New Delhi, Dec. 19 -- As winter arrives in northern India, dense fog is forecasted in Bihar, Haryana, Chandigarh, Delhi, Punjab, Uttar Pradesh, Madhya Pradesh, Chhattisgarh, and Uttarakhand until December 20. In some areas, the fog will last until December 22, and in certain isolated regions, it may persist until December 25, as per the India Meteorological Department. (IMD).

The weather forecasting agency in a X post on Friday, 19 December said, "dense/very dense fog very likely at isolated places over Bihar, Haryana, Chandigarh & Delhi, Punjab, Uttar Pradesh, Madhya Pradesh, Chhattisgarh and Uttarakhand till morning hours of 20th December."

In a separate post, IMD noted, "Dense to very dense fog during night/morning hours likely to co...