With a blanket of dense fog covering many parts of north India, rail and road traffic were disrupted on 22 December 2022.
Around 20 trains were running late early in the day. They were delayed by durations ranging from 1.5 to 4.5 hours.
Visibility at the Palam and Safdarjung airports in Delhi was limited to 200 metres at 5:30 am.
Amid low temperatures, high moisture and still winds, a layer of dense to very dense fog persisted over Punjab, Haryana, northwest Rajasthan, west and east Uttar Pradesh and Bihar.
"Satellite imagery shows continuation of dense fog layer from Punjab and northwest Rajasthan to Bihar," an IMD official said.
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At 5:30 am, visibility levels stood at zero in Bhatinda; 25m in Ganganagar, Chandigarh, Gorakhpur and Bareilly, and 50m in Amritsar, Churu Bahraich and Ambala.
The situation is expected to improve soon with a decrease in relative humidity at the lower tropospheric level over the Indo-Gangetic plains, the Indian Meteorological Department said.
(With PTI inputs)