A layer of fog continues to shroud north and northeast India on Thursday, obstructing visibility and lowering it as low as zero metres at several places, affecting air and rail traffic.
Dense to very dense fog prevailed in parts of Delhi, Haryana, Punjab, Rajasthan, Uttar Pradesh, Jharkhand, Assam and Odisha.
According to the India Meteorological Department (IMD), the current weather conditions are likely to prevail in the next five days. "Cold wave to severe cold wave conditions are likely to continue over northwest India for five days," it said.
18 trains running late
A total of 18 trains arriving in Delhi were delayed by up to six hours due to heavy fog ensheathing the railway tracks, the India Railways spokesperson said.
| Train Name and Number | Late by hours |
| 12426 Jammu Tawi-New Delhi Rajdhani Express | 01:45 |
| 22691 Bangalore-Nizamuddin Rajdhani Express | 01:10 |
| 22811 Bhubaneshwar-New Delhi Rajdhani Express | 03:45 |
| 12266 Jammu Tawi-Delhi Sarai Rohilla Duronto | 02:30 |
| 12281 Bhubaneshwar-New Delhi Duronto | 04:30 |
| 12801 Puri-Nizamuddin Purushotaam Express | 06:00 |
| 12427 Rewa-Anand Vihar Express | 04:15 |
| 12225 Azamgarh-Delhi Junction Kaifiyat Express | 05:30 |
| 12919 Ambedkarnagar-Katra | 03:00 |
| 14207 Pratapgarh MLDP-Delhi | 01:20 |
| 14042 Dehradun-Delhi Junction | 01:20 |
| 12557 Muzaffarpur-Anand Vihar | 03:15 |
| 12615 Chennai-New Delhi Express | 01:00 |
| 12138 Ferozpur-Mumbai Express | 01:00 |
| 12904 Amritsar-Mumabai Express | 01:20 |
| 12414 Jammu Tawi-Ajmer Pooja Express | 01:45 |
| 15658 Kamkhya-Delhi Junction | 01:00 |
| 12447 Manikpur-Nizamuddin Express | 02:00 |
Flight operations affected
According to the Palam Observatory at the Indira Gandhi Internation (IGI) airport, Delhi, the visibility was reduced to only 50 metres, which impacts the flight operations. Only the CAT III-B-compliant runaways can enable a plane to take off-landing under such conditions.
{{/usCountry}}According to the Palam Observatory at the Indira Gandhi Internation (IGI) airport, Delhi, the visibility was reduced to only 50 metres, which impacts the flight operations. Only the CAT III-B-compliant runaways can enable a plane to take off-landing under such conditions.
{{/usCountry}}Several flight operations were delayed at IGI airport due to low visibility amid the fog. Passengers stranded at the airport awaited the turn of their flights that were running late from the scheduled time.
"I have come from Bahrain. My flight was delayed by one hour," a passenger tod ANI.