Flight operations unaffected, but more fog likely today

Flight operations remained unaffected at the Indira Gandhi International airport for the third consecutive day on Friday though low visibility procedures were adopted due to fog.

‘Though there were 54 delays and six cancellations, but it was either due to poor weather at the destination or some operational reasons,’ airport sources said.

Fog started to descend on the airport from 10 pm on Thursday and the runway visibility at the third runway reduced to 700m, forcing the airport authorities to implement low visibility procedures. But on the main runway, visibility was 1,200m.

The LVP were implemented on main runway at 12.51 am, when the visibility dropped to 350m.

‘The visibility dipped on the runway between 2 am and 5 am, but as it was way above the required minimum of 125m and 150m for small and large aircraft, there was no disruption,’ they said.

‘Arriving flights had to use various categories of instrument landing system,’ they said, adding 87 flights landed with the assistance of various categories of ILS.

Of these, 52 with CAT-I (when visibility was up to 550m), 19 flights with CATII (when visibility was between 550 and 300 m), 16 flights with CATIII (when visibility was between 300 and 50m). According to the MeT office, airport may witness fog from Friday night and visibility may reduce to 300m by Saturday morning.

Flight operations were badly hit due to dense fog early this week leading to delay, cancellations and diversions of over 300 flights. But for last two days, operations are normal.
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