Persistent thick fog

A thick blanket of fog covered Delhi on Sunday morning, disrupting flight and train schedules in the national capital. The city also witnessed a dip in temperature, accompanied by cold wave conditions.
Around 51 trains and several flights were delayed due to low visibility caused by fog.
The India Meteorological Department reported a temperature of 10°C at 5.30 am on Sunday, slightly lower than Saturday’s 10.2°C.
The Met office also noted that visibility at Palam was zero between 4am and 7.30am, while Safdarjung saw visibility drop to 0.50 meters at 5.30am.
"While landings and take-offs are continuing, flights that are not CAT III compliant may face delays. Passengers are advised to contact the respective airlines for updates. We regret the inconvenience caused," Delhi Airport stated in an advisory on X.
Foggy conditions also impacted train services, with several trains running late at New Delhi Railway Station.
Delhi's air quality remained in the 'very poor' category, with an AQI of 377 recorded at 6 am, slightly improved from 385 on Saturday, according to the Central Pollution Control Board. The AQI scale categorizes readings between 301 and 400 as 'very poor,' while 401 to 500 is considered 'severe.'
The cold weather drove many homeless individuals to night shelters across the city. At Bhikaji Cama Place, several people were seen taking refuge, while the Delhi Urban Shelter Improvement Board (DUSIB) reported setting up 235 pagoda tents to accommodate the homeless.
Night shelters have also been established in areas such as AIIMS, Lodhi Road, and Nizamuddin flyover to provide relief during the ongoing cold wave. Residents across the capital were seen gathering around bonfires to keep warm.
The air quality in Delhi was categorized as "very poor," with an AQI of 372 at 9am. The minimum temperature was 9.4°C, and humidity stood at 95%. The Met office has forecasted dense fog throughout the day, with a maximum temperature expected around 18°C.
Similar weather conditions prevailed in other parts of North India. Lucknow recorded a temperature of 11°C at 5.30am, while Jammu and Kashmir’s capital, Srinagar, registered -1°C. Chandigarh recorded 9.1°C at the same time.