Delhi Airport issued an alert to all passengers on Thursday, given the persisting heavy fog in the capital and the Indian Meteorological Department (IMD) has issued a ‘red alert’. The airport said all combat operations were now normal, but “low visibility procedures were in progress”. About 100 flights were delayed between Monday and Tuesday, some diverted due to fog.
Passengers have requested that they contact the relevant airline for updated flight information,” it added.
“Dense fog to very thick fog in many places, cold to very cold conditions in some places, and cold conditions in isolated places,” the Meteorological Administration wrote in the advisory.
IMD uses four color codes for weather alerts: green (no action required), yellow (watch and stay updated), orange (ready) and red (take action).
A paralyzing cold gripped Delhi, with daytime temperatures several orders of magnitude below normal. On Wednesday, the capital recorded its lowest temperature of the season at 4.4 degrees Celsius. Prior to this, the current lowest temperature in winter was recorded at 5 degrees Celsius on December 26th.
The IMD declares a ‘cold wave’ when the minimum temperature is more than 4.5 degrees lower than normal or less than 4 degrees.
On Thursday, the lowest temperature is expected to be 3 degrees and the highest is expected to be around 17 degrees.