Fog disrupted some flight operations at the Indira Gandhi International Airport (IGIA) on Friday morning. It led to the general visibility dropping to 200 metres at 6.30am.
The good news was that the airport saw only an hour of dense fog.
At the third runway 29, visibility remained poor for more than five hours while at the main runway 28, it dipped only for about two hours.
What is unusual about the weather conditions that Delhi has witnessed this year is that dense fog in peak winter months was at a record low. And it is February that has been witnessing foggy weather with bothersome regularity.
"The reason for this is the late arrival of the western disturbances in Delhi," said RK Jenamani, Director-in-Charge of the IGIA met unit. "We are expecting rainfall on February 13 and 14, which might result in more fog," he added.