In barely visible pics: Thick fog engulfs north India, over 400 flights delayed

Dense fog engulfed north India, including the national capital, reducing visibility to zero in several areas, according to the weather department. (Image credit: PTI)

Operations at the national capital's airport were disrupted, leading to the delay of over 400 flights, as reported by an official. Some areas of the city experienced zero visibility due to the thick fog. However, the official confirmed that while more than 400 flights were delayed at Indira Gandhi International Airport (IGIA), there were no diversions. (Image credit: PTI)

Delhi's 24-hour average AQI was recorded at 371, placing it in the "very poor" category, according to the Central Pollution Control Board (CPCB). Of the 32 monitoring stations, 10 reported AQI levels in the "severe" category, with readings exceeding 400, as per the SAMEER app. (Image credit: PTI)

The Delhi Urban Shelter Improvement Board (DUSIB) has established 235 pagoda tents to offer shelter to the homeless. Night shelters have been set up in various parts of the national capital, including AIIMS, Lodhi Road, and Nizamuddin flyover. (Image credit: PTI)

Coldwave conditions continued in Jammu and Kashmir, with temperatures dropping below zero in several areas. The chilly weather has caused the surface of Dal Lake to remain frozen. (Image credit: PTI)

Jaipur was enveloped in a dense fog, significantly reducing visibility, with the temperature recorded at 10.2 degrees Celsius. Meanwhile, in Jaisalmer, the temperature was 9.6 degrees Celsius. (Image credit: PTI)

According to the IMD, a cold wave is declared when the minimum temperature at a station falls to 10 degrees Celsius or lower in plains, and 0 degrees Celsius or lower in hilly areas. (Image credit: PTI)