IGI airport: Fog affects schedule of over 120 flights, 18 diverted

The airport is equipped with three CAT-III B instrument landing system (ILS) -- two on the main runway and one on the third runway.

A total of 232 domestic and international flights arrived assisted by various category of ILS. 107 flights with CAT-I (when visibility is upto 550 m), 40 flights with CAT¿II (when visibility was between 550 and 300 me), 64 flights with CAT IIIA (when visibility was between 300 and 200 m) and 21 flights with CAT IIIB (visibility between 200 and 50 m).

According to the MeT office, the visibility today may reduce below 500 m in shallow fog after 8.30 PM and further reduce below 200 m in dense fog (CAT-III fog) from 1.30 AM.

The MeT department had predicted CAT-III fog (dense fog when the runway visibility drops to below 50 m) till Christmas.

Yesterday, over 100 flights were badly affected due to dense fog.

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