Biting cold gripped north India on Tuesday while dense fog caused several accidents, leaving three people dead and 40 injured in Uttar Pradesh and Haryana, and forcing a change in school timings in Punjab.
Dense to very dense fog engulfed the Indo-Gangetic plains, including Delhi, for the second morning on the trot on Tuesday, lowering visibility to 50 metres in the city and affecting road traffic and train movement.
Flight operations, however, were unaffected in the national capital, an airport official said. On Tuesday, 11 trains were reported running late by one to five hours.
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Visibility dropped to 50 metres at the Palam and Safdarjung airports in Delhi between 5.30 am and 7 am, an IMD official said.
The Safdarjung Observatory, the primary weather station in Delhi, recorded a minimum temperature of 6.3 degrees Celsius, two notches below normal. The maximum temperature is likely to settle around 22 degrees Celsius.
The minimum and maximum temperatures are likely to drop to five degrees Celsius and 20 degrees Celsius in the next few days in Delhi.
Satellite images showed a thick layer of fog over Punjab, Haryana, Delhi, north Rajasthan and Uttar Pradesh in the morning.