New Delhi, Nov 30: Dense fog condition gripped Delhi, National Capital Region and several other northern states of India this morning. The first fog this season led to the delay of a total of 18 flights and 50 north-bound trains and 13 flights have been diverted so far from Delhi’s IGI airport. As per reports, the relative humidity in the national capital early this morning was recorded at 98 per cent.  “More than 18 flights were delayed due to the sharp drop in runway visibility, forcing the airport authorities to switch to operations under LVP,” officials said.

According to railway officials, 50 Delhi-bound services from Patna, Ranchi, Howrah, Bhubaneswar and other places were affected due to the thick fog cover. “The trains were running late between one to three hours,” an official said. The relative humidity was recorded at 98 per cent. As per Sky Met weather report, the reason for this widespread fog can be attributed to the change in wind pattern from northwesterly to easterly-southeasterly which has increased the levels of humidity..

The Indira Gandhi International Airport saw visibility plunge to 100 metres, resulting in the delay in flights due to low visibility. As per report by Delhi Traffic police, the air quality in capital remains ‘severe’. PM 2.5 & PM 10 levels remained above normal standards in several areas. The visibility was recorded at 800 metres at 5:30 AM, which dropped to 200 metres three hours later. The season’s first fog shrouded Delhi, NCR, Uttar Pradesh and Dholpur city of Rajasthan.(ALSO READ:  Dense fog envelops northern India, air quality in Delhi and NCR remains ‘severe’)

The India Meteorological Department in a weather warning on Tuesday mentioned that shallow to moderate fog at isolated places is very likely to cover Delhi, Chandigarh, Haryana, Punjab, west Uttar Pardesh, West Bengal and Sikkim. It further stated that this condition is expected to last another six days.

Sky Met weather report mentioned that Palam reported thick fog early this morning where visibility in the region dropped to 400 meters between 6 am to 7 am. Moreover, R K Puram, Saket, AIIMS, Dhaula Kuan, East of Kailash, Noida and Faridabad too reported similar visibility conditions.