drop again, Kuldeep Shrivastava, who leads the Regional Weather Forecasting Centre, informed.
